Parental Access Research Articles

Minor and Parental Access to Electronic Health Records: Differences Across Four Countries.

An increasing number of countries are implementing patient access to electronic health records (EHR). However, EHR access for parents, children and adolescents presents ethical challenges of data integrity, and regulations vary across providers, regions, and countries. In the present study, we compare EHR access policy for parents, children and adolescents in four countries. Documentation from three areas: upper age limit of minors for which parents have access; age at which minors obtain access; and possibilities of access restriction and extension was collected from Sweden, Norway, Finland, and Estonia. Results showed that while all systems provided parents with automatic proxy access, age limits for its expiry differed. Furthermore, a lower minimum age than 18 for adolescent access was present in two of four countries. Differences between countries and potential implications for adolescents are discussed. We conclude that experiences of various approaches should be explored to promote the development of EHR regulations for parents, children and adolescents that increases safety, quality, and equality of care.

Wonders & Worries: A randomized clinical trial of a psychosocial intervention for children who have a parent with cancer.

The aim of this study was to test the effectiveness of Wonders & Worries, a psychosocial intervention for children who have a parent with cancer. Primary goals were to improve family quality of life, functioning and communication skills as reported by parent and child, enhance children's emotional/behavioral adjustment and parenting efficacy, while decreasing parenting concerns and ill parents' depression and anxiety. Sixty families were recruited from a community based non-profit agency. Parents diagnosed with Stage I-III cancer and their children ages 5-14years were enrolled and randomized into intervention (n=32) or wait-list control groups (n=28). Families received 2 parent consults, six weekly 1-h individual child sessions, and 1 treatment center tour. The intervention was comprised of an age-appropriate understanding of cancer and expression of feelings, coping skills to ease feelings related to parent's cancer and enhanced ability to communicate about the disease. Controls received parent consult and access to W & W resources. Data were obtained from standardized measures at baseline; 6 and 10weeks follow up. Intervention group significantly improved on parenting concerns, parenting self-efficacy, and family quality of life. Children in the intervention group had significantly lower emotional and behavioral problems and worries related to cancer compared to controls. The intervention failed to significantly affect ill parent's anxiety, depressed mood, family functioning and child's anxiety. The Wonders & Worries intervention promoted positive adaptation for ill parents and their children. This intervention is promising enough to warrant further refinement and testing with larger, more diverse samples.

Park access and mental health among parents and children during the COVID-19 pandemic

BackgroundTime spent outdoors and in nature has been associated with numerous benefits to health and well-being. We examined relationships between park access and mental health for children and parents during the COVID-19 pandemic. We also explored associations between park access and co-participation of parent and child in time outdoors, and child and parent physical activity.MethodsWe used data from 1,000 respondents to a nationally representative U.S. survey of parent–child dyads during October–November 2020. Park access was defined as an affirmative response to: “do you have a park that you can safely walk to within 10 min of your home?” Child mental health was operationalized as the Strengths and Difficulties Questionnaire (SDQ) total difficulties score. The Patient Health Questionnaire-4 (PHQ-4) total score assessed parent mental health and the International Physical Activity Questionnaire (IPAQ) assessed parent physical activity. Child physical activity and co-participation in outdoor activity were reported as number of days in the prior week. Linear regression was used to examine relationships between park access and health outcomes in models adjusted for child and parent characteristics and COVID-19 impact.ResultsOur sample included 500 parents of children ages 6–10 years, and 500 parent–child dyads of children ages 11–17 years. Park access was associated with a lower SDQ total score among children (β: -1.26, 95% CI: -2.25, -0.27) and a lower PHQ-4 total score among parents (β: -0.89, 95% CI: -1.39, -0.40). In models stratified by child age, these associations were observed for SDQ scores among adolescents ages 11–17 and for PHQ-4 scores among parents of children ages 6–10 years. Park access was also associated with 0.50 more days/week of co-participation in outdoor time (95% CI: 0.16, 0.84), and higher levels of parent physical activity (β: 1009 MET-min/week, 95% CI: 301, 1717), but not child physical activity (β: 0.31 days/week, 95% CI: -0.03, 0.66).ConclusionsPark access was associated with better mental health among children and parents, and more parent physical activity and parent–child co-participation in outdooractivity during the COVID-19 pandemic. Access to nearby parks may be an important resource to promote health and well-being, for both individuals and families.

Exclusive Breastfeeding and Migrant Mothers’ Agency in Chile

The aim of this study was to understand the agencies of migrant mothers in their interaction with health professionals promoting compliance with exclusive breastfeeding (EB). This qualitative study conducted interviews with breastfeeding migrant and Chilean women and health professionals from the Chile Crece Contigo Program in Chile. The results indicated that migrant women who did not practice EB took actions to resist pressure from health professionals considered a form of agency; however, this did not necessarily free them from social judgment. In addition, these actions were associated with a lack of promotion of parental co-responsibility and access to social and economic resources.

Gene prediction for leaf margin phenotype and fruit flesh color in pineapple (Ananas comosus) using haplotype-resolved genome sequencing.

Pineapple (Ananas comosus (L.) Merr.) is one of the most economically important tropical fruit species. The major aim of the breeding programs in several countries, including Japan, is quality improvement, mainly for the fresh market. ‘Yugafu’, a Japanese cultivar with distinctive pipe-type leaf margin phenotype and white flesh color, is popular for fresh consumption. Therefore, genome sequencing of ‘Yugafu’ is expected to assist pineapple breeding. Here, we developed a haplotype-resolved assembly for the heterozygous genome of ‘Yugafu’ using long-read sequencing technology and obtained a pair of 25 pseudomolecule sequences inherited from the parental accessions ‘Cream pineapple’ and ‘HI101’. The causative genes for leaf margin and fruit flesh color were identified. Fine mapping revealed a 162-kb region on CLG23 for the leaf margin phenotype. In this region, 20 kb of inverted repeat was specifically observed in the ‘Cream pineapple’ derived allele, and the WUSCHEL-related homeobox 3 (AcWOX3) gene was predicted as the key gene for leaf margin morphogenesis. Dominantly repressed AcWOX3 via RNAi was suggested to be the cause of the pipe-type leaf margin phenotype. Quantitative trait locus (QTL) analysis revealed that the terminal region of CLG08 contributed to white flesh and low carotenoid content. Carotenoid cleaved dioxygenase 4 (AcCCD4), a key gene for carotenoid degradation underlying this QTL, was predicted as the key gene for white flesh color through expression analysis. These findings could assist in modern pineapple breeding and facilitate marker-assisted selection for important traits.

Applying Systems Thinking Approaches to Address Preventive Health Factors through Public Parks and Recreation Agencies

Within the United States parks and recreation agencies (P&R) manage public facilities, spaces, lands, and recreation programs. Public health (PH) evidence has increasingly pointed to local public P&R agencies as critical for promoting preventive health. Programs and strategies are available, but most P&R agencies have limited resources and lack local knowledge on which to base actions. However, the research base is growing. The global research question has shifted from asking IF P&R agencies can positively affect PH factors, to HOW they can best do so with limited resources.This research adapted a systems theory approach to how local public P&R agencies are addressing health factors. Methods included a literature review along with iterative exploration through a three-stage Delphi panel study with 17 P&R agency Expert Panelists in the U.S and Canada. Panelists were identified through a waterfall selection process. Each had at least three years of senior administration experience with interest in addressing PH factors.The study explored which preventive factors appear to be most modifiable by P&R. Results indicated increased physical activity, improved nutrition, enhanced safety or perception of safety, increased social and parental engagement, improved transportation and access to locations (especially nature), and cessation or reduced overconsumption of tobacco and alcohol. However, the priority of factors varies by community, and the continuing challenge is determining the priority of the factors for agencies and their partners to address. Community-specific data are not typically readily available to P&R agencies. Programs, strategies, internal methods, policies, and documents utilized by agencies were collected. Thirty-one related national initiatives (programs) were identified and ranked by the panelists.Key common strategies for P&R were identified. Results indicated a need to focus strategies on leadership and adequate funding to create a strong organizational culture of systematic assessment for addressing PH through allocation of P&R staff and financial resources. Systems thinking analysis and strategies can improve outcomes for cultural ethics of inclusion and equity, equitable access to assets and programs, collaboration with other partners, utilization of crime prevention and environmental design strategies, increased health promotions and education, and centralized tracking and evaluation of feasible measures.Implications for research include needs for additional validation and dissemination of research, evidence-based tools, and proven methods. There continues to be a strong need to help address gaps in knowledge transfer between research and practice realms. Management implications suggest methods for practice to enhance systems-thinking approaches for better preventive health outcomes through P&R in communities.

Genetic counseling access for parents of newborns who screen positive for cystic fibrosis: Consensus guidelines.

A risk associated with cystic fibrosis newborn screening (CFNBS) is parental misunderstanding of genetic information generated by the over 6600 positive screens reported annually in the United States. CFNBS algorithms incorporating DNA analysis can generate genetic information that requires clinical interpretation and has significance for the newborn, parents, and other relatives. Engagement between CF care centers and trained genetic counseling providers, such as licensed and/or certified genetic counselors (GCs), is variable and limited in providing information to CFNBS positive (CFNBS+) families. Using a modified Delphi process, a workgroup of CFNBS experts developed recommendation statements for engagement of genetic counseling services in CF care centers where CFNBS + diagnostic evaluations are performed. Statements were assessed over three rounds of surveys, one face-to-face meeting, and through public feedback. Seventeen statements achieved >80% consensus (range: 82%-100%). The workgroup affirmed prior CFF policy statements recommending genetic counseling for parents of infants with CFNBS+. The remaining statements addressed infrastructure and logistics of genetic counseling services, including defining appropriate training for genetic counseling providers and counseling content, establishing a path to equal access to genetic counseling providers across CF care centers, and setting a standard for client-centered CFNBS genetic counseling that is respectful of diverse patient needs and autonomy. Implementation of client-centered genetic counseling for CFNBS+families in CF care centers by providers with expertise in both CF and genetic counseling will require efforts to further define core concepts, enhance the education of providers, and develop opportunities for access via telemedicine.

Accessibility of transportation to child‐welfare involved parents and the related impact on court‐ordered service participation

AbstractFamilies involved with Child Protective Services (CPS) face daunting steps to meet their service plan goals in the effort to achieve reunification with their children. Families who lack transportation access face additional barriers. This study explored Court Appointed Special Advocates, or CASA, volunteers' perspectives of the impact of transportation access on child welfare‐involved families' service participation. Semi‐structured interviews were conducted with nine CASA volunteers in a large city in a Southeastern state. Questions were asked regarding volunteers' experiences of transportation access for parents and children. Primary emphasis was placed on families' access to services. Three primary themes emerged in the data analysis: (1) challenges are wide‐ranging, exacerbated by transportation issues; (2) transportation linked to court‐ordered services success; and (3) practical recommendations stem from transportation justice. Interviews illuminated transportation challenges faced by families involved with CPS. The observed link between transportation inequity and CPS permanency outcomes warrants serious consideration in future research. Recommendations provide initial guidance to begin addressing disparities faced by these families.

Parent-Reported Motivators and Barriers to Participation in a Community-Based Intervention Designed for Children With Motor Skill Difficulties: A Qualitative Program Evaluation.

Parents play a critical role in their child's participation in community-based intervention programs. Yet, their perspectives remain largely overlooked in the literature. This qualitative program evaluation used social cognitive theory to understand parents' motivators and barriers to participation in a community-based intervention program designed for children with motor skill difficulties. Parents (n = 15) of children with motor skill difficulties enrolled in a community-based intervention program participated in semistructured interviews. Thematic analysis revealed six motivators (child needs, satisfaction, perceived impact, affordability, design, and program culture) and three perceived barriers (parent knowledge, access, and accommodations). Parents' motivators and barriers reflected a combination of personal and environmental factors consistent with social cognitive theory. This study revealed novel insight into program-related environmental motivators and barriers. Program leaders should consider ongoing evaluation and application of parental perspectives to optimize family participation and retention in community-based interventions.

Information (Digital) Rights of Children, Illegally Displaced from the Ukrainian Territory During Wartime: Mechanisms of International Legal Protection

This scientific publication is designed to prove that mechanisms of child protection in armed conflicts established by international legal instruments as well as local regulations and investigated in this paper are not sufficient to sustain the Russian aggression. It is necessary to introduce new stringent standards as an immediate and effective response from the international community to the abduction of every child. Children in the occupied territories have the right to always communicate with their parents, receive psychological and medical help. In all circumstances, children have the right to liberty and security of person, the right to know their origins, keep their personal documents and receive education in their mother tongue. The main objective of this scientific publication is to research the international legal experience on protection of information (digital) rights of children unlawfully removed from the territory of their residence during wartime or living in the occupied territories as well as to suggest improvements to the current legislation. The authors conclude that to reach the adequate level of protection of information (digital) rights of children illegally removed from the Ukrainian territory during the war or living in the occupied territories, the global transformation of legislation is necessary, primarily in terms of inclusive protection of children, effective prevention of violence and practical involvement of children in peace processes. We recommend fundamentally revising the personal data protection of children surviving in hostile environment, taken into captivity or living on the occupied territories. International legal instruments adopted within the subsequent institutional reforms should not only establish declarative statements, but also penalties for violation of the humanitarian law. Further steps are: establishment of the database on children living in the military action zones and on children taken as prisoners or living in the occupied territories; ensure the unimpeded access of parents to this database; provide means of contact between children and parents, including mobile connection. It is also necessary to ensure the right of children in captivity or under occupation to communication and education in their mother tongue; to prevent adoption of captured children or children residing in occupied territories according to simplified procedure and to prohibit the use of children as means of exchange. Moreover, it is vital to ensure the accountability of war criminals, prohibit the use of child labor and involvement of children in hostilities, prohibit the use of children as human shields, provide children with psychological and medical help and prohibit any forms of discrimination against children or persons with special needs that are held captive or live under occupation. Children and persons who need regular insulin injections, dialysis, radiation or chemotherapy should be provided with the adequate medical care.

Effects of Third-party Approaches on Parental Access to Consultation Services: Focusing on Social Work to Support Parenting

Effects of Third-party Approaches on Parental Access to Consultation Services: Focusing on Social Work to Support Parenting

Attitudes toward Pursuing Genetic Testing among Parents of Children with Autism Spectrum Disorder in Taiwan: A Qualitative Investigation

Background: The diagnosis of autism spectrum disorder (ASD) cases is increasing in Taiwan. Genetic testing for children with ASD offers several potential benefits and is available with out-of-pocket expenses. Parents play a pivotal role in having their children with ASD tested; therefore, understanding their perceptions of, and perceived barriers to genetic testing is vital. Methods: Semi-structured interviews were conducted with 39 parents of children with ASD in Taiwan. Interviews were recorded and transcribed verbatim. NVivo 12 software (QSR International, Doncaster, Australia) was used to facilitate an inductive coding methodology. Results: The majority of participants (74.4%) supported ASD genetic testing for their children with ASD, citing reasons such as clarifying ASD etiology, well-informed family planning, contributing to ASD research, and early ASD detection and intervention. Others indicated that they were either against such testing (17.9%), or unsure (7.7%) about whether to take their children with ASD for genetic testing. Those who were opposed reported that their main concerns related to perceptions of no value of genetic testing, potential for family conflict, and financial difficulties. Conclusions: Most of the parents of children with ASD that we interviewed expressed favorable views of ASD genetic testing. There exists a need to increase parental access to education and counseling, and to include testing coverage in Taiwanese national health insurance.

Pandemic visitor policies: Parent reactions and policy implications.

Pandemic visitor policies: Parent reactions and policy implications.

Surveying family access: kangaroo mother care and breastfeeding policies across NICUs in Italy

BackgroundStudies on the application of developmental care initiatives in Italian NICUs are rather scarce. We aimed to assess parental access to the NICUs and facilities offered to the family members and to test “the state of art” regarding kangaroo mother care (KMC) and breastfeeding policies in level III Italian NICUs.MethodsA questionnaire both in paper and in electronic format was sent to all 106 Italian level III NICUs; 86 NICUs (i.e., 80% of NICUs) were completed and returned.The collected data were analysed. In addition, a comparison between the 2017 survey results and those of two previous surveys conducted from 2001 to 2006 was performed.ResultsIn total, 53 NICUs (62%) reported 24-h open access for both parents (vs. 35% in 2001 and 32% in 2006). Parents were requested to temporarily leave the unit during shift changes, emergencies and medical rounds in 55 NICUs (64%). Some parental amenities, such as an armchair next to the crib (81 units (94%)), a room for pumping milk and a waiting room, were common, but others, such as family rooms (19 units (22%)) and adjoining accommodation (30 units (35%)), were not. KMC was practised in 81 (94%) units, but in 72 (62%), i.e., the majority of units, KMC was limited to specific times. In 11 (13%) NICUs, KMC was not offered to the father. The average duration of a KMC session, based on unit staff estimation, was longer in 24-h access NICUs than in limited-access NICUs. KMC documentation in medical records was reported in only 59% of questionnaires. Breastfeeding was successful in a small proportion of preterm infants staying in the NICU.ConclusionThe number of 24-h access NICUs doubled over a period of 13 years. Some basic family facilities, such as a dedicated kitchen, rooms with dedicated beds and showers for the parents, remain uncommon. KMC and breastfeeding have become routine practices; however, the frequency and duration of KMC sessions reported by NICU professionals still do not meet the WHO recommendations.

Closing Knowledge Gaps Among Parents of Children with Sickle Cell Trait

BackgroundNearly 8% of African Americans carry sickle cell trait (SCT) and approximately 2000 infants in the United States are born with sickle cell disease (SCD) annually. SCT knowledge is necessary for individuals with SCT to make informed reproductive decisions since they are at risk of having children with SCD. Despite state programs that inform parents of their child's SCT status via telephone call, >80% of adults with SCT do not know their status. This may be because many parents have low health literacy (HL), low baseline SCT knowledge, and/or may not achieve high sustained SCT knowledge after non-standardized phone encounters.The SCTaware education program was designed to improve SCT education to close knowledge gaps that may exist after telephone-only education. It also aims to increase parents' SCT status awareness and their ability to inform their affected children in the future.ObjectivesThe objectives of this interim analysis were to assess central Ohio parents' SCT knowledge after being educated about their child's SCT status by telephone (standard of care) and to explore if SCTaware improves parents' knowledge immediately and one month after receiving it.MethodsA multidisciplinary team (hematologists, a genetic counselor, HL experts, SCT educators, parent stakeholders, and visual design experts) developed SCTaware, a videoconference-administered education program that is delivered by a trained educator and includes SCT knowledge objectives, HL-informed communication strategies (e.g., teach-back), visuals scoring highly for understandability, and access to narrated post-education review materials.Through electronic medical record review, we identified English-speaking biological parents of infants with SCT who were informed of their child's SCT by telephone. Adult parents who were able to be contacted by telephone were invited to participate if they did not have SCD or a child with SCD, had not received SCT education in central Ohio for another child, were not (or partner was not) currently pregnant, and had access to an electronic device capable of videoconferencing.After informed consent, parents reported their and their child's SCT status, completed a demographic survey, a HL assessment, and the published Sickle Cell Trait Knowledge Assessment (SCTKA) consisting of eight questions. Participants then received SCTaware and repeated the SCTKA and report of their and their child's SCT status immediately and one month later. SCTKA scores <75% correct were considered low. Data were summarized descriptively. Linear mixed effects models with random intercept for each parent were used to assess scores longitudinally.ResultsOf the 297 children with SCT whose parent received telephone education between March 2020-April 2021, 114 had a parent who was able to be contacted, 22 were ineligible when contacted, and five declined participation because they reported having adequate knowledge. To date, 63 parents have enrolled, 54 have completed baseline surveys (Table 1), 44 have completed SCTaware, and 35 have completed the one-month follow-up.Following telephone education, 44% of participants had high SCT knowledge. Participants' mean SCTKA scores post-telephone education did not significantly differ whether they had received telephone education ≤3 months or >3 months before enrolling in the study (64% correct vs. 71% correct, p=0.30).Of those who had completed SCTaware, 42 (95%) achieved high SCT knowledge immediately after. Of those who have completed the one-month follow-up, 94% continue to have high knowledge. Participants with low HL had significantly lower SCTKA scores post-telephone education but those with high and low HL achieved and maintained high sustained knowledge one month after receiving SCTaware (Figure 1).DiscussionOur interim analysis shows that over half of parents, especially those with low HL, have low SCT knowledge after receiving education by telephone regarding their infant's diagnosis of SCT. SCTaware is a scalable tool that could be widely implemented as an initial program or as a follow-up to telephone education if final analyses confirm that SCTaware leads to sustained knowledge gains. Future studies, however, need to determine parent access to and satisfaction with SCTaware and if individuals use the knowledge gained to inform their reproductive decision-making and to inform their affected children. [Display omitted] DisclosuresNo relevant conflicts of interest to declare.

Patient portals for the adolescent and young adult population: Benefits, risks and guidance for use

Patient portals are the primary means by which electronic health information (EHI) is shared with patients and families. The use of patient portals increased during the COVID-19 pandemic and may continue to rise with the implementation and enforcement of the 21st Century Cures Act that encourages facilitation of access to EHI and prohibits information blocking. Research on the use of patient portals by adolescents and their families is limited. Potential benefits of portal use to adolescents include increased engagement in their own health care, direct communication with their health care clinicians, and facilitation of transition of care to new clinicians in adulthood. Clinicians need to educate adolescents on the functions available through the portal, appropriate use and expectations for messaging through the portal, and the pros and cons of viewing EHI such as test results independently. Parental proxy access to the adolescent's portal should be carefully and thoughtfully implemented, because it poses a potential breach to confidential care via disclosure of sensitive or protected information. Adolescents who choose to deny their parents proxy access to the portal should be supported in that decision. It is important that all clinicians understand portal functionality and have strategies to optimize use within their practice. This paper provides the reader considerations and tips for portal use within this population.

Starting parenting in isolation a qualitative user-initiated study of parents' experiences with hospitalization in Neonatal Intensive Care units during the COVID-19 pandemic.

BackgroundWorldwide, strict infection control measures including visitation regulations were implemented due to the COVID-19 pandemic at Neonatal Intensive Care Units (NICUs). These regulations gave restricted access for parents to their hospitalized infants. The consequence was limited ability to involve in the care of their infants. At Oslo University Hospital entry to NICU was denied to all except healthy mothers in March 2020. The absolute access ban for fathers lasted for 10 weeks. The aim of this study was to explore parental experiences with an infant hospitalized in the NICU during this absolute visitation ban period.MethodsWe invited post discharge all parents of surviving infants that had been hospitalized for at least 14 days to participate. They were interviewed during autumn 2020 using an explorative semi-structured interview approach. Data were analyzed via inductive thematic analysis.ResultsNine mothers and four fathers participated. The COVID-19 regulations strongly impacted the parent’s experiences of their stay. The fathers’ limited access felt life-impacting. Parents struggled to become a family and raised their voices to be heard. Not being able to experience parenthood together led to emotional loneliness. The fathers struggled to learn how to care for their infant. The regulations might lead to a postponed attachment. On the other hand, of positive aspect the parents got some quietness. Being hospitalized during this first wave was experienced as exceptional and made parents seeking alliances by other parents. Social media was used to keep in contact with the outside world.ConclusionsThe regulations had strong negative impact on parental experiences during the NICU hospitalization. The restriction to fathers’ access to the NICU acted as a significant obstacle to early infant-father bonding and led to loneliness and isolation by the mothers. Thus, these COVID-19 measures might have had adverse consequences for families.

Developing Chenopodium ficifolium as a potential B genome diploid model system for genetic characterization and improvement of allotetraploid quinoa (Chenopodium quinoa)

BackgroundQuinoa (Chenopodium quinoa) is a high-value grain known for its excellent nutritional balance. It is an allotetraploid species (AABB, 2n = 4x = 36) formed by the hybridization between AA and BB genome diploid (2n = 2x = 18) species. This study reports genetic studies in Chenopodium ficifolium as a potential B genome diploid model system to simplify the genetic studies of quinoa including gene identification and marker-assisted breeding.ResultsPortsmouth, New Hampshire and Quebec City, Quebec accessions of C. ficifolium were used to develop an F2 population segregating for agronomically relevant traits including flowering time, plant height, the number of branches, branch angle, and internode length. Marker-trait associations were identified for the FLOWERING LOCUS T-LIKE 1 (FTL1) marker gene, where the alternate alleles (A1/A2) were segregating among the F2 generation plants in association with flowering time, plant height, and the number of branches. There was a strong correlation of the flowering time trait with both plant height and the number of branches. Thus, a possible multifaceted functional role for FTL1 may be considered. The parental Portsmouth and Quebec City accessions were homozygous for the alternate FTL1 alleles, which were found to be substantially diverged. SNPs were identified in the FTL1 coding sequence that could have some functional significance in relation to the observed trait variation.ConclusionThese results draw further attention to the possible functional roles of the FTL1 locus in Chenopodium and justify continued exploration of C. ficifolium as a potential diploid model system for the genetic study of quinoa. We expect our findings to aid in quinoa breeding as well as to any studies related to the Chenopodium genus.

Genotyping-By-Sequencing diversity analysis of international Vanilla collections uncovers hidden diversity and enables plant improvement

Genomics-based diversity analysis of natural vanilla populations is important in order to guide conservation efforts and genetic improvement through plant breeding. Vanilla is a cultivated, undomesticated spice that originated in Mesoamerica prior to spreading globally through vegetative cuttings. Vanilla extract from the commercial species, mainly V. planifolia and V. × tahitensis, is used around the world as an ingredient in foods, beverages, cosmetics, and pharmaceuticals. The global reliance on descendants of a few foundational clones in commercial production has resulted in an industry at heightened risk of catastrophic failure due to extremely narrow genetic diversity. Conversely, national and institutional collections including those near the center of cultivation contain previously undiscovered diversity that could bolster the genetic improvement of vanilla and guide conservation efforts. Towards this goal, an international vanilla genotyping effort generated and analyzed 431,204 single nucleotide polymorphisms among 412 accessions and 27 species from eight collections. Phylogenetic and STRUCTURE analysis sorted vanilla by species and identified hybrid accessions. Principal Component Analysis and the Fixation Index (FST) were used to refine relationships among accessions and showed differentiation among species. Analysis of the commercial species split V. planifolia into three types with all V. × tahitensis accessions being most similar to V. planifolia type 2. Finally, an in-depth analysis of V. × tahitensis identified seven V. planifolia and six V. odorata accessions as most similar to the estimated parental genotypes providing additional data in support of the current hybrid theory. The prevalence of probable V. × tahitensis parental accessions from Belize suggests that V. × tahitensis could have originated from this area and highlights the need for vanilla conservation throughout Central and South America. The genetic groupings among accessions, particularly for V. planifolia, can now be used to focus breeding efforts on fewer accessions that capture the greatest diversity.

Development and characterization of a Napier grass (Cenchrus purpureus Schumach) mapping population for flowering‐time‐ and biomass‐related traits reveal individuals with exceptional potential and hybrid vigor

AbstractNapier grass is a tropical perennial C4 grass with superior biomass yield and quality. It is an important forage crop and a promising feedstock for lignocellulosic biofuel production. However, precise phenotyping and genotyping data to support the molecular breeding of Napier grass are scarce. A Napier grass F1 mapping population (segregating pseudo‐F2 population) was generated by hybridizing genetically distant parents (N190 × N122) with contrasting flowering‐time‐ and biomass‐related traits. True F1 hybrids were confirmed with a simple sequence repeat marker, vegetatively propagated, and phenotyped in replicate field plots for 2 years (2 harvests per year) in Citra, FL, USA (29.40N). Near‐normal distributions were observed for flowering date, plant height, number of tillers, stem diameter, and leaf width, confirming the quantitative nature of these traits. The annual dry biomass yield of F1 hybrids varied between 21.0 and 41.1 t ha−1. The highest‐yielding F1 hybrids showed remarkable hybrid vigor exceeding the annual biomass production of the highest‐yielding parental accession (26.9 t ha−1) by 52% and the biomass yield of the control “Merkeron” cultivar (29.2 t ha−1) by 41% over 2 years. F1 hybrids with delayed flowering time along with significantly increased biomass yield were also identified. Late‐flowering accessions allowed maximum biomass harvest before formation and dispersal of seeds, reducing invasion risk. The developed mapping population will be an excellent resource for identifying quantitative trait loci and candidate genes for flowering‐ and biomass‐related traits in Napier grass that will accelerate the improvement of this non‐domesticated bioenergy crop.