Parent Population Research Articles

English

This study examined the influence of marital communication on the family stability of married teachers in the Nsukka Education Zone of Enugu State. It was guided by two research questions and two hypotheses. The population comprised 1688 married teachers in Nsukka Education Zone secondary schools. A correlation design was adopted for the study. The sample was 455 respondents. Proportionate stratified sampling techniques were used to select the sample from the parent population. The instrument for data collection was a questionnaire. The instrument has been validated by two experts from the Educational Foundations and one from the Faculty of Education, University of Nigeria Nsukka, Measurement and Evaluation. The reliability of the instrument's internal consistency was developed using Cronbach Alpha statistics.  Mean and Standard Deviation were used to answer research questions one while the Pearson product-moment correlation coefficient was used to answer research question two. T-test statistics was used to test the two null hypotheses. There is a significant positive relationship (p < 0.05) between marital communication and family stability of married teachers. Recommendations and implication were made based on the study results. Married teachers should not align family issue to types of communication in the prevailing situation amongst others.   Key words: Marriage, communication, marital communication, family stability, married teacher.

Imbalanced segregation of recombinant haplotypes in hybrid populations reveals inter- and intrachromosomal Dobzhansky-Muller incompatibilities.

Dobzhansky-Muller incompatibilities (DMIs) are a major component of reproductive isolation between species. DMIs imply negative epistasis and are exposed when two diverged populations hybridize. Mapping the locations of DMIs has largely relied on classical genetic mapping. Approaches to date are hampered by low power and the challenge of identifying DMI loci on the same chromosome, because strong initial linkage of parental haplotypes weakens statistical tests. Here, we propose new statistics to infer negative epistasis from haplotype frequencies in hybrid populations. When two divergent populations hybridize, the variance in heterozygosity at two loci decreases faster with time at DMI loci than at random pairs of loci. When two populations hybridize at near-even admixture proportions, the deviation of the observed variance from its expectation becomes negative for the DMI pair. This negative deviation enables us to detect intermediate to strong negative epistasis both within and between chromosomes. In practice, the detection window in hybrid populations depends on the demographic scenario, the recombination rate, and the strength of epistasis. When the initial proportion of the two parental populations is uneven, only strong DMIs can be detected with our method unless migration prevents parental haplotypes from being lost. We use the new statistics to infer candidate DMIs from three hybrid populations of swordtail fish. We identify numerous new DMI candidates, some of which are inferred to interact with several loci within and between chromosomes. Moreover, we discuss our results in the context of an expected enrichment in intrachromosomal over interchromosomal DMIs.

Assessment of fitness traits of pure and mixed crosses of Mastrus ridens populations to improve classical biological control of codling moth

Populations of natural enemies in classical biological control programs often undergo recurring bottlenecks during importation and rearing, which can result in lower genetic variability and fitness.Enriching colonies with wild individuals, multiple importations or combining populations from different origins may help reduce this problem. Mastrus ridens (Hymenoptera: Ichneumonidae), a gregarious idiobiont ectoparasitoid of codling moth (Cydia pomonella) larvae was introduced to New Zealand from laboratory colonies dating to the 1990s. To improve populations for release, individuals from a most recent collection were imported from Chile (CL). Tests were conducted to measure genetic diversity of the parental populations (F0) and fitness traits of pure and mixed combinations of NZ and CL populations for F0 and the F1 generations. Results showed several effects depending on the population origin. CL females and males in the F0 generation lived longer than NZ females and males. Offspring from a CL mother lived longer than those from a NZ mother, and F0 and F1 females from a CL mother parasitized more larvae than females from a NZ mother. Genetic diversity estimates of F0 CL and NZ populations were 24% and 17% heterozygosity, respectively, and the NZ population had a larger proportion of diploid males than the CL population. Thus, no improvement in reproductive output resulted by mixing NZ and CL populations, as hypothesized, but a maternal effect was found in this species. This study shows the importance of understanding and tracking imported populations' genetic diversity and fitness traits in classical biological control programs.

Mapping the sex determination region in the Salix F1 hybrid common parent population confirms a ZW system in six diverse species.

Within the genus Salix, there are approximately 350 species native primarily to the northern hemisphere and adapted to a wide range of habitats. This diversity can be exploited to mine novel alleles conferring variation important for production as a bioenergy crop, but also to identify evolutionarily important genes, such as those involved in sex determination. To leverage this diversity, we created a mapping population by crossing 6 Salix species (Salix viminalis, Salix suchowensis, Salix integra, Salix koriyanagi, Salix udensis, and Salix alberti) to common male and female Salix purpurea parents. Each family was genotyped via genotyping-by-sequencing and assessed for kinship and population structure as well as the construction of 16 backcross linkage maps to be used as a genetic resource for breeding and selection. Analyses of population structure resolved both the parents and F1 progeny to their respective phylogenetic section and indicated that the S. alberti parent was misidentified and was most likely S.suchowensis. Sex determining regions were identified on Salix chromosome 15 in the female-informative maps for seven of the eight families indicating that these species share a common female heterogametic ZW sex system. The eighth family, S. integra × S. purpurea, was entirely female and had a truncated chromosome 15. Beyond sex determination, the Salix F1 hybrid common parent population (Salix F1 HCP) introduced here will be useful in characterizing genetic factors underlying complex traits, aid in marker-assisted selection, and support genome assemblies for this promising bioenergy crop.

Determinants of COVID-19 Vaccine Uptake in Adolescents 12-17 Years Old: Examining Pediatric Vaccine Hesitancy Among Racially Diverse Parents in the United States.

As of December 8, 2021, 9.9 million U.S. adolescents ages 12–17 years old remain unvaccinated against COVID-19 (SARS-CoV-2) despite FDA emergency approval of the Pfizer-BioNTech COVID-19 vaccine for use among this age group in May 2021. A slow-down in adolescent vaccine uptake and increased likelihood of hospitalization among unvaccinated youth highlight the importance of understanding parental hesitancy in vaccinating their adolescent children against COVID-19. Racial/ethnic disparities in pediatric COVID-19 infection and hospitalization further underscore the need to examine parental vaccine acceptance and hesitancy among diverse U.S. parent populations. In October 2021, 242 Hispanic and non-Hispanic Asian, Black, and White parents of adolescents ages 12–17 years participated in a national online survey assessing determinants of COVID-19 pediatric vaccine hesitancy. Compared to Asian, Black, and Hispanic parents, non-Hispanic White parents reported reduced odds of having vaccinated their adolescent. Bivariate analyses and a multivariable binomial logistic regression indicated that identification as non-Hispanic White, parental COVID-19 vaccine status and safety measures, COVID-19 misconceptions, general vaccine mistrust and COVID-19 related collectivist and individualist attitudes accounted for 45.5% of the variance in the vaccine status of their adolescent children. Our findings draw attention to the urgent need to consider the COVID-19 beliefs, attitudes, and behaviors of parents from diverse racial/ethnic groups in developing population tailored public health messaging to increase adolescent COVID-19 vaccine uptake.

Mobilizing Forward: An Interpretive Description of Supporting Successful Neonatal Intensive Care Unit-To-Home Transitions for Adolescent Parents.

Pregnancy and parenting in adolescence and the transition home following the hospitalization of an infant in the neonatal intensive care unit (NICU) are two relatively complex phenomena; and whilst each have been consistently explored within the relevant literature, little is understood about the care required when they intersect. Using interpretive description methodology to guide our exploration, we conducted semi-structured interviews with 23 expert providers caring for adolescent parents involved in NICU-to-home transitions to describe this process in their practice. Findings suggest that supporting successful NICU-to-home transitions for adolescent parents relied strongly on understanding the impact of the NICU experience, establishing therapeutic relationships and facilitating supportive partnerships between the NICU and parents as well as the NICU and supportive services post-discharge. Findings highlight the opportunity for more integrated models of care within the NICU and extending into the community to address the complex biopsychosocial care needs of this parent population.

Comparison of immune defense and antioxidant capacity between broodstock and hybrid offspring of juvenile shrimp (Macrobrachium nipponense): Response to acute ammonia stress

Ammonia is a major environmental pollutant in the aquatic system that poses a great threat to the health of shrimp. Macrobrachium nipponense, as one of the large-yield farmed shrimp, is facing germplasm degradation. Genetic improvement through hybridization is one of the effective methods to solve this problem. However, there are few studies on the effects of ammonia nitrogen on the germplasm resources of M.nipponense. In this study, the broodstock populations (Dianshan, DS) and hybrid offspring (DS ♀×CD [Changjiang, CJ ♂×Dongting, DT ♀], SCD) were exposed to 0, 5, or 20mg/L of ammonia for 96h. The survival rate of the SCD group was greater than the DS group, although there were no significant differences in weight gain rate and length gain rate (p>0.05). The number of positive cells and apoptosis rates in the DS group were significantly greater than in the SCD group after ammonia exposure (p<0.05). As the ammonia concentration increased, the antioxidant enzyme activities in the SCD group were significantly higher than DS group, while the hepatotoxicity enzyme activities in the SCD group were significantly lower than DS group (p<0.05). The trends in the expression of antioxidant- and immune-related genes were generally consistent with the activities of antioxidant enzymes. Our study found that the hybrid population had stronger stress resistance than their parent populations at the same ammonia concentration. This study confirms our speculation that hybrid population has a greater advantage in antioxidant immunity, which also provides reference for the follow-up study of chronic ammonia toxicity.

How many children are exposed to at-risk parental gambling in Australia? Results from a representative national sample

Children of problem gamblers are at risk of harm, however, there are no population level estimates as to how many children are currently exposed to parental problem- and at-risk gambling. The current study analysed data from the Household, Income and Labour Dynamics in Australia (HILDA) Survey, a nationally representative survey, to derive the first ever national estimates of the proportion of problem, moderate, and low risk gamblers (as measured by PGSI) in the Australian parent population. It also reports how many children under 15 years of age in Australia are exposed to parental gambling across the gambling risk categories. The results show that 13.7% of all Australian families with dependent children are currently exposed to some level of gambling risk due to parental gambling, and nearly 4% of families with children are exposed to parental moderate risk or problem gambling. This corresponds to almost 200,000 children each year. The results and approach of this study will guide future examination of child wellbeing in families where parents experience problems with gambling. The results are discussed in the context of public health approaches to familial gambling harm.

Metallicity estimation of core-collapse Supernova H iiregions in galaxies within 30 Mpc

ABSTRACTThis work presents measurements of the local H ii environment metallicities of core-collapse supernovae (SNe) within a luminosity distance of 30 Mpc. 76 targets were observed at the Isaac Newton Telescope and environment metallicities could be measured for 65 targets using the N2 and O3N2 strong emission line method. The cumulative distribution functions (CDFs) of the environment metallicities of Type Ib and Ic SNe tend to higher metallicity than Type IIP, however Type Ic are also present at lower metallicities whereas Type Ib are not. The Type Ib frequency distribution is narrower (standard deviation ∼0.06 dex) than the Ic and IIP distributions (∼0.15 dex) giving some evidence for a significant fraction of single massive progenitor stars; the low metallicity of Type Ic suggests a significant fraction of compact binary progenitors. However, both the Kolmogorov–Smirnov test and the Anderson–Darling test indicate no statistical significance for a difference in the local metallicities of the three SN types. Monte Carlo simulations reveal a strong sensitivity of these tests to the uncertainties of the derived metallicities. Given the uncertainties of the strong emission methods, the applicability of the tests seems limited. We extended our analysis with the data of the Type Ib/Ic/IIP SN sample from Galbany et al. The CDFs created with their sample confirm our CDFs very well. The statistical tests, combining our sample and the Galbany et al. sample, indicate a significant difference between Type Ib and Type IIP with &amp;lt;5 per cent probability that they are drawn from the same parent population.

Modified quasispecies model: the analysis of a periodic therapy.

We propose a modified mathematical model of the quasispecies type to analyze an unstable tumor progression evolution. In our study, we consider a heterogeneous population with different individuals, generated by the accumulation of successive mutations. Our model's main feature is that it allows for variable growth rates for each subpopulation and takes into account mutations from nonconsecutive types of mutants. Bifurcations and linear stability of the steady states are analyzed. We focus on two equilibria; one of them implies the coexistence of anomalous growth and genetically unstable cells. The other one yields the dominance of the anomalous growth population and the extinction of the malignant cells. However, linear stability analysis of the second equilibrium is inconclusive and suggests a suitable environment for the study of periodic therapy. This is carried out by introducing a small perturbation modeling the effect of a periodic medical treatment. As a result, a Zero-Hopf periodic orbit is identified, showing a cyclic behavior among the populations, with a strong dominance of the parental anomalous growth cell population.

Effect of Parental Unemployment on Academic Performance of Secondary School Students in Nigeria

This paper examines the effect of parental unemployment on academic performance of secondary school students. Thus, the efficacy of parental unemployment is perilous social problem which contributed to the inability of many parents to caring for their children education. However, the challenges of unemployed parents contributed to the high rate of step—down many students in secondary education. Consequently, there some factors which contributes to unemployed parents in country such as shortage of industries, inexperience of people, unskilled labour and unavailable of firms. Moreover, thousands of embody men and women are unemployed in Nigeria. However they are seeking for employment opportunities, but the job is not available for them that was the reason many parents are jobless and they cannot provide their childern education pre-requisite, while some parents are not ready to work that is reason they are jobless and find it cumbersome to care for their children education. Presently, thousands of secondary school students involved various bad activities such prostitution, Yahoo, kidnapping, stealing, and other relevant offences in our country, because of inability of their parents to send them to secondary education . Yet, unemployment cause high rate of poverty which affected many patents in thirty- six states of federation includes Abuja the federal capital of Nigeria. However, the rate of drop out increasing daily basis because their parents could not perform their responsibility as parenting who have devoted to caring for their children education. Moreover, the population of unemployed parents is too high in Nigeria .

Relationships between parental borderline symptom severity, empathy, parenting styles and child psychopathology

ABSTRACT Objectives Children of parents diagnosed with borderline personality disorder (BPD) are at greater risk of psychopathology compared to children of healthy controls and parents diagnosed with another mental illness. Parental and child psychopathology are likely to be related via multiple pathways. The current study explored relationships between parental borderline symptom severity, parental empathy, parenting style, and child psychopathology. Methods Parents diagnosed with BPD were recruited to participate in an anonymous online survey. Sixty-four parents completed questionnaires assessing borderline symptom severity, parental empathy, and parenting style. Parental reports of child psychopathology were obtained for 64 children (aged 4–17) utilising the Strengths and Difficulties Questionnaire. Spearman’s rank correlation coefficients were calculated to investigate the relationships between variables. Two three-path serial mediation models were tested. Results Parental borderline symptom severity was negatively associated with parental empathy, and positively associated with maladaptive parenting styles. Parental borderline symptom severity was related to child psychopathology via two indirect pathways 1) authoritarian parenting style and 2) through parental empathy’s relationship with authoritarian parenting. Conclusions Future research is recommended to develop and evaluate parenting programme for parents experiencing borderline symptoms and their school-aged children. KEY POINTS What is already known about this topic: While many people with borderline symptoms are capable parents, difficulties in some domains of parenting have been identified. The extant literature has a heavy focus on the perinatal period while studies of school-aged children of parents with borderline symptoms are limited. Evidence regarding the effectiveness of interventions specific to this population of parents and children remains a gap in the literature. What this topic adds: Borderline symptom severity was related to child psychopathology via parental empathy’s association with authoritarian parenting. Children of parents who experience severe borderline symptoms may benefit from screening for internalising and externalising symptoms to aid early intervention. Interventions for this specific cohort of parents and children may consider parental psychopathology, parental empathy and maladaptive parenting styles as treatment targets.

Predictors of parent's knowledge of hospital-based pediatric falls.

This study aimed to validate and to determine the individual characteristics and demographic factors associated with parents' knowledge of hospital-based pediatric falls and to identify parent populations more likely to report low levels of falls-related knowledge. Validation of a questionnaire and a cross-sectional survey design. Parents (n = 200) of hospitalized children admitted to a tertiary specialist pediatric hospital in Australia completed an online questionnaire. Parents were asked to rate their hospital-based falls knowledge using a Likert scale (1-5). The questionnaire was administered to parents across six hospital wards, 1 day a week, from May to August 2019. Validation of the questionnaire involved factor analyses and reliability tests. Finally, descriptive analysis measured parents' knowledge, and a multivariate logistic regression analysis reported factors associated with parents' falls knowledge. All data were analyzed in Statistical Package for the Social Sciences (V27). Ethical approval was received for all stages. The final version of the parent knowledge of falls (PKOF) questionnaire consisted of 23 questions across five domains (Cronbach α = .929-.70). Parents' knowledge of hospital-based falls ranged from 2.5 to 4.5,while knowledge that children may fall during parental presence rated the lowest score. Knowledge of inpatient falls was higher if their child had a high risk of falls (odds ratio [OR]: 2.1, p = .04) and they were Australian-born parents (OR: 1.9, p = .05). The PKOF questionnaire is an evidence-based instrument developed for a pediatric hospital setting. Findings highlight knowledge gaps and parent groups with the highest risk of having inadequate hospital-based falls knowledge. The questionnaire enables pediatric nurses and educators to measure parents' knowledge of hospital-based falls accurately and consistently, and so to identify gaps and, subsequently, develop, implement, and evaluate falls education using an evidence-based approach.

Genome-Wide Assessment of a Korean Composite Pig Breed, Woori-Heukdon.

A Korean synthetic pig breed, Woori-Heukdon (WRH; F3), was developed by crossing parental breeds (Korean native pig [KNP] and Korean Duroc [DUC]) with their crossbred populations (F1 and F2). This study in genome-wide assessed a total of 2,074 pigs which include the crossbred and the parental populations using the Illumina PorcineSNP60 BeadChip. After quality control of the initial datasets, we performed population structure, genetic diversity, and runs of homozygosity (ROH) analyses. Population structure analyses showed that crossbred populations were genetically influenced by the parental breeds according to their generation stage in the crossbreeding scheme. Moreover, principal component analysis showed the dispersed cluster of WRH, which might reflect introducing a new breeding group into the previous one. Expected heterozygosity values, which were used to assess genetic diversity, were .365, .349, .336, .330, and .211 for WRH, F2, F1, DUC, and KNP, respectively. The inbreeding coefficient based on ROH was the highest in KNP (.409), followed by WRH (.186), DUC (.178), F2 (.107), and F1 (.035). Moreover, the frequency of short ROH decreased according to the crossing stage (from F1 to WRH). Alternatively, the frequency of medium and long ROH increased, which indicated recent inbreeding in F2 and WRH. Furthermore, gene annotation of the ROH islands in WRH that might be inherited from their parental breeds revealed several interesting candidate genes that may be associated with adaptation, meat quality, production, and reproduction traits in pigs.

Adaptive divergence and the evolution of hybrid trait mismatch in threespine stickleback.

Selection against mismatched traits in hybrids is the phenotypic analogue of intrinsic hybrid incompatibilities. Mismatch occurs when hybrids resemble one parent population for some phenotypic traits and the other parent population for other traits, and is caused by dominance in opposing directions or from segregation of alleles in recombinant hybrids. In this study, we used threespine stickleback fish (Gasterosteus aculeatus L.) to test the theoretical prediction that trait mismatch in hybrids should increase with the magnitude of phenotypic divergence between parent populations. We measured morphological traits in parents and hybrids in crosses between a marine population representing the ancestral form and twelve freshwater populations that have diverged from this ancestral state to varying degrees according to their environments. We found that trait mismatch was greater in more divergent crosses for both F1 and F2 hybrids. In the F1, the divergence–mismatch relationship was caused by traits having dominance in different directions, whereas it was caused by increasing segregating phenotypic variation in the F2. Our results imply that extrinsic hybrid incompatibilities accumulate as phenotypic divergence proceeds.

Vibrio harveyi Exhibits the Growth Advantage in Stationary Phase Phenotype during Long-Term Incubation.

ABSTRACTThe bioluminescent marine bacterium Vibrio harveyi can exist within a host, acting as a mutualist or a parasitic microbe, and as planktonic cells in open seawater. This study demonstrates the ability of V. harveyi populations to survive and adapt under nutrient stress conditions in the laboratory, starting in an initially rich medium. V. harveyi populations remain viable into long-term stationary phase, for at least 1 month, without the addition of nutrients. To determine whether these communities are dynamic, populations were sampled after 10, 20, and 30 days of incubation and examined for their competitive ability when cocultured with an unaged, parental population. While populations incubated for 10 or 20 days showed some fitness advantage over parental populations, only after 30 days of incubation did all populations examined outcompete parental populations in coculture, fully expressing the growth advantage in stationary phase (GASP) phenotype. The ability to express GASP, in the absence of additional nutrients after inoculation, verifies the dynamism of long-term stationary-phase V. harveyi populations, implies the ability to generate genetic diversity, and demonstrates the plasticity of the V. harveyi genome, allowing for rapid adaptation for survival in changing culture environments. Despite the dynamism, the adaptation to the changing culture environment occurs less rapidly than in Escherichia coli, possibly due to Vibrio harveyi’s lower mutation frequency.IMPORTANCE Vibrio harveyi populations exist in many different niches within the ocean environment, as free-living cells, symbionts with particular squid and fish species, and parasites to other marine organisms. It is important to understand V. harveyi’s ability to survive and evolve within each of these niches. This study focuses on V. harveyi’s lifestyle outside the host environment, demonstrating this microbe’s ability to survive long-term culturing after inoculation in an initially rich medium and revealing increased competitive fitness correlated with incubation time when aged V. harveyi populations are cocultured with unaged, parental cultures. Thus, this study highlights the development of the growth advantage in stationary phase (GASP) phenotype in V. harveyi populations suggesting a dynamic population with fluctuating genotype frequencies throughout long-term, host-independent incubation.

“I Had to Figure It Out”: A Case Study of How Community College Student Parents of Color Navigate College and Careers

Objective: Community colleges, which can lead students to job opportunities and well-paying careers, are one of the main entry points to higher education for student parents. We use a conceptual framework that bridges career capital and community cultural wealth to understand student parents’ college and career trajectories. This study asks (a) How do student parents of color navigate community college? (b) How do student parents of color make educational and career decisions?, and (c) What, if any, institutional resources do student parents of color utilize to learn about career planning and workforce transition resources at their campus? Method: This qualitative case study draws from individual and focus group interviews with 67 student parents of color to better understand how they tap into their cultural knowledge and lived experiences to navigate college and make career decisions. Results: Data speaks to (a) student parents’ difficulty maneuvering life as a college student and parent; and (b) the importance of students’ familial and institutional support networks as they seek college and career information. Contributions: We hope these findings will encourage community colleges to (re)consider their current practices relating to the student parent population which includes identifying and tracking student parents, implementing guided pathways with their unique needs in mind, communicating services offered to student parents, and creating a more welcoming environment for students and their families.

Complex chronic conditions among children born to women with schizophrenia

PurposeMaternal schizophrenia is linked to complications in offspring near the time of birth. Whether there is also a higher future risk of the child having a complex chronic condition (CCC) – a pediatric condition affecting any bodily system expected to last at least 12 months that is severe enough to require specialty care and/or a period of hospitalization – is not known. MethodsIn this population-based health administrative data cohort study (Ontario, Canada, 1995–2018), the risk for CCC was compared in 5066 children of women with schizophrenia (the exposed) vs. 2,939,320 unexposed children. Adjusted hazard ratios (aHR) were generated for occurrence of any CCC, by CCC category, and stratified by child sex, and child prematurity. ResultsCCC was more frequent in the exposed (7.7 per 1000 person-years [268 children]) than unexposed (4.2 per 100 person-years [124,452 children]) – an aHR of 1.25 (95% CI 1.10–1.41). aHRs were notably higher in 5 of 9 CCC categories: neuromuscular (1.73, 1.28–2.33), cardiovascular (1.94, 1.64–2.29), respiratory (1.83, 1.32–2.54), hematology/immunodeficiency (2.24, 1.24–4.05) and other congenital or genetic defect (1.59, 1.16–2.17). The aHR for CCC was more pronounced among boys (1.32, 1.13–1.55) than girls (1.16, 0.96–1.40), and of similar magnitude in term (1.22, 1.05–1.42) and preterm infants (1.18, 0.95–1.46). ConclusionsThe risk for a CCC appears to be higher in children born to women with schizophrenia. This finding introduces opportunities for targeted preconception counselling, optimization of maternal risk factors, and intervention to support a vulnerable parent population who will experience unique challenges caring for a child with CCCs.

Genetic diversity of indigenous guinea fowl (Numida meleagris) using microsatellite markers in northern Togo.

Indigenous guinea fowl is an important animal resource for improving rural household income. In order to provide molecular data for a sustainable management of this poultry resource, an assessment of the genetic diversity and phylogenic relationships was undertaken on seven guinea fowl phenotypes from two agroecological zones (Dry Savannah and Atakora) of Togo. Genotyping was carried out using 18 microsatellite markers on 94 individuals from Dry Savannah (59) and Atakora (35) zones. The results obtained showed a high genetic diversity, with six as an average alleles per locus and an observed heterozygosity of 0.512. However, the FIS values varied from 0.047 (Lavender) to 0.257 (Albino), reflecting a deficit of heterozygotes, which suggests low to moderate inbreeding levels. The genetic distances between phenotypes are low, ranging from 0.0068 (Bonaparte-Pearl grey) to 0.1559 (Lavender-Albino), unlike the strong genetic identities that reflect a strong genetic similarity between the seven phenotypes of indigenous guinea fowl studied. These results indicate the existence of a single indigenous guinea fowl population, derived from three probable parental populations, with a high within population genetic diversity (phenotypic or agroecological zone). These results could be of use to conservation and improvement programs aiming at the maintenance and sustainable exploitation of this important socio-cultural and economic resource in Togo.

العلاقة بين الثقافة التنظيمية و الرقابة الإدارية في البنك العقاري التجاري 2003-2008 م

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