Iranian Species Research Articles

Genetic diversity in some domestic and wild sheep and goats in Iran

In present study, genetic diversity of domestic and wild Iranian sheep and goats were evaluated using inbreeding coefficients (FGRM, FHOM and FROH), linkage disequilibrium (LD), and effective population size (Ne). Genomic data of Iranian sheep and goat species were obtained from the NEXTGEN project. Animals consisted of 20 domestic sheep (Ovis aries), 14 wild sheep (Ovis orientalis), 20 domestic goats (Capra hircus) and 18 wild goats (Capra aegagrus). Mutations equivalent to the IlluminaSNPchip50 K were extracted to study mutations for each animal. Based on FGRM, FHOM and FROH, higher rates of inbreeding were observed in wild species than domestic species. Wild sheep had the highest rate of inbreeding among studied populations. Our results showed a decreasing in LD with increasing in distance between pairs of SNPs so that the average LD in short distance was in the range of 0.11−0.12, and in long distance was in the range of 0.091−0.093. The analysis of LD also demonstrated higher genetic diversity in domestic sheep and goat than wild species and wild sheep had the lowest genetic diversity among studied populations. The results indicated that Ne in 13 generations ago was higher in domestic species compared to wild species. In general, present results revealed that wild species had lower genetic diversity compared to the domestic species in Iran. Meanwhile, wild sheep population is in critical conditions from genetic diversity point of view and required more attention. Designing appropriate breeding programs to improve genetic diversity in wild species, especially in wild sheep in Iran is necessary to protect them from extinction.

Cytotoxic and Apoptotic Effect of Iris taochia Plant Extracts on Human Breast Cancer (MCF-7) Cells

Introduction: Iris taochia is an endemic plant in Turkey. Iris species has many biological effects such as antibacterial, antiinflammatory, antioxidant and anticancer properties. Apoptosis is a programmed cell death and this mechanism regulates the death of cancer cells. Purpose: The aim of our work is to investigate how the Iris taochia extracts affect the apoptotic activity in the MCF7 cells. Methods: Cytotoxic dose and cell viability is determined by the MTT assay. Bad, Bax, Bcl-2, Bcl- W, Bid, Bim, Caspase 3, Caspase 8, CD40, CD40L, cIAP-2, CytoC, DR6, Fas, FasL, HSP27, HSP60, HSP70, HTRA, IGF-I, IGF-II, IGFBP-1, IGFBP-2, IGFBP-3, IGFBP-4, IGFBP-5, IGFBP-6, IGF-1sR, Livin, p21, p27, p53, SMAC, Survivin, sTNF-R1, sTNF-R2, TNF-α, TNF-β, TRAILR-1, TRAILR-2, TRAILR-3, TRAILR-4 and XIAP proteins were measured by the membrane array kit. Results: Iris taochia extracts exhibited significant cytotoxic effects on MCF7 cells and IC50 values ranging from 1.56 to 100 μg/mL. Our results indicate that MeOH extract of Iris taochia in MCF7 cells may be a regulator of cell death proteins, cell cycle and growth factors. DCM and EtOH extracts of Iris taochia have a limited effect on MCF7 cells, especially, HSPs, which play a significant role in chemoresistance, downregulating DCM and EtOH extracts of Iris taochia, whereas ligands and receptors of extrinsic apoptotic pathway are upregulated by these extracts. Conclusion: This is the first study to investigate the cytotoxic and apoptotic effect of Iris taochia extracts on MCF7 cells. Results also showed that Iris taochia reduced cell viability and induced apoptotic pathways as a potential regulator of cancer cell death.

New species and records of Neanurinae (Collembola: Neanuridae) from Mazandaran Province (Northeastern Iran), with a key to Iranian species of the subfamily.

Four new species of the subfamily Neanurinae, namely Cryptonura dohezarensis sp. nov., Cryptonura abmalensis sp. nov., Cryptonura sariensis sp. nov. and Neanura persica sp. nov. from different forests in the Northern Iranian province of Mazandaran are described and illustrated. C. dohezarensis sp. nov. is characterized by body without pigment, dorsal tubercles rounded, mandible with 3 teeth, tubercles Cl and Af on head separate, tubercles Di on Th IIIII with 3 chaetae and tubercle L on Abd III with 3 chaetae; C. abmalensis sp. nov.by body with bluish pigment, dorsal tubercles triangular, mandible with 4 teeth, tubercles Cl and Af on head fused, chaetae A on head absent, tubercles L on Abd II and III with 4 chaetae and tubercle De+Dl+L on Abd V with 5 ordinary chaetae; C. sariensis sp. nov.by body with bluish pigment, dorsal tubercles rounded, mandible with 5 teeth, tubercles Cl and Af on head separate and a reduced dorsal chaetotaxy; N. persica sp. nov. belongs to the group of Neanura with ventral chaetae L on Abd V, without chaetae Ocp on the head and tubercles Di on Th I absent, and is characterized by one character unknown in other members of the genus, e.g., the fusion of cephalic tubercles Cl and Af. In addition four other taxa have been found in the same forests: Cryptonura persica Smolis et al., 2012 and three species that may represent new species but there is insufficient material available to prepare full descriptions (one species in the genus Cryptonura, one in Vitronura and one in Endonura). An identification key of the genus and species of Neanurinae recorded so far from Iran is given.

Medicinal Importance of Ajuga Species in Iran: Ethnobotanical and Traditional Applications, Phytochemical, and Pharmacological Studies

Context: Five species of the genus Ajuga (Lamiaceae) having the common name of "bugle" are found in Iran. In Persian medicine (PM), the genus Ajuga (Kamaphytus) is used for treating jaundice, joint pain, gout, amenorrhea, sciatica, and wound healing. This study aimed to review the ethnobotanical, phytochemical, and biological activities of Ajuga species that grow in Iran to determine their therapeutic potentials and suggest further studies on the healing properties of this genus in Iran. Evidence Acquisition: Electronic databases such as PubMed, Scopus, and Google Scholar were comprehensively searched for studies on Ajuga species in Iran, including "Ajuga austro-iranica," "Ajuga chamaecistus," "Ajuga comata" (Syn.: "Ajuga chia," "Ajuga chamaepitys subsp. Chia"), "Ajuga orientalis," and "Ajuga reptans." The search period was from 1966 to February 2021. The related articles were selected according to the inclusion and exclusion criteria of the current study. Results: Several ethnobotanical and pharmacologic reports have verified the traditional uses of the genus Ajuga for anti-inflammatory, hypoglycemic, hypolipidemic, analgesic, anabolic, anti-arthritis, antipyretic, and hepatoprotective activities. Numerous phytochemicals have been identified from Ajuga species involving phytoecdysteroids, neo-clerodane-diterpenes, iridoids, flavonoids, withanolides, phenylethyl glycoside, and essential oils. Conclusions: Due to the beneficial therapeutic effects of Ajuga genus, it can be considered in future clinical studies as a source of natural antioxidants, dietary supplements in the pharmaceutical industry, and stabilizing food against oxidative deterioration.

Species identification and genetic diversity of Alcea (Malvaceae) using SCoT molecular markers: Medicinal plant

The genus Alcea that is a member of Malvaceae family, is a Mediterranean perennial herb with major diversity centers in the Middle East and Western Mediterranean Basin. Alcea is a unique genus with several endemic taxa, and many of these endemic taxa from the Irano-Turanian phytogeographical area are particularly interesting. The genus contains 34 species in Iran, 15 of which are endemic. As a result of the importance of Alcea species, molecular data were collected for this genus in this research. For this study, 83 plants were used, which were randomly obtained from 5 species found in 6 provinces. Genomic DNA Amplification with 5 primers resulted in 75 bands, 66 of which were polymorphic (88.12%). The high average MI and PIC values indicated that SCoT primers have a high capacity for detecting polymorphic loci among the species of Alcea. The range of genetic similarities between 5 collected species was estimated to be between 0.77 and 0.89. The SCoT markers analysis revealed that the species Alcea angulata and Alcea popovii had the least similarity, while Alcea loftusii and Alcea sulphurea had the most similarity. The current study?s objectives are as follows: 1) is it possible to identify Alcea species through SCoT markers, 2) what genetic structure do these species have in Iran, and 3) what is the species inter-relationship? The current research found that SCoT markers can be used to identify the species.

Genetic diversity of Cordia myxa L. assessed by ISSR markers

A large number of species of Cordia (Boraginaceae) are found across the tropical and subtropical parts of the planet. Cordia species are mentioned in popular medicine as being used to cure a variety of ailments affecting a variety of human organs. Population genetic structure, genetic diversity, and phenotypic variation are unknown for this species in Iran. For this reason, we collected morphological as well as molecular data on this plant species, which is significant in its own right. We employed 70 plants that were randomly picked from seven geographical communities spread throughout four provinces to conduct our research. These populations' genetic diversity variables were analyzed. The results of the structure and K-Means grouping analyses indicated the existence of five distinct gene pools in the nation, which were isolated from one another geographically. Genetic and geographical separation were shown to be correlated using the Mantel analysis. Among communities, AMOVA found considerable genetic differences, with within-population variance accounting for around 55% of the overall genetic variability. Upcoming breeding and conservation efforts for this vital medicinal plant in the nation may benefit from these findings.

Exploration and morphologic variation of Iris wild species with ornamental potential

Abstract Nowadays, the flower industry is growing so fast that its development requires introducing new varieties to the flower market. Iran is the habitat of numerous species of wild plants that are among the valuable genetics in the breeding process. The identification of native Iris species, investigation of morphological diversity, and distribution method have a significant effect on the introduction of this flower as new and superior cultivars cut flower and bedding plant. The documentation of the most important habitats of Iris in Arak province, identification of morphological characteristics and correlation determination of morphological traits are the most important aims of this research. The results showed that there is a correlation between some of the traits. The highest positive correlation was related to the height of flower and length of the leaf, length of the flowering stem and the length of the leaf and the height of the flower and the length of the flowering stem. The ecotypes of Iris sp. were divided into six groups. Based on the results of the cluster diagram, the bulbous species were separated from rhizome species. Generally, due to the color diversity of Iris sp. and unique beauty of the flowers and the resistance of the native species, they can be used as native foundations. Due to the prominent traits such as high durability of Iris meda, odor of I. hymernospatha Subsp. leptoneura and color diversity of I. persica, I. songarica and height of I. spuria, they can be used to introduce new ornamental species. Iris spuria is the most suitable genotype because of the high height, large flower, high durability, and beautiful flower.

Species Relationship and Population Differentiation In Stellaria L. (Caryophyllaceae) Of Iran Using Scot Molecular Marker and Morphological Data

Recognition of species is essential in a variety of domains, most remarkably biology, biogeography, ecology, as well as conservation. The genus Stellaria L. (Caryophyllaceae) has over 120 species spread across Europe and Asia's temperate zones. According to the most remarkable current treatments, nine species recognize Stellaria in Iran. These species are categorized into two types. Despite the broad distribution of several Stellaria species in Iran, no research on their genetic variability, method of divergence, or dispersion trends is accessible. As a result, we conducted genetic and morphological research on six Stellaria species and two of their closest relatives gathered from various habitats in Iran. This research aims to 1) Can SCoT markers be utilized to recognize Stellaria species? 2) What are the genetic characteristics of the mentioned taxa in Iran? and 3) To examine the interrelation of the species. In this research, ten SCoT markers were employed for molecular analysis, and 112 accessions were utilized for morphological study. The genetic distances were calculated using the Jaccard similarity coefficient, and descriptive data on the populations were used to estimate genetic parameters. There were 98 polymorphic bands all over. The integration of morphological and SCoT data demonstrated that the Stellaria species of Iran could be delimited and recognized. The Stellaria species are genetically unique; however, they share some similar alleles, according to AMOVA and STRUCTURE analyses. Bangladesh J. Plant Taxon. 28(2): 317-328, 2021 (December)

Isolation, characterization, and antioxidant activity of neutral carbohydrates from Astragalus arbusculinus gum

“Anzaroot” is an exudate gum obtained from Astragalus species in Iran. Plant gum exudates contain hydrophilic biopolymers, and carbohydrates are the most important ingredients in the gums. Carbohydrates possess different biological properties like enhancement of immunity and antioxidant effect. This study aimed to isolate the novel carbohydrates from Astragalus arbusculinus Bornm. & Gauba gum and investigate their monosaccharides composition and antioxidant activity. For this purpose, the crude water-soluble A. arbusculinus extract was fractionated by DEAE-52 column chromatography. The A. arbusculinus carbohydrate (AAC) fraction was analyzed by high-performance liquid chromatography- evaporative light scattering detector (HPLC-ELSD), and eight compounds, including two major, were detected in its chromatogram. Subsequently, preparative-thin layer chromatography (prep-TLC) was used to isolate and purify the two major compounds, named AAC1 and AAC2. The structural features of AAC1 and AAC2 were investigated by a combination of monosaccharide component analysis using fourier-transform infrared spectroscopy (FT-IR), gas chromatography–mass spectrometry (GC–MS), gas chromatography with a flame ionization detector (GC-FID), and matrix-assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF-MS). The results indicated that AAC1 was composed of six monosaccharide components, including glucose, rhamnose, and arabinose, with a relative molar ratio of 4:1:1 and molecular weight 971.4531 Da approved by GC–MS and MALDI-TOF analyses, respectively. Also, AAC2 was composed of six monosaccharide units, including glucose, pinitol, and arabinose, with a relative molar ratio of 4:1:1 and molecular weight of 987.4084 Da. Radical scavenging activity of the two compounds was also evaluated against DPPH.

Collection and evaluation of Iris species in Southwest China

China is known as one of the most diverse centres of wild Iris resources in the world, there are 60 species, 13 varieties, and five forms distributed in southwest, northwest, and northeast China. The goal of this study was to describe the distribution, collection, and evaluation of Iris species collected in southwest China. Wild populations were identified and classified into 23 species, two varieties, and one form based on their morphological characteristics. We discovered some species with new distribution and characteristics. Furthermore, we also used the analytical hierarchy process (AHP) method with 16 indicator points to evaluate the collected Iris resources based on their ornamental value, utilization potential, and ecological adaptability. The results showed that I. pseudacorus, I. delavayi, I. germanica, I. wilsonii, I. sibirica, and I. tectorum had excellent ornamental characters and best suited for sustained exploitation. This research also provided a good theoretical guidance and an important reference value for the application of Iris plants in landscaping and provided suggestions for the conservation and utilization of wild Iris resources.

Modeling habitat suitability of bats to identify high priority areas for field monitoring and conservation.

Bats provide important ecosystem services but face severe threats due to land and climate changes. Although bats are an important component of mammal diversity in Iran, the ecology of many species remains virtually unstudied in the country. Here we applied the maximum entropy approach to model habitat suitability of bat species in Iran, identify the most important variables for their distribution, predict high priority areas for field monitoring and conservation, and estimate the coverage of the bat species' suitable habitats by the existing protected areas. We created a richness map for the twelve species to identify high priority areas for field monitoring and conservation. The results of species distribution modeling showed that Pipistrellus kuhlii (828,977.2 km2) and Miniopterus pallidus (646,581.9 km2) had the largest distribution ranges and Rhinopoma microphyllum (211,202.7 km2) and Rousettus aegyptiacus (218,278.6 km2) had the smallest distribution ranges in Iran. By averaging the importance of each ecological variable across the 12 species, we found that distance to forests (with a negative association) is the most important ecological driver of bat distribution in Iran. The Zagros Mountains were identified as a hotspot of bats based on the distribution of the 12 species. Our findings showed that small proportions of each species suitable habitats were covered by protected areas and protected suitable habitats varied from 3.2%for Pipistrellus kuhlii to15.9% for Tadarida teniotis. This study highlights the importance of forests for bat conservation showing that forest conservation is a high priority in the country. Areas which have the highest richness should be prioritized for field monitoring and conservation.

Susceptibility of iris (Iridaceae) to larval infestation by Neorthacheta dissimilis (Diptera: Scathophagidae)

Abstract Neorthacheta dissimilis Malloch (Diptera: Scathophagidae) is a poorly known scathophagid fly that feeds and develops on iris (Iridaceae). A survey of its occurrence was performed at the Montréal Botanical Garden (Montréal, Québec, Canada) in 2018, 2019, and 2020. Iris species and cultivars from two subgenera, Iris and Limniris, were evaluated for larval infestation. When pooled for subgenera and years, data from 18 Iris classes revealed high levels of infestation per flower stalk, ranging from 34% to 100%. When analysed per bud or flower, levels of infestation remained high, ranging from 19% to 100%, but generally was lower than for flower stalks as the unit of replication. The mean number of N. dissimilis larvae per infested flower or bud was higher for the subgenus Limniris (1.13) than for the subgenus Iris (1.03), with a maximum of four N. dissimilis larvae per flower being observed. These figures are worrying for horticulturalists because the insect is prevalent and causes either abortion or aesthetic damages to iris flowers.

An annotated catalog of Iranian Symphypleona and Neelipleona (Hexapoda: Collembola): new records and key to species

This article provides an annotated catalog of the Symphypleona and Neelipleona (Hexapoda: Collembola) of Iran based on published literature and specimens recently collected from three different ecosystems in North Khorasan province (Forest, Rangeland, and Agricultural) of the years 2018 and 2019. Thirty-five species in seven families and 17 genera are listed. Among them, Megalothorax minimus and Bourletiella sp. are recorded for the first time from Iran. An updated key to the Iranian species and information on the biology and geographical distribution of each species is provided.

Insecticide resistance in field populations of the pear psyllids Cacopsylla permixta and Cacopsylla bidens in Iran

AbstractCacopsylla permixta and Cacopsylla bidens are major pests of pears in Iran. They are commonly sprayed with various insecticides up to 12 times a year but control by these means is no longer reliable, suggesting the evolution of resistance. Here, we report about 60‐fold variation in diazinon susceptibility both among five geographic populations of C. bidens and among three geographic populations of C. permixta, as well as 12‐ to 14‐fold variations in imidacloprid susceptibility in these populations. The levels of resistance to the two compounds were highly correlated in the different populations. Esterase, cytochrome P450, and glutathione S‐transferase activities all varied by about two‐fold among the different populations and were also highly correlated with population resistance to the two insecticides, implying differences in metabolism contribute to the differences in resistance. Bioassays with inhibitors of each class of enzyme indicated all three, but particularly the esterases, contributed to the variation in diazinon resistance, while esterase and, in particular, cytochrome P450 activities contributed to the variation in imidacloprid resistance. The most resistant populations of each species also showed some resistance to chlorpyrifos and acetamiprid, suggesting there may be wide cross resistance to organophosphates and neonicotinoids in these populations. The sampled psyllid populations showed lower levels of resistance to representatives of two other classes of insecticides currently used in Iran, spirotetramat and abamectin, though resistance to spirotetramat was detectable and was correlated with diazinon and imidacloprid resistance across populations. We conclude that metabolic resistance to a range of insecticides is now evolving in field populations of both species in Iran, warranting timely development of resistance management plans.

The comparative study of Alkanna and Huynhia (Boraginaceae, Lithospermeae), with description of a new species in Iran

A new blue to light violet-flowered species from SW Iran is described as Alkanna semiromica. The new species is morphologically close to A. frigida and Huynhia pulchra. Floral characters suggested the affinity of the new species to Huynhia, especially the stamens inserted at different heights in the corolla tube and also the plant trichomes while the pollen characters supported its place within the genus Alkanna. A comparison with the new species and the most similar genera is presented here based on new and old morphological data, to understand the differences among the species. In addition, the diagnostic characters, description, detailed illustrations, and taxonomic comments are presented.

MADS-box transcription factors determine the duration of temporary winter dormancy in closely related evergreen and deciduous Iris spp.

Winter dormancy (WD) is a crucial strategy for plants coping with potentially deadly environments. In recent decades, this process has been extensively studied in economically important perennial eudicots due to changing climate. However, in evergreen monocots with no chilling requirements, dormancy processes are so far a mystery. In this study, we compared the WD process in closely related evergreen (Iris japonica) and deciduous (I. tectorum) iris species across crucial developmental time points. Both iris species exhibit a 'temporary' WD process with distinct durations, and could easily resume growth under warm conditions. To decipher transcriptional changes, full-length sequencing for evergreen iris and short read RNA sequencing for deciduous iris were applied to generate respective reference transcriptomes. Combining results from a multipronged approach, SHORT VEGETATIVE PHASE and FRUITFULL (FUL) from MADS-box was associated with a dormancy- and a growth-related module, respectively. They were co-expressed with genes involved in phytohormone signaling, carbohydrate metabolism, and environmental adaptation. Also, gene expression patterns and physiological changes in the above pathways highlighted potential abscisic acid and jasmonic acid antagonism in coordinating growth and stress responses, whereas differences in carbohydrate metabolism and reactive oxygen species scavenging might lead to species-specific WD durations. Moreover, a detailed analysis of MIKCCMADS-box in irises revealed common features described in eudicots as well as possible new roles for monocots during temporary WD, such as FLOWERING LOCUS C and FUL. In essence, our results not only provide a portrait of temporary WD in perennial monocots but also offer new insights into the regulatory mechanism underlying WD in plants.

Cossidae (Lepidoptera) of Iran: a review with description of two new species.

A taxonomic revision of the Iranian species of the family Cossidae is conducted. Sixthy-nine species and 16 subspecies in 26 genera and five subfamilies, namely Catoptinae, Mehariinae, Stygiinae, Cossinae and Zeuzerinae, are identified. Meharia baluchestana Alipanah Yakovlev, sp. n. and Cossulus kopetdaghensis Yakovlev Alipanah, sp. n. are described. Dyspessa elbursensis derbenti Daniel, 1964 is raised to the species level, Dyspessa derbenti Daniel, 1964, stat. n.; Dieida ledereri (Staudinger, 1817) is considered as the senior synonym of D. persa Strand in Stichel, 1911, syn. n.; Cossus coccus araraticus Teich, 1896 is considered as a senior synonym of C. c. armeniaca Rothschild, 1912, syn. n.; C c. kossai Wiltshire, 1957 as a senior synonym of C. c. omrana Wiltshire, 1957, syn. n.; and Deserticossus arenicola iranica (Austaut, 1897), syn. n. and D. arenicola transcaucasicus (Zukowsky, 1936), syn. n. are newly synonymized with D. arenicola arenicola (Staudinger, 1879). Additionally, the genus Mormogystia Schoorl, 1990, and 15 species, namely Dyspessa alpherakyi (Christoph in Romanoff, 1885), D. artemis Yakovlev, 2008, D. blonda Yakovlev, 2008, D. stroehlei Yakovlev, 2008, D. tsvetaevi Yakovlev, 2008, Barchaniella inspersa (Christoph, 1887), B. sacara (Grum-Grshimailo, 1902), Cossulus intractatus (Staudinger, 1887), C. mollis (Christoph, 1887), C. stertzi (Pngeler, 1899), Deserticossus campicola (Eversmann, 1854), Kotchevnik durelli Yakovlev, 2004, Mormogystia reibellii (Oberthr, 1876), Eremocossus erebuni Yakovlev, 2008 and Phragmataecia turkmenbashi Yakovlev, 2008 are newly reported for the fauna of Iran. Moreover, the hitherto unknown female of Kotchevnik durelli is described. Additional data of the species previously reported from Iran is provided and the collecting data maps of the entire studied species are presented.

Sexual dimorphism in Asaccus nasrullahi Werner, 2006 (Sauria: Phyllodactylidae), from western Iran

The Leaf-Toad Geckos of genus Asaccus are distributed in some parts of the Middle-East characterizing by a the unique characteristic of cloacal sacs and postanal bones absence. The genus Asaccus includes 19 species with at least 10 species in Iran distributing along the Zagros Mountains. Sexual size dimorphism (SSD) is a body size difference between males and females of the same species, being a widespread phenomenon in reptiles. We collected additional specimens of Asaccus nasrullahi (Phyllodactylidae) from four new localities in Ilam and Khuzestan Provinces, western Iran. Sexual dimorphism in Asaccus nasrullahi has not yet been documented. In this study 110 adult specimens of this lizard were examined (for metric and meristic characters). The analyses of morphological data revealed that the males are significantly larger than the females in eight metric characters. There is no significant difference in the rate of tail shedding between the sexes. The range of this species is extended beyond type locality in Lorestan Province into adjacent areas in Ilam and Khuzestan Provinces.

Genetic structure in Louisiana Iris species reveals patterns of recent and historical admixture.

When divergent lineages come into secondary contact, reproductive isolation may be incomplete, thus providing an opportunity to investigate how speciation is manifested in the genome. The Louisiana Irises (Iris, series Hexagonae) comprise a group of three or more ecologically and reproductively divergent lineages that can produce hybrids where they come into contact. We estimated standing genetic variation to understand the current distribution of population structure in the Louisiana Irises. We used genotyping-by-sequencing techniques to sample the genomes of Louisiana Iris species across their ranges. We sampled 20 populations (n = 632 individuals) across 11,249 loci and used Entropy and PCA models to assess population genetic data. We discovered evidence for interspecific gene flow in parts of the range. Our analysis revealed patterns of population structure at odds with widely accepted nominal taxonomy. We discovered undescribed hybrid populations, designated as belonging to the I. brevicaulis lineage. Iris nelsonii shared significant ancestry with only one of the purported parent species, I. fulva, evidence inconsistent with a hybrid origin. This study provides several key findings important to the investigation of standing genetic variation in the Louisiana Iris species complex. Compared to the other nominal species, I. brevicaulis contains a large amount of genetic diversity. In addition, we discovered a previously unknown hybrid zone between I. brevicaulis and I. hexagona along the Texas coast. Finally, our results do not support the long-standing hypothesis that I. nelsonii has mixed ancestry from three parental taxa.

Morphometric study and sexual dimorphism analyses in an Iranian population of Scorpio maurus (Arachnida: Scorpionidae).

Natural selection and sexual selection are cardinal factors in shaping the body of animals such as scorpions. Scorpio maurus (Scorpiones: Scorpionidae) has a worldwide distribution. Sexual dimorphism has been reported from this species in a study in Egypt. Morphometry is used to determine the sexual dimorphism between the two sexes. In the current study, scorpions were collected from six locations of the southern and northern provinces of Fars, Iran. In this study, 53 morphological characters of 15 specimens of each sex of Scorpio maurus were studied based on statistical analyses; however, dimorphism was only observed in 21 morphological characters, including chelicerae and carapace length, pedipalp characters, width of the second segment of metasoma, telson and pectin length, number of left pectin teeth, and some of the leg's segments. It means that these characters are in the control of sexual and natural selection. This study was performed for the first time on Scorpio maurus species in Iran.