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ZAHRA NOORMOHAMMADI
Department of Biology, Islamic Azad University, Sciences and Research Branch, Tehran, Iran
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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Genetic divergence and speciation within Ziziphora capitata (Lamiaceae): Molecular and micromorphological evidences RAHELEH TABARIPOUR; MASOUD SHEIDAI; SEYED MEHDI TALEBI; ZAHRA NOORMOHAMMADI
Biodiversitas Journal of Biological Diversity Vol. 19 No. 2 (2018)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d190250

Abstract

Tabaripour R, Sheidai M, Talebi SM, Noormohammadi Z. 2018. Genetic divergence and speciation within Ziziphora capitata (Lamiaceae): Molecular and micromorphological evidences. Biodiversitas 19: 747-755. Ziziphora capitata is a member of the Mint family (Lamiaceae) that naturally grows in various regions. Different subspecies have been reported for this species, from which two are recorded from Iran: Z. capitata subsp. capitata, and Z. capitata subsp. orientalis. In the present study, morphological, palynological and molecular (ISSR and cp-DNA) data were used to reveal speciation within this species and reconsider taxonomic rank of its presumed subspecies. The obtained results revealed a great difference between two presumed subsp. of Z. capitata. These taxa differed in morphological, palynological and molecular characteristics. Statistical and bioinformatics tests revealed significant genomic difference between them and phylogenetic analyses showed that they have a close affinity to some other Ziziphora species (out-groups used), then to each other. Bayesian and maximum parsimony phylogenetic trees differentiated the presumed sub-species of Z. capitata. Moreover, K-Means clustering and Bayesian analysis of genetic groups by Evanno test (optimal k) supported the presence of two distinct genetic groups within Z. capitata. This approach objectively defines a threshold separating intraspecific population substructure from interspecific divergence, which is the general aim of species delimitation studies. Therefore, the present study provides enough evidence for introducing two separate species within Z. capitata based on the traditional taxonomy as well as combination of molecular and micro-morphological data.
Species relationship and genetic diversity in some Iranian Lamium L. species using ISSR markers FATEMEH AZIMISHAD; MASOUD SHEIDAI; SAYED MEHDI TALEBI; ZAHRA NOORMOHAMMADI
Biodiversitas Journal of Biological Diversity Vol. 20 No. 7 (2019)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d200724

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Abstract. Azimishad F, Sheidai M, Talebi SM, Noormohammadi Z. 2019. Species relationship and genetic diversity in some Iranian Lamium L. species using ISSR markers. Biodiversitas 20: 1963-1972. Lamium is a widespread and taxonomically complex genus of Lamiaceae which comprises of 16-38 species. This genus is represented in Iran by nine species. In the present study, we used morphological and molecular (ISSR, Cp DNA, and nrITS) data to evaluate species relationships, genetic diversity and population genetic structure of the genus. 27 morphological characteristics, including 13 qualitative and 14 quantitative, and ten ISSR markers were used for morphological and genetical evaluation of 73 accessions from eight taxa. In general, species relationships obtained from morphological and molecular data were largely congruent. In the morphological study, characteristics like the life form, leaf shape, absence/existence of bracts and shape of corolla, were distinctive traits and we did not encounter intermediate forms. Our findings indicated a very high efficiency of the ISSR markers in the identification and delimitation of Lamium species. These results confirmed the placement of L. galeobdolon in the genus Lamium and segregation of L. purpureum and L. garganicum in section Lamium. AMOVA analysis revealed that the species of this genus are genetically differentiated. Nm analysis showed very low value of gene flow among the studied species and mantel test indicated isolation by distance occurred among them.
Co-Authors FATEMEH AZIMISHAD MASOUD SHEIDAI MASOUD SHEIDAI RAHELEH TABARIPOUR SAYED MEHDI TALEBI SEYED MEHDI TALEBI