Showing 4 results for Phylogeny
Hiva Feizi, Nastaran Heidari, Nasrollah Rastgar Pouyani, Eskandar Rastgar Pouyani,
Volume 3, Issue 2 (9-2016)
Abstract
Phylogenetic relationships among the Eumeces schneiderii princeps and Eumeces schneiderii pavimentatus investigated using 509 bp partial sequences of 16S mitochondrial gene. Analyses were done by maximum-likelihood (RAxML) criteria on 52 specimens from over 20 geographically distinct localities. Our molecular results proposed two well-supported major clades by their phylogenetic positions, genetic differences and unique characterizations in their morphology and habitats including: (1) Eumeces schneiderii princeps+ Eumeces schneiderii pavimentatus (2) Eurylepis (3) Scincus and (4) Scincopus. However, the phylogenetic affinities of Eumeces sp. in the Scincus clade were not resolved. Phylogenetic analyses of the genus did not grouped Eurylepis with Eumeces and clustered it in a completely separate group . In addition, phylogenetic resultsrevealed a monophyletic status for Eumeces schneideri
Mansour Mirtadzadini , Firouzeh Bordbar, Mohammad Reza Parishani, Ernst Vitek, Mohammad Reza Rahiminejad,
Volume 5, Issue 3 (12-2018)
Abstract
The current investigations suggest the segregation of Jurinea cartilaginea from Jurinea, and its placement among Centaureinae. Molecular studies, based on the nuclear ribosomal internal transcribed spacers (nrITS), chromosome number data and pollen morphology, support the morphological results. Based on these results, J. cartilaginea is related to and, therefore, transferred to the genus Karvandarina. Due to the morphological characters differing from Karvanderina aphylla, a new subgenus, Pseudojurinea, is described. Molecular study also supports the monophyly of Jurinea.
Seyedeh Zahra Mousavi Parsaii, Jamil Vaezi, Hamid Ejtehadi, Farshid Memariani, Mohammad Reza Joharchi,
Volume 7, Issue 4 (12-2020)
Abstract
Phelipanche pouyanii is described here as a new species from South Khorassan Province, East of Iran. Its diagnostic morphological features are the calyx teeth being far longer than the calyx tube and staminal filaments being glabrous. These characters clearly differentiated the new species from its closely related taxa, i.e., P. mutelii, P. angustelaciniata and P. nana. Results obtained from the pollen and seed micromorphological characters showed no significant taxonomic value in the delimitation of the new species from its closely related species. The internal transcribed spacer (ITS) sequences, however, showed sufficient differences to delineate the new species from its closely related species.
Yasaman Salmaki, Mahya Khakpash,
Volume 10, Issue 2 (9-2023)
Abstract
Stachys sect. Satureoides includes four species characterized by being annual herbs having oblanceolate leaves, urceolate calyx in fruit and dense hairs at mouth and are distributed from Eastern and Southern Turkey, Syria, Northern Iraq to Western Iran. The main aim of present study is to determine the phylogenetic placement of S. sect. Satureoides based on Stachys melampyroides, as the only representative of this section in Iran. The present molecular study was conducted based on nuclear ribosomal ITS marker, using Maximum Parsimony and Bayesian Inference analyses. In total, 86 accessions (including nine outgroups and 77 ingroups) were included. Our results demonstrated that sect. Satureoides was placed in Olisia clade which is one of the most heterogenous and taxonomically challenging clades of Stachys as a paraphyletic genus. Moreover, not only sect. Satureoides was not found to be phylogenetically close to sect. Neurocalyx, as had been suggested by previous morphological studies, but also it was placed as a sister group of sect Fragilicaulis which was characterized by chasmophilus species with fragile stems and yellow flowers. Our results revealed that sect. Neurocalyx could be the closest group to the Satureoides+Fragilicaulis clade. In addition, based on the nrITS phylogenetic tree, annual species of Stachys showed affinity to perennial Stachys species. Hence, it seems that “Annual habit” have been evolved among their perennial ancestors, independently.
