![]() ![]() Psammiris and determine the taxonomic statuses of I. tigridia using four cpDNA regions (2) elucidate the phylogenetic relationships within I. In the framework of the taxonomic research carried out on Iris, the objectives of the present study are as follows: (1) clarify the phylogenetic relationships of I. As in our previous publications, in the present study, we focused on nucleotide sequences of four cpDNA noncoding regions ( trnH-psbA, rps4-trnS GGA, trnS-trnG, and trnL-trnF) that proved to be useful as phylogenetic markers and that we widely applied to assess interspecific relationships in I. A combination of trnH-psbA and trnL-trnF was previously proposed as the core barcode for plants. ![]() Psammiris systematics, although only to a limited extent. A few studies based on cpDNA data have examined the relationships between different taxa within Iris, including psammirises, and elucidated the I. In view of all the above facts, a molecular study would be a great contribution to understanding the taxonomic composition and phylogenetic relationships among the I. It is a distinct species characterized by a two-flowered stem and is narrowly endemic to China, distributed in Gansu and Qinghai provinces. ivanovae, both with single-flowered stems, belong to I. Despite the considerations mentioned above, it was stated that I. Psammiris is a monophyletic taxon when I. Nevertheless, a recent study confirmed that I. Subsequently, however, the specimen cited as āā¦ R01-18ā in references was interpreted as a misidentification with I. Other molecular studies also supported the inclusion of I. ivanovae formed a sister group with psammirises. In a phylogenetic study of Siberian irises, I. tigridia ( Figure 1iām) has been included in I. Phylogenetic analyses of the Iris species based on cpDNA sequence data have shown that I. psammocola remain in question and require further studies, since their identity to I. In our opinion, the Russian populations of I. potaninii from eleven localities in the Altai Republic, from the Republic of Buryatia, from the Republic of Tuva, and the Zabaykalsky Krai. The same chromosome number has been reported for I. ![]() potaninii and has a chromosome number of 2 n = 22. psammocola occurs only on sandy arrays and has a disjunctive distribution range in Central Asia. psammocola was reported from the Altan-Els sand dune region of the Borig-Del-Els sandy areas, the Mongolian part of the Uvs Lake Basin. arenaria Doronkin, described from Kyakhtinsky District, southern Republic of Buryatia, Russia, was synonymized with I. potaninii, from the Tsugeer-Els area, a sand cluster of the Ubsunorskaya Kotlovina Biosphere Reserve, southeastern Republic of Tuva, Russia. It has been accepted in the botany databases. Iris psammocola, a little-known species, was described by Yu-Tang Zhao on the basis of a single specimen collected in the vicinity of Baijiatan, Ningxia Hui Autonomous Region, China. Despite this recent advancement in the knowledge of the section, there are still numerous uncertainties regarding its taxonomic composition and systematics. Currently, the section comprises eight species including the recently described I. Taylor eventually re-established psammirises at the section level, which was subsequently supported by the authors of. Lawrence placed some of psammirises in I. Pogoniris (Spach) Baker, which was supported in references. Psammiris Spach for plants with helically twisted withering flowers and arillate seeds however, Baker transferred it to I. This group was established by Spach as I. Psammiris, including notes on the types updated information on species synonymy, distributions, habitats, and chromosome numbers and a new identification key to the species. We provide a revised taxonomic treatment for I. In addition, the taxonomic statuses of I. vorobievii and two unispecific series ( I. Psammiris recognizes three series: an autonymic series with I. The phylogenetic reconstructions based on sequence variation of four noncoding chloroplast DNA regions support the monophyly of I. Psammiris species to elucidate the taxonomic composition and relationships within the section. In the framework of Iris systematics, we conducted molecular and morphological analyses of the currently recognized I. The systematics of the section are currently based on morphology, and the phylogenetic relationships within it still remain unclear. Psammiris comprises rhizomatous perennials distributed in the north temperate zone of Eurasia. ![]()
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