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Notes on the taxonomy of Nymphaeaceae and Menyanthaceae in Mongolia
Shukherdorj Baasanmunkh,Batlai Oyuntsetseg,Magsar Urgamal,Joscelyn Norris,Takashi shiga,최재혁 국립중앙과학관 2022 Journal of Asia-Pacific Biodiversity Vol.15 No.1
In this study, we investigated four aquatic plants, namely Nuphar pumila (Timm) DC. and Nymphaeacandida C.Presl in Nympaeaceae as well as Menyanthes trifoliata L. and Nymphoides peltata (S.G. Gmel.)Kuntze in Menyanthaceae from Mongolia based on field surveys, herbariums, and scientific literature. Additionally In addition, we carefully examined for Nymphaea tetragona Georgi, which was previouslyrecorded in several lakes, Khar-Us, Khar, Buuntsagaan, and Tsetsegt as well as the Ider river in Mongolia. Because we did not find N. tetragona in the field and because it is difficult to identify from herbariumspecimens, we believe it has been misidentified at the Khar-Us, Khar, and Tsetsegt lakes to date. Moresurveys are needed to document its presence. Finally, we provide detailed distribution maps, photo illustrations,and taxonomic notes of four species.
Nudkhuu NYAMGEREL,Shukherdorj Baasanmunkh,Batlai Oyuntsetseg,Dashzeveg OYUNTSETSEG,Joscelyn Norris,최혁재,Gun-Aajav BAYARMAA 한국식물분류학회 2023 식물 분류학회지 Vol.53 No.1
Saussurea dorogostaiskii Palib. (Asteraceae) is a critically endangered medicinal plant in Mongolia and Russia. We studied the genetic variation of S. dorogostaiskii from three mountains of northern Mongolia. The genetic profile was assessed in 70 individuals from eight populations using five inter-simple sequence repeat markers, producing 53 loci with 96.4% polymorphism across all bands. Shannon’s index (I) and Nei’s gene diversity (H) value at the species level of S. dorogostaiskii are 0.25 and 0.17, respectively. An AMOVA showed high genetic variation among the populations (22% of populations and 32% of mountains), consistent with the high genetic differentiation (GST = 0.49) and low gene flow (Nm = 0.51) in S. dorogostaiskii populations. Eight populations were clustered into two groups, corresponding to their geographic locations. The low within-population genetic diversity and high genetic differentiation among S. dorogostaiskii populations factor into their endangered designation. This genetic analysis reveals that all populations are equally threatened, and community-based conservation is appropriate for these species.