Functioning of rare plant populations of Central Siberia

Boikov, T. G.

doi:10.1134/s1995425509050099

Cited by 2 publications

(1 citation statement)

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“…Previous studies reported that S. dorogostaiskii is a monocarpic perennial that reproduces exclusively by seed; it has been found with more rocks and less vegetation cover in the middle elevation of mountains up to 2,735 m, with a relatively low number of mature individuals (Von Raab-Straube, 2017; Norris, 2020). In addition, Boikov (2009) discovered that S. dorogostaiskii, as a rare plant species adapted to ecological stress conditions in Siberia, is not very competitive, grows slowly, and prefers an open canopy area. For a species already low in number, these traits of reproducing slowly and in highstress niche environments, indicate that gene flow would be limited.…”

Section: Discussionmentioning

confidence: 99%

Genetic diversity of the threatened Saussurea dorogostaiskii (Asteraceae) in the Khuvsgul region of Mongolia

Nyamgerel

Baasanmunkh

Oyuntsetseg

et al. 2023

Korean J. Pl. Taxon

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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.

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Section: Discussionmentioning

confidence: 99%