Genetic Diversity of Oxytropis Species from the Center of the Genus Origin: Insight from Molecular Studies
Sandanov D.V., Kholina A.B., Kozyrenko M.M., Artyukova E.V., Wang Z.
В журналеDiversity
Год: 2023 Том: 15 Номер: 2 ArticleID: 244
The genus Oxytropis (Fabaceae) was formed from the ancient species of Astragalus presumably approximately 5.6 Ma ago in Southern Siberia. Our study summarized data on the genetic diversity of 69 populations of 31 Oxytropis species in the center of origin of the genus based on the
sequencing of plastid genome markers. Most of the populations (82.6%) are characterized by high
gene diversity (0.600–1.000), which indicates a relatively stable state. Phylogenetic relationships
between most Oxytropis species remain unresolved. Three genetic complexes and four phyletic
lineages have been identified. Some species form weakly differentiated complexes, which is probably
caused by their relatively recent divergence and the demography processes, as well as interspecific
hybridization and polyploidy characteristic of Oxytropis species.