Population subdivision and hybridization in a species complex of Gentiana in the Qinghai-Tibetan Plateau.

ABSTRACT:

Background and aims

Hosting several global biodiversity hotspots, the region of the Qinghai-Tibetan Plateau (QTP) is exceptionally species-rich and harbours a remarkable level of endemism. Yet, despite a growing number of studies, factors fostering divergence, speciation and ultimately diversity remain poorly understood for QTP alpine plants. This is particularly the case for the role of hybridization. Here, we explored the evolutionary history of three closely related Gentiana endemic species, and tested whether our results supported the mountain geo-biodiversity hypothesis (MGH).

Methods

We genotyped 69 populations across the QTP with one chloroplast marker and 12 nuclear microsatellite loci. We performed phylogeographical analysis, Bayesian clustering, approximate Bayesia

SUBMITTER: Fu PC 

PROVIDER: S-EPMC7103000 | biostudies-literature | 2020 Mar

REPOSITORIES: biostudies-literature