An overlooked dispersal route of Cardueae (Asteraceae) from the Mediterranean to East Asia revealed by phylogenomic and biogeographical analyses of Atractylodes.

ABSTRACT:

Background and aims

The East Asian-Tethyan disjunction pattern and its mechanisms of formation have long been of interest to researchers. Here, we studied the biogeographical history of Asteraceae tribe Cardueae, with a particular focus on the temperate East Asian genus Atractylodes DC., to understand the role of tectonic and climatic events in driving the diversification and disjunctions of the genus.

Methods

A total of 76 samples of Atractylodes from 36 locations were collected for RAD-sequencing. Three single nucleotide polymorphism (SNP) datasets based on different filtering strategies were used for phylogenetic analyses. Molecular dating and ancestral distribution reconstruction were performed using both chloroplast DNA sequences (127 Cardueae samples) and SNP (36 Atrac

SUBMITTER: Xia M 

PROVIDER: S-EPMC9295924 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature