The impacts of polyploidy, geographic and ecological isolations on the diversification of Panax (Araliaceae).

ABSTRACT:

Background

Panax L. is a medicinally important genus within family Araliaceae, where almost all species are of cultural significance for traditional Chinese medicine. Previous studies suggested two independent origins of the East Asia and North America disjunct distribution of this genus and multiple rounds of whole genome duplications (WGDs) might have occurred during the evolutionary process.

Results

We employed multiple chloroplast and nuclear markers to investigate the evolution and diversification of Panax. Our phylogenetic analyses confirmed previous observations of the independent origins of disjunct distribution and both ancient and recent WGDs have occurred within Panax. The estimations of divergence time implied that the ancient WGD might have occurred before the e

SUBMITTER: Shi FX 

PROVIDER: S-EPMC4687065 | biostudies-literature | 2015 Dec

REPOSITORIES: biostudies-literature