Tertiary origin and pleistocene diversification of dragon blood tree (Dracaena cambodiana-Asparagaceae) populations in the Asian tropical forests.

ABSTRACT:

Background

The origin of extraordinarily rich biodiversity in tropical forests is often attributed to evolution under stable climatic conditions over a long period or to climatic fluctuations during the recent Quaternary period. Here, we test these two hypotheses using Dracaena cambodiana, a plant species distributed in paleotropical forests.

Methods

WE ANALYZED NUCLEOTIDE SEQUENCE DATA OF TWO CHLOROPLAST DNA (CPDNA: atpB-rbcL and trnD-trnT) regions and genotype data of six nuclear microsatellites from 15 populations (140 and 363 individuals, respectively) distributed in Indochina Peninsular and Hainan Island to infer the patterns of genetic diversity and phylogeographic structure. The population bottleneck and genetic drift were estimated based upon nuclear microsatellites

SUBMITTER: Zhao JL 

PROVIDER: S-EPMC3613351 | biostudies-literature | 2013

REPOSITORIES: biostudies-literature