A phylogenetically informed delineation of floristic regions within a biodiversity hotspot in Yunnan, China.

ABSTRACT: Traditional attempts to delineate floristic regions typically focus on species distributions, often ignoring the rich context that phylogenetic relationships can provide. In this study, we explore how phylogenetic relatedness, taxonomic composition, and regional phylogenetic structure change across a global biodiversity hotspot region, Yunnan, located in southwestern China. We propose a system of floristic regions within Yunnan by combining data on the distributions and phylogenetic relationships of 1,983 genera of native seed plants. We identified eight distinct floristic regions in Yunnan, which were grouped into two larger northern and southern geographical units. Phylogenetic relatedness was well correlated with taxonomic composition between floras in Yunnan. Across the Yunnan region w

SUBMITTER: Li R 

PROVIDER: S-EPMC4377551 | biostudies-literature | 2015 Mar

REPOSITORIES: biostudies-literature