Species Delimitation, Phylogenetic Relationships, and Temporal Divergence Model in the Genus Aeromonas.

ABSTRACT: The definition of species boundaries constitutes an important challenge in biodiversity studies. In this work we applied the Generalized Mixed Yule Coalescent (GMYC) method, which determines a divergence threshold to delimit species in a phylogenetic tree. Based on the tree branching pattern, the analysis fixes the transition threshold between speciation and the coalescent process associated with the intra-species diversification. This approach has been widely used to delineate eukaryote species and establish their diversification process from sequence data. Nevertheless, there are few examples in which this analysis has been applied to a bacterial population. Although the GMYC method was originally designed to assume a constant (Yule) model of diversification at between-species level, it

SUBMITTER: Loren JG 

PROVIDER: S-EPMC5920023 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature