Phylogenetic relationships and species delimitation in pinus section trifoliae inferrred from plastid DNA.

ABSTRACT: Recent diversification followed by secondary contact and hybridization may explain complex patterns of intra- and interspecific morphological and genetic variation in the North American hard pines (Pinus section Trifoliae), a group of approximately 49 tree species distributed in North and Central America and the Caribbean islands. We concatenated five plastid DNA markers for an average of 3.9 individuals per putative species and assessed the suitability of the five regions as DNA bar codes for species identification, species delimitation, and phylogenetic reconstruction. The ycf1 gene accounted for the greatest proportion of the alignment (46.9%), the greatest proportion of variable sites (74.9%), and the most unique sequences (75 haplotypes). Phylogenetic analysis recovered clades corresp

SUBMITTER: Hernandez-Leon S 

PROVIDER: S-EPMC3728320 | biostudies-literature | 2013

REPOSITORIES: biostudies-literature