Coalescent-based species delimitation in North American pinyon pines using low-copy nuclear genes and plastomes.

ABSTRACT:

Premise

Accurate species delimitation is essential for evolutionary biology, conservation, and biodiversity management. We studied species delimitation in North American pinyon pines, Pinus subsection Cembroides, a natural group with high levels of incomplete lineage sorting.

Methods

We used coalescent-based methods and multivariate analyses of low-copy number nuclear genes and nearly complete high-copy number plastomes generated with the Hyb-Seq method. The three coalescent-based species delimitation methods evaluated were the Generalized Mixed Yule Coalescent (GMYC), Poisson Tree Process (PTP), and Trinomial Distribution of Triplets (Tr2). We also measured admixture in populations with possible introgression.

Results

Our results show inconsistencies among GMYC, PTP,

SUBMITTER: Montes JR 

PROVIDER: S-EPMC9321694 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature