Divergent selection and climate adaptation fuel genomic differentiation between sister species of Sphagnum (peat moss).

ABSTRACT:

Background and aims

New plant species can evolve through the reinforcement of reproductive isolation via local adaptation along habitat gradients. Peat mosses (Sphagnaceae) are an emerging model system for the study of evolutionary genomics and have well-documented niche differentiation among species. Recent molecular studies have demonstrated that the globally distributed species Sphagnum magellanicum is a complex of morphologically cryptic lineages that are phylogenetically and ecologically distinct. Here, we describe the architecture of genomic differentiation between two sister species in this complex known from eastern North America: the northern S. diabolicum and the largely southern S. magniae.

Methods

We sampled plant populations from across a latitudinal gradient in

SUBMITTER: Piatkowski B 

PROVIDER: S-EPMC10666999 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature