Homoploid hybrid speciation and recurrent hybridization along the northwestern Iberian mountain chains.

ABSTRACT:

Background and aims

Natural hybridization can lead to diversification and adaptive introgression, among other outcomes. However, the mechanistic underpinnings of this process are insufficiently understood. A previous study of the Iberian endemic diploid genus Phalacrocarpum (Asteraceae, Anthemideae) identified several homoploid hybridization events and cryptic diversity, but raised questions regarding their evolutionary significance and specific genetic groups involved. This study aimed to clarify the evolutionary history of this genus.

Methods

A double-digest restriction-site-associated DNA sequencing approach was used to generate nuclear single nucleotide polymorphisms (SNPs) from 261 samples of this genus and plastid sequences were obtained from 121 samples by genome skim

SUBMITTER: Criado-Ruiz D 

PROVIDER: S-EPMC12445855 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature