Unraveling Evolution in the Homoploid Complex of <i>Baccharis</i> L. in Chile.

ABSTRACT: Baccharis × intermedia (Asteraceae), found in central Chile, is a naturally occurring hybrid derived from the parent species B. macraei and B. linearis. It represents an extraordinary example of admixture with additive plant chemistry; however, the genetic structure of the hybrid complex and its evolution are still unclear. Intensive field sampling and Genotyping-by-Sequencing (GBS) were used to clarify the structure of the B. × intermedia hybrid complex. In addition, B. vernalis, another species that resembles the morphology of B. macraei, was subjected to analysis to ascertain its role in the hybridization process. A total of 3724 SNPs and 378 individuals were analyzed using clustering, PCA, Treemix, Patterson's D- and f-statistics.

SUBMITTER: Schneider F 

PROVIDER: S-EPMC12501958 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature