Population structure and hybridization under contemporary and future climates in a heteroploid foundational shrub species (Artemisia tridentata).

ABSTRACT: Current and past climatic changes can shift plant climatic niches, which may cause spatial overlap or separation between related taxa. The former often leads to hybridization and introgression, which may generate novel variation and influence the adaptive capacity of plants. An additional mechanism facilitating adaptations to novel environments and an important evolutionary driver in plants is polyploidy as the result of whole genome duplication. Artemisia tridentata (big sagebrush) is a landscape-dominating foundational shrub in the western United States which occupies distinct ecological niches, exhibiting diploid and tetraploid cytotypes. Tetraploids have a large impact on the species' landscape dominance as they occupy a preponderance of the arid spectrum of A. tridentata

SUBMITTER: Grossfurthner LP 

PROVIDER: S-EPMC10239881 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature