Molecular evidence and ecological niche modeling reveal an extensive hybrid zone among three Bursera species (section Bullockia).

ABSTRACT: The genus Bursera, includes ~100 shrub and trees species in tropical dry forests with its center of diversification and endemism in Mexico. Morphologically intermediate individuals have commonly been observed in Mexican Bursera in areas where closely related species coexist. These individuals are assumed to result from interspecific hybridization, but no molecular evidence has supported their hybrid origins. This study aimed to investigate the existence of interspecific hybridization among three Mexican Bursera species (Bullockia section: B. cuneata, B. palmeri and B. bipinnata) from nine populations based on DNA sequences (three nuclear and four chloroplast regions) and ecological niche modeling for three past and two future scenario projections. Results from the only two polymorphic nucl

SUBMITTER: Quintero Melecio E 

PROVIDER: S-EPMC8604287 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature