Whole-mitogenome analysis unveils previously undescribed genetic diversity in cane toads across their invasion trajectory.

ABSTRACT: Invasive species offer insights into rapid adaptation to novel environments. The iconic cane toad (Rhinella marina) is an excellent model for studying rapid adaptation during invasion. Previous research using the mitochondrial NADH dehydrogenase 3 (ND3) gene in Hawai'ian and Australian invasive populations found a single haplotype, indicating an extreme genetic bottleneck following introduction. Nuclear genetic diversity also exhibited reductions across the genome in these two populations. Here, we investigated the mitochondrial genomics of cane toads across this invasion trajectory. We created the first reference mitochondrial genome for this species using long-read sequence data. We combined whole-genome resequencing data of 15 toads with published transcriptomic data of 12

SUBMITTER: Cheung K 

PROVIDER: S-EPMC10909579 | biostudies-literature | 2024 Mar

REPOSITORIES: biostudies-literature