Population structure and demographic history of the gastropod Thaisella chocolata (Duclos, 1832) from the Southeast Pacific inferred from mitochondrial DNA analyses.

ABSTRACT: The present-day population structure of a species reflects the combination of oceanographic currents, life-history traits, and historical events. However, little is known about the mechanisms that have shaped the gene lineage distribution of marine species inhabiting the Southeast Pacific. Here, we provide a comprehensive phylogeographical study of a species distributed along the Southeast Pacific coastal region by analyzing the endemic gastropod Thaisella chocolata (Duclos, 1832). Sequencing of mitochondrial cytochrome c oxidase subunit 1 (CO1) and 16S rRNA revealed strikingly high haplotypic nucleotide and genetic diversity but a lack of significant population differentiation within the survey area. In addition, a star-shaped phylogeny and significantly negative Tajima's D

SUBMITTER: Zelada-Mazmela E 

PROVIDER: S-EPMC9463045 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature