Allopatric and Sympatric Drivers of Speciation in Alviniconcha Hydrothermal Vent Snails.

ABSTRACT: Despite significant advances in our understanding of speciation in the marine environment, the mechanisms underlying evolutionary diversification in deep-sea habitats remain poorly investigated. Here, we used multigene molecular clocks and population genetic inferences to examine processes that led to the emergence of the six extant lineages of Alviniconcha snails, a key taxon inhabiting deep-sea hydrothermal vents in the Indo-Pacific Ocean. We show that both allopatric divergence through historical vicariance and ecological isolation due to niche segregation contributed to speciation in this genus. The split between the two major Alviniconcha clades (separating A. boucheti and A. marisindica from A. kojimai, A. hessleri, and A. strummeri) probably resulted from tectonic processes leading

SUBMITTER: Breusing C 

PROVIDER: S-EPMC7743903 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature