Positive selection on panpulmonate mitogenomes provide new clues on adaptations to terrestrial life.

ABSTRACT:

Background

Transitions from marine to intertidal and terrestrial habitats resulted in a significant adaptive radiation within the Panpulmonata (Gastropoda: Heterobranchia). This clade comprises several groups that invaded the land realm independently and in different time periods, e.g., Ellobioidea, Systellomatophora, and Stylommatophora. Thus, mitochondrial genomes of panpulmonate gastropods are promising to screen for adaptive molecular signatures related to land invasions.

Results

We obtained three complete mitochondrial genomes of terrestrial panpulmonates, i.e., the ellobiid Carychium tridentatum, and the stylommatophorans Arion rufus and Helicella itala. Our dataset consisted of 50 mitogenomes comprising almost all major panpulmonate lineages. The phylogenetic tree bas

SUBMITTER: Romero PE 

PROVIDER: S-EPMC4994307 | biostudies-literature | 2016 Aug

REPOSITORIES: biostudies-literature