Genome-wide polymorphism and signatures of selection in the symbiotic sea anemone Aiptasia.

ABSTRACT:

Background

Coral reef ecosystems are declining in response to global climate change and anthropogenic impacts. Yet patterns of standing genetic variation within cnidarian species, a major determinant of adaptive potential, are virtually unknown at genome-scale resolution. We explore patterns of genome-wide polymorphism and identify candidate loci under selection in the sea anemone Aiptasia, an important laboratory model system for studying the symbiosis between corals and dinoflagellate algae of the genus Symbiodinium.

Results

Low coverage genome sequencing revealed large genetic distances among globally widespread lineages, novel candidate targets of selection, and considerably higher heterozygosity than previously reported for Aiptasia. More than 670,000 single nucleotide

SUBMITTER: Bellis ES 

PROVIDER: S-EPMC4772690 | biostudies-literature | 2016 Feb

REPOSITORIES: biostudies-literature