Microsatellite variation reveals high levels of genetic variability and population structure in the gorgonian coral Pseudopterogorgia elisabethae across the Bahamas

Molecular Ecology
Carla Gutiérrez-Rodríguez, Howard R Lasker

Abstract

The primary mechanism of gene flow in marine sessile invertebrates is larval dispersal. In Pseudopterogorgia elisabethae, a commercially important Caribbean gorgonian coral, a proportion of the larvae drop to the substratum within close proximity to the maternal colony, and most matings occur between individuals in close proximity to each other. Such limited dispersal of reproductive propagules suggests that gene flow is limited in this gorgonian. In this study, we characterized the population genetic structure of P. elisabethae across the Bahamas using six microsatellite loci. P. elisabethae was collected from 18 sites across the Bahamas. Significant deviations from Hardy-Weinberg equilibrium due to deficits of heterozygotes within populations were detected for all 18 populations in at least one of the six screened loci. Levels of genetic structure among populations of P. elisabethae were high and significant. A distance analysis placed populations within three groups, one formed by populations located within Exuma Sound, a semi-isolated basin, another consisting of populations located outside the basin and a third group comprising two populations from San Salvador Island. The patterns of genetic variation found in this study ...Continue Reading

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Citations

Jan 16, 2010·BMC Evolutionary Biology·Andrea Blanquer, Maria J Uriz
Feb 15, 2008·BMC Evolutionary Biology·Carlos PradaPaul M Yoshioka
Sep 17, 2010·PloS One·Edgardo Díaz-FergusonBrian Silliman
Oct 23, 2008·Molecular Phylogenetics and Evolution·Carla Gutiérrez-RodríguezHoward R Lasker
Apr 9, 2005·Molecular Ecology·Iliana B BaumsMichael E Hellberg
Feb 17, 2007·The Journal of Animal Ecology·Nicola L FosterPeter J Mumby
Nov 23, 2012·Molecular Ecology·Jason P AndrasCatherine D Harvell
Aug 29, 2013·Molecular Ecology·Herman H WirshingAndrew C Baker
Sep 30, 2016·Microorganisms·Veronica RobertsonRussell G Kerr
Sep 8, 2006·The Journal of Heredity·Yaron FuchsRachel Ben-Shlomo

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