Data from: Implications of isolation and low genetic diversity in peripheral populations of an amphi-Atlantic coral ...

• Main Authors: Nunes, Flavia, Norris, Richard, Knowlton, Nancy
• Format: Dataset
• Language: English
• Published: Dryad 2010
• Subjects: peripheral population; Montastraea cavernosa; North Atlantic
• Online Access: https://dx.doi.org/10.5061/dryad.1723; https://datadryad.org/stash/dataset/doi:10.5061/dryad.1723

Limited dispersal and connectivity in marine organisms can have negative fitness effects in populations that are small and isolated, but reduced genetic exchange may also promote the potential for local adaptation. Here, we compare the levels of genetic diversity and connectivity in the coral Montastraea cavernosa among both central and peripheral populations throughout its range in the Atlantic. Genetic data from one mitochondrial and two nuclear loci in 191 individuals show that M. cavernosa is subdivided into three genetically distinct regions in the Atlantic: Caribbean-North Atlantic, Western South Atlantic (Brazil) and Eastern Tropical Atlantic (West Africa). Within each region, populations have similar allele frequencies and levels of genetic diversity; indeed, no significant differentiation was found between populations separated by as much as 3,000 km, suggesting that this coral species has the ability to disperse over large distances. Gene flow within regions does not, however, translate into ... : Sequences for b-tubulin 2Sequences submitted to Genbank for beta-tubulin 2Btub1McavIndcExc.TXTSequences for cox1-trnM IGRDNA Sequences submitted to Genbank for cox1-trnM intergenic regionMNCMcavHap.nxsHaplotype Frequencies per populationHaplotype frequencies per locus for each population. Loci studied: beta-tubulin 1, beta-tubulin 2 and cox1-trnM IGR. Populations: Belize, Panama, Puerto Rico, Bermuda, Abrolhos (Brazil), Joao Pessoa (Brazil), Fortaleza (Brazil), Sao Tome.SuppTable1.xlsSequences for b-tubulin 2Sequences submitted to Genbank for beta-tubulin 2YtubMcavHap.nxsGenotypesGenotype over all loci for each sampled individual.SuppTable2.xls ...