Details:

Journal Title:
PeerJ
Personal Author:
Devlin-Durante​, Meghann K.  ; Baums, Iliana B. 
Devlin-Durante​, Meghann K.  ; Baums, Iliana B.  Less -
Corporate Authors:
United States, National Oceanic and Atmospheric Administration, ; Coral Reef Conservation Program (U.S.)
United States, National Oceanic and Atmospheric Administration, ; Coral Reef Conservation Program (U.S.) Less -
NOAA Program & Office:
CoRIS (Coral Reef Information System)
Description:
The advent of next-generation sequencing tools has made it possible to conduct fine-scale surveys of population differentiation and genome-wide scans for signatures of selection in non-model organisms. Such surveys are of particular importance in sharply declining coral species, since knowledge of population boundaries and signs of local adaptation can inform restoration and conservation efforts. Here, we use genome-wide surveys of single-nucleotide polymorphisms in the threatened Caribbean elkhorn coral, Acropora palmata, to reveal fine-scale population structure and infer the major barrier to gene flow that separates the eastern and western Caribbean populations between the Bahamas and Puerto Rico. The exact location of this break had been subject to discussion because two previous studies based on microsatellite data had come to differing conclusions. We investigate this contradiction by analyzing an extended set of 11 microsatellite markers including the five previously employed and discovered that one of the original microsatellite loci is apparently under selection. Exclusion of this locus reconciles the results from the SNP and the microsatellite datasets. Scans for outlier loci in the SNP data detected 13 candidate loci under positive selection, however there was no correlation between available environmental parameters and genetic distance. Together, these results suggest that reef restoration efforts should use local sources and utilize existing functional variation among geographic regions in ex situ crossing experiments to improve stress resistance of this species.
Keywords:
[+]
Conservation Corals Microsatellites (Genetics)
Source:
PeerJ 5:e4077
DOI:
https://doi.org/10.7717/peerj.4077
Document Type:
Journal Article
Funding:
Grant no. NA13NOS4820029
Place as Subject:
Bahamas ; Puerto Rico
Bahamas ; Puerto Rico Less -
Rights Information:
CC BY
Compliance:
PMC
Main Document Checksum:
[+]
urn:sha256:24b92e80982ab6b44bd626dfad91a08ec1a3659921fde7f7d51738a260df8253
Download URL:
https://repository.library.noaa.gov/view/noaa/23272/noaa_23272_DS1.pdf
File Type:

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