Population Genomics of the Euryhaline Teleost Poecilia latipinna

PloS One
J C B NunezD L Crawford

Abstract

Global climate change and increases in sea levels will affect coastal marine communities. The conservation of these ecologically important areas will be a challenge because of their wide geographic distribution, ecological diversity and species richness. To address this problem, we need to better understand how the genetic variation of the species in these communities is distributed within local populations, among populations and between distant regions. In this study we apply genotyping by sequencing (GBS) and examine 955 SNPs to determine Sailfin molly (Poecilia latipinna) genetic diversity among three geographically close mangrove salt marsh flats in the Florida Keys compared to populations in southern and northern Florida. The questions we are asking are whether there is sufficient genetic variation among isolated estuarine fish within populations and whether there are significant divergences among populations. Additionally, we want to know if GBS approaches agree with previous studies using more traditional molecular approaches. We are able to identify large genetic diversity within each saltmarsh community (π ≈ 36%). Additionally, among the Florida Key populations and the mainland or between southern and northern Florida ...Continue Reading

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References

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Citations

Apr 6, 2016·Briefings in Functional Genomics·Douglas L Crawford, Marjorie F Oleksiak
Mar 8, 2019·International Journal of Molecular Sciences·Paolo RuggeriMarjorie F Oleksiak
Apr 12, 2016·Evolution; International Journal of Organic Evolution·Jacob SchaeferDave Cooper Campbell
Apr 1, 2017·PLoS Genetics·Tara Z BarisDouglas L Crawford

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Methods Mentioned

BETA
Genotyping
electrophoresis

Software Mentioned

FDist2
Arlequin
nBLAST
DAPC
Bowtie
TASSEL
fastSTRUCTURE
R
GBS
FDist2 LOSITAN

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