@article{Bell2019-05-07Popul-44674,
  year={2019},
  doi={10.1093/jhered/esz004},
  title={Population Genomic Evidence Reveals Subtle Patterns of Differentiation in the Trophically Polymorphic Cuatro Ciénegas Cichlid, Herichthys minckleyi},
  number={3},
  volume={110},
  issn={0022-1503},
  journal={The Journal of Heredity},
  pages={361--369},
  author={Bell, Katherine L. and Nice, Chris C. and Hulsey, Christopher Darrin}
}

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    <dc:creator>Nice, Chris C.</dc:creator>
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    <dc:creator>Hulsey, Christopher Darrin</dc:creator>
    <dc:contributor>Bell, Katherine L.</dc:contributor>
    <dc:contributor>Nice, Chris C.</dc:contributor>
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    <dcterms:title>Population Genomic Evidence Reveals Subtle Patterns of Differentiation in the Trophically Polymorphic Cuatro Ciénegas Cichlid, Herichthys minckleyi</dcterms:title>
    <dcterms:issued>2019-05-07</dcterms:issued>
    <dc:contributor>Hulsey, Christopher Darrin</dc:contributor>
    <dcterms:abstract xml:lang="eng">In recent decades, an increased understanding of molecular ecology has led to a reinterpretation of the role of gene flow during the evolution of reproductive isolation and biological novelty. For example, even in the face of ongoing gene flow strong selection may maintain divergent polymorphisms, or gene flow may introduce novel biological diversity via hybridization and introgression from a divergent species. Herein, we elucidate the evolutionary history and genomic basis of a trophically polymorphic trait in a species of cichlid fish, Herichthys minckleyi. We explored genetic variation at three hierarchical levels; between H. minckleyi (n=69) and a closely related species H. cyanoguttatus (n=10), between H. minckleyi individuals from two geographic locations, and finally between individuals with alternate morphotypes at both a genome-wide and locus-specific scale. We found limited support for the hypothesis that the H. minckleyi polymorphism is the result of ongoing hybridization between the two species. Within H. minckleyi we found evidence of geographic genetic structure, and using traditional population genetic analyses found that individuals of alternate morphotypes within a pond appear to be panmictic. However, when we used a locus specific approach to examine the relationship between multi-locus genotype, tooth size, and geographic sampling, we found the first evidence for molecular genetic differences between the H. minckleyi morphotypes.</dcterms:abstract>
    <dc:creator>Bell, Katherine L.</dc:creator>
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