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dc.contributor.authorSotola, V. Alex
dc.contributor.authorRuppel, David S.
dc.contributor.authorBonner, Timothy H.
dc.contributor.authorNice, Chris C.
dc.contributor.authorMartin, Noland H.
dc.date.accessioned2019-07-31T17:18:12Z
dc.date.available2019-07-31T17:18:12Z
dc.date.issued2019
dc.identifier.citationSotola, V. A., Ruppel, D. S., Bonner, T. H., Nice, C. C., & Martin, N. H. (2019). Asymmetric introgression between fishes in the Red River basin of Texas is associated with variation in water quality. Ecology and Evolution, 9(4), pp. 2083–2095.en_US
dc.identifier.issn2045-7758
dc.identifier.urihttps://digital.library.txstate.edu/handle/10877/8430
dc.description.abstractWhen ecologically divergent taxa encounter one another, hybrid zones can form when reproductive isolation is incomplete. The location of such hybrid zones can be influenced by environmental variables, and an ecological context can provide unique insights into the mechanisms by which species diverge and are maintained. Two ecologically differentiated species of small benthic fishes, the endemic and imperiled prairie chub, Macrhybopsis australis, and the shoal chub, Macrhybopsis hyostoma, are locally sympatric within the upper Red River Basin of Texas. We integrated popula‐ tion genomic data and environmental data to investigate species divergence and the maintenance of species boundaries in these two species. We found evidence of advanced‐generation asymmetric hybridization and introgression, with shoal chub al‐ leles introgressing more frequently into prairie chubs than the reciprocal. Using a Bayesian Genomic Cline framework, patterns of genomic introgression were revealed to be quite heterogeneous, yet shoal chub alleles were found to have likely selectively introgressed across species boundaries significantly more often than prairie chub alleles, potentially explaining some of the observed asymmetry in hybridization. These patterns were remarkably consistent across two sampled geographic regions of hybridization. Several environmental variables were found to significantly predict individual admixture, suggesting ecological isolation might maintain species boundaries.en_US
dc.formatText
dc.format.extent13 pages
dc.format.medium1 file (.pdf)
dc.language.isoen_USen_US
dc.publisherWiley
dc.sourceEcology and Evolution, 2019, Vol. 9, No. 4, pp. 2083–2095
dc.subjectFishen_US
dc.subjectGenetic structure
dc.subjectHybridization
dc.subjectIntrogression
dc.subjectWater quality variation
dc.titleAsymmetric introgression between fishes in the Red River basin of Texas is associated with variation in water qualityen_US
txstate.documenttypeArticle
dc.identifier.doihttps://doi.org/10.1002/ece3.4901
dc.rights.licenseThis is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
txstate.departmentBiology


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