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Vines, Timothy H.; Dalziel, Anne C.; Albert, Arianne; Veen, Thor; Schulte, Patricia Marita; Schluter, Dolph; Albert, Arianne Y. K.

<b>Abstract</b><br/>Strong ecological selection on a genetic locus can maintain allele frequency differences between populations in different environments, even in the face of hybridization. When alleles at divergent loci come into tight linkage disequilibrium, selection acts on them as a unit and can significantly reduce gene flow. For populations interbreeding across a hybrid zone, linkage disequilibria between loci can force clines to share the same slopes and centers. However, strong ecological selection on a locus can also pull its cline away from the others, reducing linkage disequilibrium and weakening the barrier to gene flow. We looked for this ‘cline uncoupling’ effect in a hybrid zone between stream resident and anadromous sticklebacks at two genes known to be under divergent natural selection (Eda and ATP1a1) and five morphological traits that repeatedly evolve in freshwater stickleback. These clines were all steep and located together at the top of the estuary, such that we found no evidence for cline uncoupling. However, we did not observe the stepped shape normally associated with steep concordant clines. It thus remains possible that these clines cluster together because their individual selection regimes are identical, but this would be very surprising given their diverse roles in osmoregulation, body armor and swimming performance.; <b>Usage notes</b><br /><div class="o-metadata__file-usage-entry"><h4 class="o-heading__level3-file-title">SNP data</h4><div class="o-metadata__file-description">The raw SNP data for the 15 genetic loci</div><div class="o-metadata__file-name"></div><div class="o-metadata__file-name"></div></div><div class="o-metadata__file-usage-entry"><h4 class="o-heading__level3-file-title">Bonsall_Morph_Gen_data</h4><div class="o-metadata__file-description">A csv file containing the morphological and SNP data for all individuals</div><div class="o-metadata__file-name"></div></div><div class="o-metadata__file-usage-entry"><h4 class="o-heading__level3-file-title">CFit Input file</h4><div class="o-metadata__file-description">An example CFit7 input file for the CFit analyses</div><div class="o-metadata__file-name"></div></div><div class="o-metadata__file-usage-entry"><h4 class="o-heading__level3-file-title">Vines et al Evolution R code</h4><div class="o-metadata__file-description">The R code for the parts of the analysis that were carried out in R, and the code for making the figures.</div><div class="o-metadata__file-name"></div></div><div class="o-metadata__file-usage-entry"><h4 class="o-heading__level3-file-title">Vines et al Bonsall Creek Analysis</h4><div class="o-metadata__file-description">An Excel spreadsheet containing preliminary analysis for the genetic data</div><div class="o-metadata__file-name"></div></div><div class="o-metadata__file-usage-entry"><h4 class="o-heading__level3-file-title">Vines et al Bonsall Creek Readme</h4><div class="o-metadata__file-description">A readme for the Vines et al Bonsall Creek data files</div><div class="o-metadata__file-name"></div></div>

Vancouver Island; Canada; Chemainus; British Columbia

Dryad version number: 1</p>

Version status: submitted</p>

Dryad curation status: Published</p>

Sharing link: https://datadryad.org/stash/share/IDfywAEbqXQj8CenfkQgTfFr6kMc3TAeXtlYo5lWTyA</p>

Storage size: 344230</p>

Visibility: public</p>

University of British Columbia Library

10.14288/1.0397543

https://doi.org/10.5683/SP2/41QBPG; https://doi.org/10.5061/dryad.v7r0b

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