@article{bb49c22033cf4ad2909b3f425dbcddf4,
title = "A chromosomal inversion may facilitate adaptation despite periodic gene flow in a freshwater fish",
abstract = "Differences in genomic architecture between populations, such as chromosomal inversions, may play an important role in facilitating adaptation despite opportunities for gene flow. One system where chromosomal inversions may be important for eco-evolutionary dynamics is in freshwater fishes, which often live in heterogenous environments characterized by varying levels of connectivity and varying opportunities for gene flow. In the present study, reduced representation sequencing was used to study possible adaptation in n = 345 walleye (Sander vitreus) from three North American waterbodies: Cedar Bluff Reservoir (Kansas, USA), Lake Manitoba (Manitoba, Canada), and Lake Winnipeg (Manitoba, Canada). Haplotype and outlier-based tests revealed a putative chromosomal inversion that contained three expressed genes and was nearly fixed in walleye assigned to Lake Winnipeg. These patterns exist despite the potential for high gene flow between these proximate Canadian lakes, suggesting that the inversion may be important for facilitating adaptive divergence between the two lakes despite gene flow. However, a specific adaptive role for the putative inversion could not be tested with the present data. Our study illuminates the importance of genomic architecture consistent with local adaptation in freshwater fishes. Furthermore, our results provide additional evidence that inversions may facilitate local adaptation in many organisms that inhabit connected but heterogenous environments.",
keywords = "Sander vitreus, adaptive variation, genomic architecture, haplotype, selection, walleye",
author = "Thorstensen, {Matt J.} and Euclide, {Peter T.} and Jeffrey, {Jennifer D.} and Yue Shi and Treberg, {Jason R.} and Watkinson, {Douglas A.} and Enders, {Eva C.} and Larson, {Wesley A.} and Yasuhiro Kobayashi and Jeffries, {Ken M.}",
note = "Funding Information: We thank Dr. Jeff Long for contributing walleye fry from Swan Creek Hatchery and for valuable discussions of Manitoba walleye ecology, diversity, and stocking. We thank Colin Charles, Colin Kovachik, Doug Leroux, Nicole Turner, Mike Gaudry, Sarah Glowa, and Emily Barker, who provided fin clips used for walleye DNA from Lake Winnipeg. We thank Evelien de Greef for guidance on synteny analyses and the map figure, and Dr. Kristen Gruenthal for sharing her expertise in sequencing library preparation. We thank David Splausbury and his staff from the Kansas Department of Wildlife, Parks, and Tourism for their assistance in the collection of samples at Cedar Bluff Reservoir. We thank Dr. Colin Garroway for discussions about βWT. Many analyses in this manuscript were enabled using computing resources provided by WestGrid (www.westgrid.ca) and Compute Canada (www.computecanada.ca). This work was supported by a Fisheries and Oceans Canada Ocean and Freshwater Science Contribution Program Partnership Fund grant awarded to KMJ, JRT, and Dr. Darren Gillis, and a Natural Sciences and Engineering Research Council of Canada Discovery Grants awarded to KMJ (#05479) and JRT (#06052). Work by JRT is also supported by the Canada Research Chairs program (#223744) and the Faculty of Science, University of Manitoba (#319254). Funding Information: We thank Dr. Jeff Long for contributing walleye fry from Swan Creek Hatchery and for valuable discussions of Manitoba walleye ecology, diversity, and stocking. We thank Colin Charles, Colin Kovachik, Doug Leroux, Nicole Turner, Mike Gaudry, Sarah Glowa, and Emily Barker, who provided fin clips used for walleye DNA from Lake Winnipeg. We thank Evelien de Greef for guidance on synteny analyses and the map figure, and Dr. Kristen Gruenthal for sharing her expertise in sequencing library preparation. We thank David Splausbury and his staff from the Kansas Department of Wildlife, Parks, and Tourism for their assistance in the collection of samples at Cedar Bluff Reservoir. We thank Dr. Colin Garroway for discussions about . Many analyses in this manuscript were enabled using computing resources provided by WestGrid ( www.westgrid.ca ) and Compute Canada ( www.computecanada.ca ). This work was supported by a Fisheries and Oceans Canada Ocean and Freshwater Science Contribution Program Partnership Fund grant awarded to KMJ, JRT, and Dr. Darren Gillis, and a Natural Sciences and Engineering Research Council of Canada Discovery Grants awarded to KMJ (#05479) and JRT (#06052). Work by JRT is also supported by the Canada Research Chairs program (#223744) and the Faculty of Science, University of Manitoba (#319254). β WT Publisher Copyright: {\textcopyright} 2022 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd.",
year = "2022",
month = may,
doi = "10.1002/ece3.8898",
language = "English (US)",
volume = "12",
journal = "Ecology and Evolution",
issn = "2045-7758",
publisher = "John Wiley and Sons Ltd",
number = "5",
}