Branco, SaraCarpentier, FantinRodríguez de la Vega, Ricardo C.Badouin, HéléneSnirc, Alodiele Prieur, StephanieCoelho, Marco A.de Vienne, Damien M.Hartmann, Fanny E.Begerow, DominikHood, Michael E.Giraud, Tatiana2018-11-012018-11-012018-05Branco, Sara, Fantin Carpentier, Ricardo C. Rodríguez de la Vega, Héléne Badouin, Alodie Snirc, Stephanie le Prieur, Marco A. Coelho, Damien M. de Vienne, Fanny E. Hartmann, Dominik Begerow, Michael E. Hood, and Tatiana Giraud. "Multiple convergent supergene evolution events in mating-type chromosomes." Nature Communications 9 (May 2018): 1-13. DOI:10.1038/s41467-018-04380-9.2041-1723https://scholarworks.montana.edu/handle/1/14980Convergent adaptation provides unique insights into the predictability of evolution and ultimately into processes of biological diversification. Supergenes (beneficial gene linkage) are striking examples of adaptation, but little is known about their prevalence or evolution. A recent study on anther-smut fungi documented supergene formation by rearrangements linking two key mating-type loci, controlling pre- and post-mating compatibility. Here further high-quality genome assemblies reveal four additional independent cases of chromosomal rearrangements leading to regions of suppressed recombination linking these mating-type loci in closely related species. Such convergent transitions in genomic architecture of mating-type determination indicate strong selection favoring linkage of mating-type loci into cosegregating supergenes. We find independent evolutionary strata (stepwise recombination suppression) in several species, with extensive rearrangements, gene losses, and transposable element accumulation. We thus show remarkable convergence in mating-type chromosome evolution, recurrent supergene formation, and repeated evolution of similar phenotypes through different genomic changes.enCC BY, This license lets you distribute, remix, tweak, and build upon this work, even commercially, as long as you credit the original creator for this work. This is the most accommodating of licenses offered. Recommended for maximum dissemination and use of licensed materials.http://creativecommons.org/licenses/by/4.0/legalcodeMultiple convergent supergene evolution events in mating-type chromosomesArticle