Filiault, D.L., Ballerini, E.S., Mandáková, T., Aköz, G., Derieg, N.J., Schmutz, J., Jenkins, J., Grimwood, J., Shu, S., Hayes, R.D., Hellsten, U., Barry, K., Yan, J., Mihaltcheva, S., Karafiátová, M., Nizhynska, V., Kramer, E.M., Lysak, M.A., Hodges, S.A., Nordborg, M.
ELIFE 7: e36426, 2018

Keywords: Aquilegia; chromosome evolution; chromosomes; gene expression; genetics; genome evolution; genomics; population genetics; speciation
Abstract: The columbine genus Aquilegia is a classic example of an adaptive radiation, involving a wide variety of pollinators and habitats. Here we present the genome assembly of A. coerulea 'Goldsmith', complemented by high-coverage sequencing data from 10 wild species covering the world-wide distribution. Our analyses reveal extensive allele sharing among species and demonstrate that introgression and selection played a role in the Aquilegia radiation. We also present the remarkable discovery that the evolutionary history of an entire chromosome differs from that of the rest of the genome - a phenomenon that we do not fully understand, but which highlights the need to consider chromosomes in an evolutionary context.
DOI: 10.7554/eLife.36426
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IEB authors: Miroslava Karafiá...