Gregor Mendel Institute, Austrian Academy of Sciences, Vienna BioCenter, Vienna, Austria.
Department of Ecology, Evolution and Marine Biology, University of California, Santa Barbara, United States.
Elife. 2018 Oct 16;7:e36426. doi: 10.7554/eLife.36426.
The columbine genus is a classic example of an adaptive radiation, involving a wide variety of pollinators and habitats. Here we present the genome assembly of '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 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.
耧斗菜属是适应辐射的经典范例，涉及各种各样的传粉者和栖息地。在这里，我们呈现了“戈德史密斯”的基因组组装，同时还提供了来自覆盖全球分布的 10 个野生种的高覆盖测序数据。我们的分析揭示了物种之间广泛的等位基因共享，并表明基因渐渗和选择在辐射中发挥了作用。我们还发现了一个惊人的现象，即整个染色体的进化历史与基因组的其余部分不同 - 我们不完全理解这种现象，但它强调了需要在进化背景下考虑染色体。
