Keller M J, Gerhardt H C
Division of Biological Sciences, University of Missouri-Columbia, 65211, USA.
Proc Biol Sci. 2001 Feb 22;268(1465):341-5. doi: 10.1098/rspb.2000.1391.
Whole-genome duplication is believed to have played a significant role in the early evolution and diversification of vertebrate animals. The establishment of newly arisen polyploid lineages of sexually reproducing animals requires assortative mating between polyploids. Here, we show that genome duplication can directly alter a phenotypic trait mediating mate choice in the absence of genotypic change. Our results suggest that the direct effect of polyploidy on behaviour is a consequence of increased cell size.
全基因组复制被认为在脊椎动物的早期进化和多样化过程中发挥了重要作用。有性繁殖动物新出现的多倍体系的建立需要多倍体之间的选择性交配。在这里，我们表明，在没有基因型变化的情况下，基因组复制可以直接改变介导配偶选择的表型性状。我们的结果表明，多倍体对行为的直接影响是细胞大小增加的结果。
