Kirk David L
Department of Biology, Campus Box 1229, Washington University, St. Louis, Missouri 63130, USA.
Curr Biol. 2006 Dec 19;16(24):R1028-30. doi: 10.1016/j.cub.2006.11.015.
The male-female dichotomy has evolved independently in nearly all lineages of multicellular organisms. Why this should be the case is still uncertain, but recent studies of mating-type genes in green algae open a promising new way to explore molecular-genetic aspects of the evolution of dichotomous sexes.
雄性与雌性的二分法在几乎所有多细胞生物谱系中都是独立进化的。为何会如此仍不确定,但最近对绿藻交配型基因的研究为探索二分性别的进化的分子遗传学方面开辟了一条充满希望的新途径。