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生物通
6 天
剑尾鱼跨物种基因交流:虽障碍重重,却依然广泛存在
在物种演化研究中,生殖隔离与杂交现象的矛盾关系一直是未解之谜。为深入探究,研究人员以剑尾鱼(Xiphophorus)为对象,结合多种实验手段开展研究。结果发现,剑尾鱼虽存在多种生殖隔离机制,但基因流仍广泛存在。这一成果为理解物种演化提供了新视角。
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