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Science:单基因决定了颈鹬的雄性交配形态
参与交配行为的雄性颈鹬通常分为三组,它们的攻击性和羽毛的艳丽程度以及其他因素都有所不同。现在,一项新的研究报告了一个单一的基因——HSD17B2——在雄性斑鹬的变种中造成了这些巨大的差异。这些发现显示了单个基因结构、序列和调控的进化变化如何在单个物种中驱动显著的多样性。
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