Despite theoretical expectations of balanced 1:1 sex ratios between females and males, many dioecious plant species exhibit sex ratio distortions. A recent study in persimmon shows how this can be caused by random inactivation of an X-chromosomal gene that is essential for seed development.

中文翻译：

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X 特异性甲基化扭曲性别


尽管理论上期望雌性和雄性之间平衡的 1：1 性别比，但许多雌雄异株植物物种表现出性别比扭曲。最近对柿子的一项研究表明，这是由种子发育所必需的 X 染色体基因的随机失活引起的。