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揭秘拟南芥雄配子体发育调控机制:进化中的新发现
研究人员鉴定出拟南芥的 SHUKR 基因是雄配子基因表达的抑制剂。SHUKR 与已知功能的蛋白质无关,在减数分裂(meiosis)过程中从孢子体发挥作用,通过负向调节减数分裂后配子发生特有的大量基因的表达,来控制配子体发育。这种调控在进化后期才出现,因为仅 ...
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