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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
研究人员探究拟南芥(Arabidopsis)雄配子体发育,发现受孢子体遗传调控,具重要进化意义。 植物在二倍体孢子体(sporophyte)和单倍体配子体(gametophyte)世代间交替 1 。苔藓保留了陆地植物祖先的特征,其配子体占主导且能独立生存。然而,在开花植物中 ...
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