The polar and egg nuclei of the female gametophyte are genetically identical.
雌配子体中的极核和卵核遗传上是同一的.
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Protonema ( pl . protonemata ) The young bryophyte gametophyte that develops following spore germination.
苔藓植物中直接由孢子萌发形成的结构称为原丝体.
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The sporogonium is parasitic on the gametophyte generation.
孢子体是寄生在配子体上的.
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The female gametophyte is reduced, but larger than in angiosperms; it is not autotrophic.
裸子植物的雌配子体简化, 但较被子植物体的体积大, 不能自养.
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