The polar and egg nuclei of the female gametophyte are genetically identical.
雌配子體中的極核和卵核遺傳上是同一的.
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Protonema ( pl . protonemata ) The young bryophyte gametophyte that develops following spore germination.
苔蘚植物中直接由孢子萌發(fā)形成的結構稱為原絲體.
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The sporogonium is parasitic on the gametophyte generation.
孢子體是寄生在配子體上的.
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The female gametophyte is reduced, but larger than in angiosperms; it is not autotrophic.
裸子植物的雌配子體簡化, 但較被子植物體的體積大, 不能自養(yǎng).
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