There is an obvious difference in the developing process of female and male gametophyte.
沙田柚雌雄配子体发育进程有明显差异，小孢子与雄配子体发生较早，持续时间较长；
Angiosperm female and male gametophyte formation is the key to the process of generational one.
被子植物雌、雄配子体的形成是世代交替的关键过程之一。
The megasporogenesis and microsporogenesis and the development of their female and male gametophyte are partially abnormal.
在凹叶厚朴大、小孢子发生和雌、雄配子体发育过程中存在部分败育现象。
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