1. Chromosomes interlockings occur during the late zygotene.
晚偶线期出现染色体互锁现象；
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2. Prophase may be divided into successive stages termed leptotene, zygotene, pachytene, diplotene, and diakinesis.
前期可被分为连续的阶段：细线期、偶线期、粗线期、双线期和终变期。
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3. The results showed that the mother pollen cells presented decreased ribosome numbers at leptotene and zygotene stages, and simplified mitochondria structure;
花粉发育过程做了超微结构观察。结果表明，在花粉母细胞细线和偶线期，核糖体数量减少、线粒体结构简化；
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4. The results showed that the mother pollen cells presented decreased ribosome numbers at leptotene and zygotene stages, and simplified mitochondria structure;
