Chromosomes interlockings occur during the late zygotene.
晚偶线期出现染色体互锁现象；
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。
3
The results showed that the mother pollen cells presented decreased ribosome numbers at leptotene and zygotene stages, and simplified mitochondria structure;