In wheat during meiotic division H3 phosphorylation initiated in special domains at the transition from leptotene to zygotene .

小麦有丝分裂中，分裂早前期， H3磷酸化起始于细胞核内的一些特殊区域。

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。

Chromosomes interlockings occur during the late zygotene .

晚 偶 线期出现染色体互锁现象；

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；

XY pairing is delayed until late zygotene early pachytene . During early pachytene 30 % ~ 50 % Y axial is paired in SC association with X axial .

XY配对延迟至晚 偶 线 期 &早粗线期，在早粗线 期 阶段，配对 长度占Y轴全长的30%～50%。

Karyotype Analysis for Zygotene Chromosome of Nelumbo nucifera

中国莲的 偶 线 期核型分析

It took 18 hours for basidia from karyogamy to completion of meiosis including leptotene and zygotene 5.9 hrs pachytene 6-2 hrs diplotene and diakinesis 3.4 hrs metaphase I 0.5 hrs and anaphase I - tetrad 2 hrs .

担子减数分裂的持续时间为18小时，其中细线 期 和 偶 线 期5.9小时、粗线期6.2小时、双线期和终变期3.4小时、中期10.5小时、后期Ⅰ到四分体2小时；