leptotene

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。

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；

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；

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。