Klp2 and Ase1 synergize to maintain meiotic spindle stability during metaphase I
Klp2 and Ase1 synergize to maintain meiotic spindle stability during metaphase I
复制标题
Klp2 和 Ase1 协同维持减数分裂中期 I 纺锤体稳定性
DOI:
10.1101/2020.01.31.929729
复制
发表时间:
2020-02
影响因子:
4.8
通讯作者:
Fu Chuanhai
中科院分区:
文献类型:
--
作者:
Zheng Fan;Dong Fenfen;Yu Shuo;Li Tianpeng;Jian Yanze;Nie Lingyun;Fu Chuanhai
The spindle apparatus segregates bi-oriented sister chromatids during mitosis but mono-oriented homologous chromosomes during meiosis I. It has remained unclear if similar molecular mechanisms operate to regulate spindle dynamics during mitosis and meiosis I. Here, we employed live-cell microscopy to compare the spindle dynamics of mitosis and meiosis I in fission yeast cells and demonstrated that the conserved kinesin-14 motor Klp2 plays a specific role in maintaining metaphase spindle length during meiosis I but not during mitosis. Moreover, the maintenance of metaphase spindle stability during meiosis I requires the synergism between Klp2 and the conserved microtubule cross-linker Ase1, as the absence of both proteins causes exacerbated defects in metaphase spindle stability. The synergism is not necessary for regulating mitotic spindle dynamics. Hence, our work reveals a new molecular mechanism underlying meiotic spindle dynamics and provides insights into understanding differential regulation of meiotic and mitotic events.
登录
查看更多内容
影响因子:
3.3
作者:
Yukawa M;Kawakami T;Okazaki M;Kume K;Tang NH;Toda T
通讯作者:
Toda T
影响因子:
16.6
作者:
Petry S
通讯作者:
Petry S
影响因子:
4
作者:
Sköld, HN;Komma, DJ;Endow, SA
通讯作者:
Endow, SA
影响因子:
16.6
作者:
Lüdecke A;Seidel AM;Braun M;Lansky Z;Diez S
通讯作者:
Diez S
影响因子:
3.3
作者:
Cai, Shang;Weaver, Lesley N.;Walczak, Claire E.
通讯作者:
Walczak, Claire E.