Spindle asymmetry drives non-Mendelian chromosome segregation.
Spindle asymmetry drives non-Mendelian chromosome segregation.
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DOI:
10.1126/science.aan0092
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发表时间:
2017-11-03
期刊:
影响因子:
--
通讯作者:
Lampson MA
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文献类型:
--
作者:
Akera T;Chmátal L;Trimm E;Yang K;Aonbangkhen C;Chenoweth DM;Janke C;Schultz RM;Lampson MA
Genetic elements compete for transmission through meiosis, when haploid gametes are created from a diploid parent. Selfish elements can enhance their transmission through a process known as meiotic drive. In female meiosis, selfish elements drive by preferentially attaching to the egg side of the spindle. This implies some asymmetry between the two sides of the spindle, but molecular mechanisms underlying spindle asymmetry are unknown. Here we found that CDC42 signaling from the cell cortex regulated microtubule tyrosination to induce spindle asymmetry. Non-Mendelian segregation depended on this asymmetry. Cortical CDC42 depends on polarization directed by chromosomes, which are positioned near the cortex to allow the asymmetric cell division. Thus, selfish meiotic drivers exploit the asymmetry inherent in female meiosis to bias their transmission.
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DOI:
10.1038/nrm3255
发表时间:
2011-12-22
期刊:
Nature reviews. Molecular cell biology
影响因子:
--
作者:
通讯作者:
--
DOI:
10.1083/jcb.201211017
发表时间:
2013-02-04
期刊:
The Journal of cell biology
影响因子:
--
作者:
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通讯作者:
Steinmetz MO
影响因子:
1.6
作者:
HEWITT, GM
通讯作者:
HEWITT, GM
影响因子:
4.6
作者:
Azoury, Jessica;Lee, Karen Wingman;Verlhac, Marie-Helene
通讯作者:
Verlhac, Marie-Helene
影响因子:
11.8
作者:
Deng, Manqi;Suraneni, Praveen;Li, Rong
通讯作者:
Li, Rong