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杨超

博士生导师
教师姓名:杨超
教师拼音名称:Chao Yang
职务:Professor
职称:教授
在职信息:在职
学历:博士研究生毕业
学位:博士
办公地点:作物遗传改良全国重点实验室A323
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毕业院校:德国汉堡大学
所属院系:植物科学技术学院
所在单位:植物科学技术学院
其他联系方式
论文成果
Yuan X, Cai B, Hamamura Y, Schnittger A*, Yang C* SCFRMF-dependent degradation of the nuclear lamina releases the somatic chromatin mobility restriction for meiotic recombination. Science Advances, 2025, 11, eadr456. DOI:10.1126/sciadv.adr4567
发布时间:2025-02-26    点击次数:

摘要:Meiosis prepares the genome for sexual reproduction and is a driver of genetic diversity. Essential for both aspects are rapid chromosome movements enabling the pairing of homologous chromosomes, thereby promoting their recombination and ensuring their correct segregation afterward. However, it is unknown how meiocytes reorganize their nuclear architecture when chromosomes are tethered to the nuclear lamina in somatic cells. Here, we reveal the meiosis-specific Skp1–Cul1–F-box-protein (SCF) E3 ubiquitin ligase SCFRMF as a key regulator of this reorganization in Arabidopsis. We find that the nuclear lamina proteins of the CRWN family are degraded in an SCFRMF-dependent manner in this process. Thus, the SCFRMF functions to release the somatic constraints on chromosome mobility through disrupting the nuclear lamina, allowing homologous chromosomes to pair.

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发布期刊链接:https://www.science.org/doi/10.1126/sciadv.adr4567#core-collateral-metrics