通过指蛋白调节西红细胞大小的果实大小控制
Fangfang Zhao1,2, Jiajing Zhang1,3, Lin Weng1
1National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, 200032, China.
Molecular horticulture
|October 3, 2023
概括
一个新的指基因,SlPZF1,通过控制细胞大小和Endoreduplication来调节番茄果实大小. 均衡的SlPZF1表达对于番茄果子的正常发育和生长至关重要.
科学领域:
- 植物生物学 植物生物学
- 分子遗传学 分子遗传学
- 发展生物学 发展生物学
背景情况:
- 果子的大小是由细胞数量和大小决定的.
- 细胞循环过程Endoreduplication与番茄果实发育中的细胞扩张有关.
- 在水果生长过程中,对Endoreduplication和细胞大小的调节还不太清楚.
研究的目的:
- 在番茄果实发育过程中识别和描述调节细胞大小和Endoreduplication的基因.
- 为了研究指基因SlPZF1在控制番茄果实大小中的作用.
主要方法:
- 在发育中的番茄果实中对SlPZF1的基因表达分析.
- 转基因番茄植物的生成具有改变的SlPZF1表达.
- 酵母两杂交查以确定SlPZF1相互作用蛋白.
主要成果:
- SlPZF1在发育的西红果的周骨中表达很高.
- 改变的SlPZF1表达导致果实较小,这是由于细胞大小减少和Endoreduplication减弱造成的.
- 过度表达SlPZF1通过影响关键细胞周期调节器,延迟了细胞分裂阶段.
- 确定了14种假定SlPZF1相互作用蛋白 (PZFI),其中一些参与细胞循环调节.
结论:
- SlPZF1是一种新型调节细胞大小和番茄果子内核复制的新型调节剂.
- 均衡的SlPZF1表达对于正常的番茄果实生长至关重要.
- SlPZF1与参与mRNA前拼接,DNA修复和转录的蛋白质相互作用,突出其在细胞周期调节中的多方面的作用.
关键词:
细胞循环的细胞周期细胞大小 细胞大小经批准的重复复制.果实大小 果实大小番茄 (Solanum lycopersicum) 番茄 (Solanum lycopersicum) 番茄 (Solanum lycopersicum) 番茄 (Solanum lycopersicum) 番茄 (Solanum lycopersicum) 番茄 (Solanum lycopersicum) 番茄 (Solanum lycopersicum) 番茄 (Solanum lycopersicum) 番茄 (Solanum lycopersicum) 番茄 (Solanum lycopersicum) 番茄 (Solanum lycopersicum) 番茄 (Solanum lycopersicum) 番茄 (Solanum lycopersicum) 番茄 (Solanum lycopersicum) 番茄 (Solanum lycopersicum) 番茄 (Solanum lycopersicum) 番茄 (Solanum lycopersicum) 番茄 (Solanum lycopersicum) 番茄 (Solanum指蛋白质是一种指蛋白质.
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