一个类似超人的基因控制了西红果的局部数
Mi Zhang1,2, Enbai Zhou1,2, Meng Li2
1University of Chinese Academy of Sciences, 19A Yuquan Rd, Beijing 100049, China.
Plants (Basel, Switzerland)
|September 28, 2023
概括
研究人员在番茄中发现了一个令人着迷的突变基因 (FMF),与超人 (SUP) 基因相对应. 这种FMF基因影响着花的发育,导致花器官增加和果子形,从而有可能改善番茄产量.
科学领域:
- 植物遗传学 植物遗传学
- 发育生物学是发展生物学.
- 农业科学 农业科学
背景情况:
- 番茄果的形态是由花朵发育期间的卡佩尔号和身份决定的.
- 超人 (SUP) 基因对于调节植物中的花器官边界和美系统确定性至关重要.
- 在一些物种中,SUP基因功能得到了很好的研究,但在番茄中仍未被探索.
研究的目的:
- 识别和描述影响花发育和果物形态的番茄突变.
- 为了研究番茄超人 (SUP) 在花和水果发育中的功能.
- 探索操纵类似SUP的基因以提高番茄产量的潜力.
主要方法:
- 鉴定和表征一种新的番茄突变,迷恋和多局部水果 (fmf).
- 在Solanum pimpinellifolium和种植番茄背景中对fmf突变的遗传分析.
- 在CRISPR-Cas9基因编辑中,在种植的番茄中创建fmf等位基因.
主要成果:
- 这种fmf突变体表现出"超性"的花朵,花茎和骨数量增加.
- fmf突变产生的果实有缺陷,没有种子,并且经常在果实的远端形成完整的花朵.
- 在栽培番茄中,CRISPR生成的fmf等位基因表现出相似的花和果实表型,证实了基因功能.
结论:
- FMF基因是SUP的番茄基因,在调节花器官身份和花干系决定性方面发挥着保留的作用.
- FMF基因对于正常的番茄花和果子发育至关重要.
- FMF基因代表了基因工程的潜在目标,以提高番茄产量和水果质量.
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