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CmFUL1有可能参与瓜子的果实延长

Lingli Tang^1,2, Yuhua He¹, Bingxue Liu¹

¹National Key Laboratory for Germplasm Innovation & Utilization of Horticultural Crops, Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Gangwan Road No.28, Guancheng Region, Zhengzhou 450009, China.

Horticulture research

|July 23, 2025

概括

研究人员确定了FRUITFULL基因 (CmFUL1) 作为瓜子水果长度的关键调节器. 这个基因充当负调节器,操纵它可以改变水果的延长,以改善瓜子的繁殖.

科学领域:

植物遗传学和分子生物学
改善水果作物作物的改善.
农业科学农业科学

背景情况:

水果的大小和形状是瓜子 (Cucumis melo L.) 种植的关键质量特征.
果子的长度显著影响着果子的整体大小和形状,但其调节的遗传基础在很大程度上仍未被探索.
识别控制水果长度的基因对于开发改进的西瓜品种至关重要.

研究的目的:

为了确定调节瓜子果实长度的候选基因.
阐明鉴定出的基因在水果延长中的作用.
探索基因功能的进化保存.

主要方法:

用全基因组关联分析 (GWAS) 和遗传学分析来确定候选基因.
进行了组织特异性表达分析,以确定基因表达模式.
用CRISPR-Cas9基因编辑来进行功能性表征,并在番茄中进行异质表达.

主要成果:

转录因子CmFUL1 (FRUITFULL) 被确定为瓜子水果长度的候选调节者.
主要在花和卵巢发育期间观察到CmFUL1表达,并且与不同西瓜生殖质中的水果长度负相关.
CR-Cmful1突变体表现出水果长度增加,番茄中CmFUL1的异质表达抑制了水果延长,证实了其作为负调节者的作用.

结论:

CmFUL1 是一个关键的候选基因,参与调节瓜子的水果长度.
鉴定出来的基因作为水果延长的负调节者,在各个物种中保持功能.
这项研究为具有理想果实长度特征的瓜子的分子育种提供了宝贵的遗传资源.

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