鉴定了一种与GA相关的Cis元素,调节了帕帕亚的男性脚延长
Julie Nguyen-Edquilang1,2, Jingjing Yue1, Ray Ming1,2
1FAFU and UIUC-SIB Joint Center for Genomics and Biotechnology, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
Plants (Basel, Switzerland)
|January 28, 2026
概括
帕帕亚短植物阶段 (CpSVP) 基因会影响脚的长度. 男性的CpSVP等位基因促进脚的延长,但CpSVP不参与的性别决定.
科学领域:
- 植物遗传学 植物遗传学
- 分子生物学分子生物学
- 农业科学 农业科学
背景情况:
- 帕帕亚 (Carica papaya L.) 呈现雄性,雌性和雌性花型.
- 雄性和雌性之间短植物阶段 (CpSVP) 的序列变化表明它在脚长度控制中的作用.
研究的目的:
- 调查CpSVP的空间和时间表达.
- 使用Arabidopsis作为模型确定CpSVP在调节脚长度和性别确定中的功能.
主要方法:
- 构建了本地番茄SVP促销商与GUS记者的翻译融合.
- 分析了2kb和1kb促销器的GUS表达模式,包括一个没有GA响应P-box的修改后1kb促销器.
- 生成的转基因阿拉比多普西斯表达雄性和雌性CpSVP等位基因.
主要成果:
- 2kb的木瓜SVP促销者在花器官和脚中表现出强烈的GUS表达.
- 一个1kb的推广器变体缺乏P-box元素,增强了表达和延长的脚.
- 具有男性CpSVP等位基因的转基因阿拉比多普西斯表现出增加的脚长度,不同于带有雌雄性等位基因的.
结论:
- CpSVP,特别是雄性基因基因 (CpSVP-Y),在番茄长度延长中起着重要作用.
- 已识别的P-box cis元素对于CpSVP介导的脚延长至关重要.
- CpSVP不是巴的性别决定的决定因素.
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