Auxin Response Factors in flower maturation

花成熟中的生长素反应因素

• 批准号: 1147045
• 负责人: Jason Reed
• 金额: $ 56.87万
• 依托单位: University of North Carolina at Chapel Hill
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-03-01 至 2016-02-29
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1147045&HistoricalAwards=false
• 关键词: Auxin; Response; Factors; flower; maturation

Flower maturation is critical for plant reproduction because it ensures coordinated maturation of female and male reproductive organs as well as floral display that attracts pollinators. The Arabidopsis transcription factors AUXIN RESPONSE FACTOR 6 (ARF6) and ARF8 regulate these complex processes by promoting petal expansion, male and female organ maturation and other processes. This project will identify floral genes directly regulated by ARF6 and ARF8, determine their effects on chromatin modifications that influence gene expression, and identify other transcription factors that act together with ARF6 and ARF8. By understanding the functions of ARF6 and ARF8 in flower maturation the project will provide general insights into regulation of coordinated developmental processes. The research may also inform strategies to optimize seed or fruit production in the face of declining pollinator populations. The project will provide scientific training for postdoctoral fellows and students and will produce an interactive 30-minute multimedia presentation for schoolchildren and the general public. Produced in collaboration with the Morehead Planetarium and Science Center at the University of North Carolina, this presentation will educate the public about genetics and flower function and will be presented daily in the summer months. The project will generate extensive genome binding and gene expression data that will be published and deposited in the public NCBI Gene Expression Omnibus database. Plant materials generated in the project will be deposited in the Arabidopsis Biological Resource Center.

花朵成熟对植物繁殖至关重要，因为它确保了雌性和雄性生殖器官的协调成熟，以及吸引传粉者的花朵展示。拟南芥转录因子生长素反应因子6(ARF6)和ARF8通过促进花瓣扩张、雄性和雌性器官成熟等过程来调节这些复杂的过程。该项目将确定ARF6和ARF8直接调控的花基因，确定它们对影响基因表达的染色质修饰的影响，并确定与ARF6和ARF8共同作用的其他转录因子。通过了解ARF6和ARF8在花成熟过程中的功能，该项目将提供对协调发育过程调节的一般见解。这项研究还可能为在传粉者数量下降的情况下优化种子或水果生产的策略提供参考。该项目将为博士后研究员和学生提供科学培训，并将为学童和普通公众制作30分钟的互动多媒体演示。这份报告是与北卡罗来纳大学莫尔黑德天文馆和科学中心合作制作的，将教育公众关于遗传学和花的功能，并将在夏季的几个月每天发布。该项目将产生广泛的基因组结合和基因表达数据，这些数据将被公布并存放在公共的NCBI基因表达综合数据库中。项目中产生的植物材料将存放在拟南芥生物资源中心。