Liu Bin, Wu Huafeng, Cao Yinzhu, Zheng Xiaowen, Zhu Haoxiang, Sui Shunzhao
Chongqing Engineering Research Center for Floriculture, Key Laboratory of Agricultural Biosafety and Green Production of Upper Yangtze River (Ministry of Education), College of Horticulture and Landscape Architecture, Southwest University, Chongqing 400715, China.
College of Horticulture and Landscape Architecture, Southwest University, Chongqing 400715, China.
Plants (Basel). 2024 Sep 13;13(18):2571. doi: 10.3390/plants13182571.
(Calycanthaceae family) is a unique ornamental and economic flowering tree in China, and after thousands of years of cultivation, it has produced several varieties and varietal types. Notably, male sterility is common in flowering plants and is an important tool for the genetic improvement in plants and optimization using hybrid plant technology; however, there have been no reports on male-sterile material or related studies on . To our knowledge, this is the first time that male sterility is dissected unveiling the involvement of key metabolic pathways. Notably, male sterility in was observed during the budding period and likely occurred during the premature stage of pollen cell maturation. Additionally, differentially expressed genes in the starch and sucrose metabolism pathway and the plant hormone signal transduction pathway showed regular expression trends. This study reports on significant genetic differences that contribute to male sterility in and provides a basis for further research and breeding strategies.
（蜡梅科）是中国一种独特的兼具观赏和经济价值的开花乔木，经过数千年的培育，已产生了多个品种和变种类型。值得注意的是，雄性不育在开花植物中很常见，是植物遗传改良和利用杂交植物技术进行优化的重要工具；然而，关于雄性不育材料或相关研究尚无报道。据我们所知，这是首次对雄性不育进行剖析，揭示关键代谢途径的参与情况。值得注意的是，在芽期观察到了雄性不育现象，且可能发生在花粉细胞成熟的早期阶段。此外，淀粉和蔗糖代谢途径以及植物激素信号转导途径中的差异表达基因呈现出规律的表达趋势。本研究报道了导致雄性不育的显著遗传差异，为进一步的研究和育种策略提供了依据。
