Potential Association of Reactive Oxygen Species With Male Sterility in Peach

文献类型： 外文期刊

第一作者： Cai, Yaming

作者： Cai, Yaming;Ogutu, Collins Otieno;Zhao, Lei;Liao, Liao;Zheng, Beibei;Zhang, Ruoxi;Wang, Lu;Han, Yuepeng;Cai, Yaming;Zhao, Lei;Cai, Yaming;Zhao, Lei;Liao, Liao;Zheng, Beibei;Zhang, Ruoxi;Wang, Lu;Han, Yuepeng;Ma, Zhishen;Ogutu, Collins Otieno;Wang, Lu;Han, Yuepeng

作者机构：

关键词： Prunus persica; tapetum degradation; pollen development; ROS homeostasis; male sterility

期刊名称：FRONTIERS IN PLANT SCIENCE （ 影响因子：4.402； 五年影响因子：5.207 ）

ISSN： 1664-462X

年卷期： 2021 年 12 卷

页码：

收录情况： SCI

摘要： Male sterility is an important agronomic trait for hybrid vigor utilization and hybrid seed production, but its underlying mechanisms remain to be uncovered. Here, we investigated the mechanisms of male sterility in peach using a combined cytology, physiology, and molecular approach. Cytological features of male sterility include deformed microspores and tapetum cells along with absence of pollen grains. Microspores had smaller nucleus at the mononuclear stage and were compressed into belts and subsequently disappeared in the anther cavity, whereas tapetum cells were swollen and vacuolated, with a delayed degradation to flowering time. Male sterile anthers had an ROS burst and lower levels of major antioxidants, which may cause abnormal development of microspores and tapetum, leading to male sterility in peach. In addition, the male sterility appears to be cytoplasmic in peach, which could be due to sequence variation in the mitochondrial genome. Our results are helpful for further investigation of the genetic mechanisms underlying male sterility in peach.

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