文献类型： 外文期刊
作者： Zhang, Shanshan 1 ; Pingcuo, Gesang 1 ; Ying, Hong 1 ; Zhao, Fan 1 ; Cui, Yongning 1 ; Zeng, Xiuli 1 ;
作者机构： 1.Minist Agr Qinghai, Tibet Plateau Fruit Trees Sci Observat Test Stn, Lhasa 850032, Tibet, Peoples R China
2.Tibet Acad Agr & Anim Husb Sci, Inst Vegetables, Lhasa 850002, Tibet, Peoples R China
关键词： Plant floral fertility; metabolome; domestication; gene expression profiling
期刊名称：BIOINFORMATION （ 影响因子：1.9； 五年影响因子：1.7 ）
ISSN： 0973-8894
年卷期： 2020 年 16 卷 5 期
页码：
收录情况： SCI
摘要： The loss of the male function plays an important role in plant adaptation and evolution and has contributed to the development of high yielding crop hybrids. We used the widely targeted metabolomics profiling technology to survey the metabolites and biological pathways associated with male sterility in Prunus mira by comparing flowers from fertile and sterile trees. Male sterile flowers displayed abnormal stamen, uncolored anthers, and distorted and shrunken pollen grains with an apparent lack of turgidity. We report 566 metabolites in six flower samples and 140 differentially accumulated metabolites (DAMs) between both flower types. Most of the DAMs belong to the phenyl propanoid biosynthesis pathway, particularly flavonoid, flavone and flavonol biosynthesis pathways, implying that alterations in these key pathways link to male sterility in P. mira. Connections between low levels of flavonoid metabolites, weak expression levels of several structural genes from the phenyl propanoid biosynthesis pathway and hyper accumulation of reactive oxygen species were highlighted for understanding the underlying mechanism leading to the abnormal or aborted pollen grains observed in the sterile flowers. Reported data on the molecular mechanism of male sterility in Prunus mira will facilitate further in-depth investigations on this important agronomic and ecological trait.
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