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Molecular mechanisms controlling seed set in cereal crop species under stress and non-stress conditions

文献类型： 外文期刊

作者： Li Hui-yong 1 ; Lubberstedt, Thomas 2 ;

作者机构： 1.Henan Acad Agr Sci, Cereal Crops Res Inst, Zhengzhou 450002, Henan, Peoples R China

2.Iowa State Univ, Dept Agron, Ames, IA 50010 USA

关键词： maize; seed set; molecular mechanism

期刊名称：JOURNAL OF INTEGRATIVE AGRICULTURE （ 影响因子：2.848； 五年影响因子：2.979 ）

ISSN： 2095-3119

年卷期： 2018 年 17 卷 5 期

页码：

收录情况： SCI

摘要： Maximizing seed yield is the ultimate breeding goal in important cereal crop species. Seed set is a key developmental stage in the process of seed formation, which determines grain number, seed mass, and realized yield potential, and can be severely affected by abiotic and biotic stresses. However, seed set can also be substantially reduced by genetic factors even under optimal fertilization conditions. The underlying molecular genetic mechanisms are still obscure. In this review, we elucidate the process of seed set of cereal crop species in detail, including development of floral structures, formation of viable gametes, double fertilization, seed development, and abortion. We discuss how genetic and non-genetic factors affect seed set in different development stages. Finally, we will propose novel strategies to study genetic mechanisms controlling seed set and exploit genetic resources to improve seed set in cereal crop species.

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