文献类型： 外文期刊
作者： Li, Xiaoying 1 ; Zhang, Luyue 1 ; Wei, Xiaochun 2 ; Datta, Tanusree 1 ; Wei, Fang 1 ; Xie, Zhengqing 1 ;
作者机构： 1.Zhengzhou Univ, Sch Agr Sci, Henan Int Joint Lab Crop Gene Resources & Improvem, Zhengzhou 450001, Peoples R China
2.Zhengzhou Univ, Henan Acad Agr Sci, Inst Hort, Grad T&R Base, Zhengzhou 450002, Peoples R China
关键词： polyploidy; stress resistance; abiotic stress; biotic stress
期刊名称：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES （ 影响因子：5.6； 五年影响因子：6.2 ）
ISSN： 1661-6596
年卷期： 2024 年 25 卷 4 期
页码：
收录情况： SCI
摘要： Organisms with three or more complete sets of chromosomes are designated as polyploids. Polyploidy serves as a crucial pathway in biological evolution and enriches species diversity, which is demonstrated to have significant advantages in coping with both biotic stressors (such as diseases and pests) and abiotic stressors (like extreme temperatures, drought, and salinity), particularly in the context of ongoing global climate deterioration, increased agrochemical use, and industrialization. Polyploid cultivars have been developed to achieve higher yields and improved product quality. Numerous studies have shown that polyploids exhibit substantial enhancements in cell size and structure, physiological and biochemical traits, gene expression, and epigenetic modifications compared to their diploid counterparts. However, some research also suggested that increased stress tolerance might not always be associated with polyploidy. Therefore, a more comprehensive and detailed investigation is essential to complete the underlying stress tolerance mechanisms of polyploids. Thus, this review summarizes the mechanism of polyploid formation, the polyploid biochemical tolerance mechanism of abiotic and biotic stressors, and molecular regulatory networks that confer polyploidy stress tolerance, which can shed light on the theoretical foundation for future research.
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