Advances in Research on the Mechanism of Heterosis in Plants

被引:25
|
作者
Wu, Xilin [1 ,2 ]
Liu, Yan [1 ,2 ]
Zhang, Yaowei [1 ,2 ]
Gu, Ran [1 ,2 ]
机构
[1] Minist Agr & Rural Affairs, Key Lab Biol & Genet Improvement Hort Crops North, Harbin, Peoples R China
[2] Northeast Agr Univ, Coll Hort & Landscape Architecture, Harbin, Peoples R China
来源
关键词
heterosis; plant; biomass yield; grain yield; gene; QUANTITATIVE TRAIT LOCUS; GENE-EXPRESSION; HYBRID VIGOR; TRANSCRIPTION FACTORS; DNA METHYLATION; YIELD HETEROSIS; MOLECULAR-BASIS; GRAIN-YIELD; BIOMASS HETEROSIS; ANALYSIS REVEALS;
D O I
10.3389/fpls.2021.745726
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Heterosis is a common biological phenomenon in nature. It substantially contributes to the biomass yield and grain yield of plants. Moreover, this phenomenon results in high economic returns in agricultural production. However, the utilization of heterosis far exceeds the level of theoretical research on this phenomenon. In this review, the recent progress in research on heterosis in plants was reviewed from the aspects of classical genetics, parental genetic distance, quantitative trait loci, transcriptomes, proteomes, epigenetics (DNA methylation, histone modification, and small RNA), and hormone regulation. A regulatory network of various heterosis-related genes under the action of different regulatory factors was summarized. This review lays a foundation for the in-depth study of the molecular and physiological aspects of this phenomenon to promote its effects on increasing the yield of agricultural production.
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收藏
页数:14
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