Research Progress on Molecular Genetics of Rice Salt ToleranceChinese Full TextEnglish Full Text (MT)
LIU Kai;ZHU Jing-wen;WAN Bai-jie;DAI Jin-ying;TANG Hong-sheng;SUN Ming-fa;Coastal Areas of Jiangsu Institute of Agricultural Sciences;
Abstract: Rice is one of the most important food crops in the world. Since this crop is moderately sensitive to salt stress,land salinization is therefore a factor that restricts the increase of global rice production. Its salt tolerance is a quantitative trait controlled by multiple genes and is easily affected by the environment. Different rice varieties have different salt tolerance responses and regulatory genes at different growth stages. At present,most studies focus on the salt tolerance of rice at the seedling stage,whereas identification of salt-tolerant phenotypes during the reproductive growth period of rice is rarely conducted. Breeding for new varieties showing salt-tolerant in lifecycle and its application is one of the optimal ways to improve saline soil. In recent years,a large number of salt-tolerant QTLs for rice have been mapped using molecular biology methods,but there are only a handful of QTLs available to rice breeders. At present,only by comprehensively analyzing the salt-tolerant mechanism of rice through multiple methods and multiple approaches,and mining the major genes or QTLs for salt-tolerance,can it be helpful to provide theoretical guidance for the cultivation of new salt-tolerant varieties of rice. At the same time,after years of hard work,my country has also made significant progress in the selection and breeding of new salt-tolerant rice varieties. On this basis,the article reviews the latest research progress in genomics,epigenetics,proteomics and metabolomics on salt tolerance,and provides a reference for exploring the molecular mechanism of salt tolerance and breeding for salt-tolerant varieties in rice.
- DOI：
10.13430/j.cnki.jpgr.20201121002
- Series：
(D) Agriculture
- Subject：
Crop
- Classification Code：
S511
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