The Pid Family Has Been Diverged into Xian and Geng Type Resistance Genes against Rice Blast Disease
文献类型： 外文期刊
作者： Chai, Ruipeng 1 ; Wang, Jinyan 1 ; Wang, Xing 1 ; Wen, Jianqiang 1 ; Liang, Zhijian 1 ; Ye, Xuemei 1 ; Zhang, Yaling 1 ; Yao, Yongxiang 1 ; Zhang, Jianfu 4 ; Zhang, Yihua 4 ; Wang, Ling 1 ; Pan, Qinghua 1 ;
作者机构： 1.South China Agr Univ, Rice Blast Res Ctr, Guangzhou 510642, Peoples R China
2.Heilongjiang Bayi Agr Univ, Coll Agron, Daqing 163319, Peoples R China
3.Dandong Acad Agr Sci, Dandong 118109, Peoples R China
4.Fujian Acad Agr Sci, Rice Res Inst, Fuzhou 350003, Peoples R China
关键词： Oryza sativa; Magnaporthe oryzae; Xian and Geng type resistance gene; resistance function confirmation
期刊名称：GENES （ 影响因子：4.141； 五年影响因子：4.474 ）
ISSN：
年卷期： 2022 年 13 卷 5 期
页码：
收录情况： SCI
摘要： Rice blast (the causative agent the fungus Magnaporthe oryzae) represents a major constraint on the productivity of one of the world's most important staple food crops. Genes encoding resistance have been identified in both the Xian and Geng subspecies genepools, and combining these within new cultivars represents a rational means of combating the pathogen. In this research, deeper allele mining was carried out on Pid2, Pid3, and Pid4 via each comprehensive FNP marker set in three panels consisting of 70 Xian and 58 Geng cultivars. Within Pid2, three functional and one non-functional alleles were identified; the former were only identified in Xian type entries. At Pid3, four functional and one non-functional alleles were identified; once again, all of the former were present in Xian type entries. However, the pattern of variation at Pid4 was rather different: here, the five functional alleles uncovered were dispersed across the Geng type germplasm. Among all the twelve candidate functional alleles, both Pid2-ZS and Pid3-ZS were predominant. Furthermore, the resistance functions of both Pid2-ZS and Pid3-ZS were assured by transformation test. Profiting from the merits of three comprehensive FNP marker sets, the study has validated all three members of the Pid family as having been strictly diverged into Xian and Geng subspecies: Pid2 and Pid3 were defined as Xian type resistance genes, and Pid4 as Geng type. Rather limited genotypes of the Pid family have been effective in both Xian and Geng rice groups, of which Pid2-ZS_Pid3-ZS has been central to the Chinese rice population.
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