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Establishment of Functional PCR-Based Markers against Bacterial Leaf Blight Disease in Rice Landraces of Yunnan Province of China

文献类型: 外文期刊

作者: Luo, Hengming 1 ; Wang, Qun 1 ; Dong, Chao 5 ; Shi, Zhufeng 1 ; He, Chengxing 1 ; Guo, Zhixiang 1 ; Shi, Junyi 1 ; Li, Chun 10 ; Gao, Wei 10 ; Li, Jinbin 1 ;

作者机构: 1.Yunnan Acad Agr Sci, Agr Environm & Resource Res Inst, Kunming 650205, Peoples R China

2.Minist Agr & Rural Affairs, Int Joint Res Ctr Agr, Kunming 650205, Peoples R China

3.Minist Agr & Rural Affairs, Key Lab Prevent & Control Biol Invas, Kunming 650205, Peoples R China

4.Yunnan Key Lab Green Prevent & Control Agr Transbo, Kunming 650205, Peoples R China

5.Yunnan Acad Agr Sci, Biotechnol & Germplasm Resources Inst, Kunming 650205, Peoples R China

6.Yunnan Seed Lab, Kunming 650205, Peoples R China

7.Yunnan Prov Key Lab Agr Biotechnol, Kunming 650205, Peoples R China

8.Minist Agr & Rural Affairs, Key Lab Southwestern Crop Gene Resources & Germpla, Kunming 650205, Peoples R China

9.Minist Agr & Rural Affairs, Sci Observat Stn Rice Germplasm Resources Yunnan, Kunming 650205, Peoples R China

10.Wenshan Plant Protect & Quarantine Stn, Wenshan 663099, Peoples R China

关键词: bacterial blight; resistance; functional markers; rice

期刊名称:LIFE-BASEL ( 影响因子:3.2; 五年影响因子:3.2 )

ISSN:

年卷期: 2023 年 13 卷 10 期

页码:

收录情况: SCI

摘要: Bacterial leaf blight is a devastating disease of rice worldwide. The resistant genes are routinely transferred from landraces to cultivated varieties through backcross breeding along with marker-assisted selection. In the present study, we use the gene-specific markers to screen the rice landraces in Yunnan Province of China. We collected 404 representative samples of 24 different rice landraces from Yunnan Province of China. The initial PCR-based screening suggested that the leaf blight resistance was not evenly distributed in Yunnan Province. Our results indicate that there is a complete loss of resistance for landraces based on xa5 and xa13 genes. On the other hand, landraces harboring Xa7 and Xa21 showed a high level of resistance. Using gene-specific PCR-based data, we were able to identify the resistant, susceptible and heterozygous populations across Yunnan Province. The widely used Xa21 gene alone showed a remarkable level of resistance throughout the province, indicating its potential to develop broad-spectrum resistance in rice germplasm. The key aspects of bacterial blight spread according to local sites in Yunnan Province and the resistance conferred by different landraces due to the presence of different resistance genes are discussed.

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