Marker-assisted breeding of Chinese elite rice cultivar 9311 for disease resistance to rice blast and bacterial blight and tolerance to submergence

2017 ◽  
Vol 37 (8) ◽  
Author(s):  
Yanchang Luo ◽  
Tingchen Ma ◽  
Aifang Zhang ◽  
Kar Hui Ong ◽  
Zhixiang Luo ◽  
...  
2015 ◽  
Vol 184 ◽  
pp. 1-8 ◽  
Author(s):  
Dahu Ni ◽  
Fengshun Song ◽  
Jinlong Ni ◽  
Aifang Zhang ◽  
Chunlian Wang ◽  
...  

2017 ◽  
Vol 30 (6) ◽  
pp. 466-477 ◽  
Author(s):  
Jun Wang ◽  
Dongsheng Tian ◽  
Keyu Gu ◽  
Xiaobei Yang ◽  
Lanlan Wang ◽  
...  

Bacterial blight of rice, caused by Xanthomonas oryzae pv. oryzae, is one of the most destructive bacterial diseases throughout the major rice-growing regions in the world. The rice disease resistance (R) gene Xa10 confers race-specific disease resistance to X. oryzae pv. oryzae strains that deliver the corresponding transcription activator-like (TAL) effector AvrXa10. Upon bacterial infection, AvrXa10 binds specifically to the effector binding element in the promoter of the R gene and activates its expression. Xa10 encodes an executor R protein that triggers hypersensitive response and activates disease resistance. ‘Nipponbare’ rice carries two Xa10-like genes in its genome, of which one is the susceptible allele of the Xa23 gene, a Xa10-like TAL effector-dependent executor R gene isolated recently from ‘CBB23’ rice. However, the function of the two Xa10-like genes in disease resistance to X. oryzae pv. oryzae strains has not been investigated. Here, we designated the two Xa10-like genes as Xa10-Ni and Xa23-Ni and characterized their function for disease resistance to rice bacterial blight. Both Xa10-Ni and Xa23-Ni provided disease resistance to X. oryzae pv. oryzae strains that deliver the matching artificially designed TAL effectors (dTALE). Transgenic rice plants containing Xa10-Ni and Xa23-Ni under the Xa10 promoter provided specific disease resistance to X. oryzae pv. oryzae strains that deliver AvrXa10. Xa10-Ni and Xa23-Ni knock-out mutants abolished dTALE-dependent disease resistance to X. oryzae pv. oryzae. Heterologous expression of Xa10-Ni and Xa23-Ni in Nicotiana benthamiana triggered cell death. The 19-amino-acid residues at the N-terminal regions of XA10 or XA10-Ni are dispensable for their function in inducing cell death in N. benthamiana and the C-terminal regions of XA10, XA10-Ni, and XA23-Ni are interchangeable among each other without affecting their function. Like XA10, both XA10-Ni and XA23-Ni locate to the endoplasmic reticulum (ER) membrane, show self-interaction, and induce ER Ca2+ depletion in leaf cells of N. benthamiana. The results indicate that Xa10-Ni and Xa23-Ni in Nipponbare encode functional executor R proteins, which induce cell death in both monocotyledonous and dicotyledonous plants and have the potential of being engineered to provide broad-spectrum disease resistance to plant-pathogenic Xanthomonas spp.


Rice ◽  
2014 ◽  
Vol 7 (1) ◽  
Author(s):  
Yanchang Luo ◽  
Sabaruddin Zakaria ◽  
Bakhtiar Basyah ◽  
Tingchen Ma ◽  
Zefu Li ◽  
...  

2012 ◽  
Vol 30 (4) ◽  
pp. 1601-1610 ◽  
Author(s):  
Yanchang Luo ◽  
Jatinder S. Sangha ◽  
Shouhai Wang ◽  
Zefu Li ◽  
Jianbo Yang ◽  
...  

2000 ◽  
Vol 13 (8) ◽  
pp. 869-876 ◽  
Author(s):  
Zhongchao Yin ◽  
Jun Chen ◽  
Lirong Zeng ◽  
Meiling Goh ◽  
Hei Leung ◽  
...  

Many plant mutants develop spontaneous lesions that resemble disease symptoms in the absence of pathogen attack. In several pathosystems, lesion mimic mutations have been shown to be involved in programmed cell death, which in some instances leads to enhanced disease resistance to multiple pathogens. We investigated the relationship between spontaneous cell death and disease resistance in rice with nine mutants with a range of lesion mimic phenotypes. All nine mutations are controlled by recessive genes and some of these mutants have stunted growth and other abnormal characteristics. The lesion mimics that appeared on the leaves of these mutants were caused by cell death as measured by trypan blue staining. Activation of six defense-related genes was observed in most of the mutants when the mimic lesions developed. Four mutants exhibited significant enhanced resistance to rice blast. One of the mutants, spl11, confers non-race-specific resistance not only to blast but also to bacterial blight. The level of resistance in the spl11 mutant to the two pathogens correlates with the defense-related gene expression and lesion development on the leaves. The results suggest that some lesion mimic mutations in rice may be involved in disease resistance, and cloning of these genes may provide a clue to developing broad-spectrum resistance to diverse pathogens.


Author(s):  
Kadu Tanvi P. ◽  
◽  
Kale Sonam S. ◽  
Chavan Narendra R. ◽  
Toshy Agrawal ◽  
...  

Rice Science ◽  
2021 ◽  
Vol 28 (1) ◽  
pp. 89-98
Author(s):  
Luo Yanchang ◽  
Ma Tingchen ◽  
Joanne Teo ◽  
Luo Zhixiang ◽  
Li Zefu ◽  
...  

Author(s):  
Siddulakshmi Prasanna ◽  
M. K. Prasannakumar ◽  
H. B. Mahesh ◽  
Gopal Venkatesh Babu ◽  
P. Kirnaymayee ◽  
...  

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