@Article{phyton.2020.08548,
AUTHOR = {Ning Xuan, Hua Zhang, Xu Liu, Qiang Guo, Jian Liu, Fangyin Yao},
TITLE = {Analysis of the Relationship between Blast Resistance Genes and Disease Resistance of Rice Germplasm via Functional Molecular Markers},
JOURNAL = {Phyton-International Journal of Experimental Botany},
VOLUME = {89},
YEAR = {2020},
NUMBER = {1},
PAGES = {45--55},
URL = {http://www.techscience.com/phyton/v89n1/38398},
ISSN = {1851-5657},
ABSTRACT = {Rice blast disease is one of the most devastating diseases of rice 
(<i>Oryza sativa L</i>.) caused by the fungus <i>Magnaporthe oryzae</i> (<i>M. oryzae</i>), and 
neck blast is the most destructive phase of this illness. The underlying molecular 
mechanisms of rice blast resistance are not well known. Thus, we collected 150 
rice varieties from different ecotypes in China and assessed the rice blast 
resistances under the natural conditions that favoured disease development in 
Jining, Shandong Province, China in 2017. Results showed that 92 (61.3%) and 
58 (38.7%) rice varieties were resistant and susceptible to <i>M. oryzae</i>, 
respectively. Among the 150 rice varieties screened for the presence of 13 major 
blast resistance (R) genes against <i>M. oryzae</i> by using functional markers, 147 
contained one to eight R genes. The relationship between R genes and disease 
response was discussed by analysing the phenotype and genotype of functional 
markers. The results showed that the rice blast resistance gene <i>Pita</i> was 
significantly correlated with rice blast resistance. Our results provided a basis for 
the further understanding of the distribution of 13 major R genes of rice blast in 
the germplasm resources of the tested rice varieties, and were meaningful for rice 
disease resistance breeding.},
DOI = {10.32604/phyton.2020.08548}
}