Genetic Variation Dissection of Rice Blast Resistance Using an Indica Population

doi:10.1016/j.rsci.2020.05.001

Abstract

Mengchen Zhang, Zhonghua Wei, Xiaoping Yuan, Caihong Wang, Shan Wang, Xiaojun Niu, Xin Xu, Qun Xu, Yue Feng, Hanyong Yu, Yiping Wang, Zhiwei Zhu, Rongrong Zhai, Yaolong Yang, Xinghua Wei. Genetic Variation Dissection of Rice Blast Resistance Using an Indica Population[J]. Rice Science, 2020, 27(4): 255-258.

Figures/Tables 5

Fig. 1. Genetic structure and resistance level of indica population.A, Model-based population assignment using ADMIXTURE. B, Neighbor-joining tree based on Nei’s 1973 genetic distance. C, Principle component (PC) analysis showed by the first two genetic components. D, Comparison on average rate of resistance spectrum (RRS) of three major indica groups and a mix group. E, Group distribution of the resistant pool (61 varieties). F, Heat map shows the multiple resistance of 25 associated genomic loci.

Supplemental Fig. 1. Phenotypic value distribution of resistance against nine M. oryzae isolates.The last histogram displayed the distribution of rate of resistance spectrum (RRS).

Supplemental Fig. 2. Manhattan plots and Quantile-Quantile plots of GWAS.A and B, S102. C and D, S159. E and F, S182. G and H, S193. I and J, S212. K and L, S242. M and N, S252. O and P, S359. Q and R, S362. The threshold show P = 1× 10-3.

Supplemental Fig. 3. Linkage analysis of the associated single nucleotide ploymorphism on chromosome 12.The black triangular frame indicates the linked region from seq-rs5638 (Position: 9905544) to seq-rs5706 (Position: 13696562).

Supplemental Fig. 4. Statistical analysis on phenotypic effect of the 25 associated genomic loci.Boxplots display the average resistance value of each two alleles, and the blue color indicates the superior alleles.

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