Jingyan Yang^1,3 , Xianyu Wang^1,3 , Chunli Wang Wang^1,3 , Hanqi Li^1,3 , Yushan Yin^1,3 , Xiaolong Zhao^1,3 , Qian Zhu^1,2,3 , Lijuan Chen^1,2,3

1 Rice Research Institute, Yunnan Agricultural University, Kunming, 650201, Yunnan, China
2 The Key Laboratory for Crop Production and Smart Agriculture of Yunnan Province, Yunnan Agricultural University, Kunming, 650201, Yunnan,China
3 College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming, 650201, Yunnan, China
Author    Correspondence author
Molecular Microbiology Research, 2024, Vol. 14, No. 6   doi: 10.5376/mmr.2024.14.0030
Received: 20 Oct., 2024    Accepted: 30 Nov., 2024    Published: 15 Dec., 2024

This is an open access article published under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Yang J.Y., Wang X.Y., Wang C.L., Li H.Q., Yin Y.S., Zhao X.L., Zhu Q., and Chen L.J., 2024, Exploring genetic diversity of blast resistance in paddy and upland rice, Molecular Microbiology Research, 14(6): 277-289 (doi: 10.5376/mmr.2024.14.0030)

Rice blast, caused by the fungus Magnaporthe oryzae, is a significant threat to rice production globally. In this review, we highlight studies on the genetic diversity and resistance mechanisms against rice blast disease in paddy rice and upland rice varieties, summarize the genetic factors contributing to blast resistance in these rice types. Based on the studies on a combination of gene-specific markers, quantitative trait loci (QTL) mapping, and transcriptome sequencing, we compare key resistance genes and alleles, revealing a diverse range of blast resistance genes in the studied rice varieties, with some showing broad-spectrum and durable resistance. We also emphasize the importance of integrating these resistance genes into breeding programs to develop new rice varieties with enhanced resistance to blast disease. The systematical outlook provide valuable insights for future genomic studies, host-pathogen interaction research, and rice improvement strategies.

Rice blast resistance; Genetic diversity; Paddy rice; Upland rice; QTL mapping