Frontiers in Plant Science (Mar 2022)

Research Progress on Cloning and Function of Xa Genes Against Rice Bacterial Blight

  • Yong Yang,
  • Yuhang Zhou,
  • Yuhang Zhou,
  • Jia Sun,
  • Jia Sun,
  • Weifang Liang,
  • Weifang Liang,
  • Xinyu Chen,
  • Xinyu Chen,
  • Xuming Wang,
  • Jie Zhou,
  • Chulang Yu,
  • Junmin Wang,
  • Shilu Wu,
  • Shilu Wu,
  • Xiaoming Yao,
  • Yujie Zhou,
  • Jie Zhu,
  • Chengqi Yan,
  • Bingsong Zheng,
  • Jianping Chen,
  • Jianping Chen

DOI
https://doi.org/10.3389/fpls.2022.847199
Journal volume & issue
Vol. 13

Abstract

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Bacterial blight (BB) of rice caused by Xanthomonas oryzae pv. oryzae (Xoo) is one of the most serious bacterial diseases that hinder the normal growth and production of rice, which greatly reduces the quality and yield of rice. The effect of traditional methods such as chemical control is often not ideal. A series of production practices have shown that among the numerous methods for BB controlling, breeding and using resistant varieties are the most economical, effective, and environmentally friendly, and the important basis for BB resistance breeding is the exploration of resistance genes and their functional research. So far, 44 rice BB resistance genes have been identified and confirmed by international registration or reported in journals, of which 15 have been successfully cloned and characterized. In this paper, research progress in recent years is reviewed mainly on the identification, map-based cloning, molecular resistance mechanism, and application in rice breeding of these BB resistance genes, and the future influence and direction of the remained research for rice BB resistance breeding are also prospected.

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