Jia Chen

Tropical Animal Resources Research Center, Hainan Institute of Tropical Agricultural Resources, Sanya, 572025, Hainan, China
Author    Correspondence author
Molecular Entomology, 2024, Vol. 15, No. 1   
Received: 26 Dec., 2023    Accepted: 06 Feb., 2024    Published: 26 Feb., 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.

This study aims to explore the genetic mechanisms and breeding strategies employed to enhance rice varietal resistance to insect pests. The primary goal is to provide a comprehensive understanding of the current advancements in genetic traits, resistance mechanisms, and breeding techniques that contribute to the development of insect-resistant rice varieties. Significant progress has been made in identifying and mapping resistance genes and quantitative trait loci (QTLs) associated with insect resistance in rice. For instance, the identification of novel resistance genes such as Bph from wild rice species and BPH from cultivated varieties has provided new avenues for breeding. Advanced molecular approaches, including marker-assisted selection and RNA interference technology, have been successfully integrated with conventional breeding methods to enhance resistance. The development of multi-resistance rice varieties through transgene stacking systems has also shown promising results in conferring resistance to multiple pests and diseases. Additionally, the suppression of serotonin biosynthesis has been identified as a novel mechanism to enhance resistance against planthoppers and stem borers. The integration of conventional and molecular breeding techniques has significantly improved the development of insect-resistant rice varieties. These advancements have important implications for sustainable rice cultivation and effective pest management. The continuous identification and characterization of resistance genes, along with the application of advanced genomic tools, will further enhance the durability and effectiveness of insect-resistant rice varieties.

Rice; Genetic resistance; Insect pests; Breeding strategies; Pest management