Genetic Evaluation of 269 Rice Landraces for Grain Quality and Blast Resistance Genes
Vol. 134 No. 1S-2 (2025), Special Issue: CBA 2025
Vol. 134 No. 1S-2 (2025)

Genetic Evaluation of 269 Rice Landraces for Grain Quality and Blast Resistance Genes

Special Issue: CBA 2025
https://doi.org/10.26459/hueunijns.v134i1S-2.7959
Published 2025-12-17
Thi Thuy Trang Tong
Department of Genetic and Plant Breeding, College of Agriculture, Can Tho University, Vietnam
Thi Phuong Du Ngo
Department of Genetic and Plant Breeding, College of Agriculture, Can Tho University, Vietnam
In Do Tran
Department of Genetic and Plant Breeding, College of Agriculture, Can Tho University, Vietnam
An Tinh Pham
Department of Genetic and Plant Breeding, College of Agriculture, Can Tho University, Vietnam
Pham Ngoc Diep Nguyen
Department of Genetic and Plant Breeding, College of Agriculture, Can Tho University, Vietnam
Nguyen Ngoc Dung Bui
Department of Genetic and Plant Breeding, College of Agriculture, Can Tho University, Vietnam
Thi Be Tu Pham
Department of Genetic and Plant Breeding, College of Agriculture, Can Tho University, Vietnam
Huynh Ky*
Department of Genetic and Plant Breeding, College of Agriculture, Can Tho University, Vietnam
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Keywords

BADH2, GS3, Pi54 and Pi-ta, Landraces rice, Wx

How to Cite

1.
Tong TTT, Ngo TPD, Tran ID, Pham AT, Nguyen PND, Bui NND, Pham TBT, Huynh K. Genetic Evaluation of 269 Rice Landraces for Grain Quality and Blast Resistance Genes. hueuni-jns [Internet]. 2025Dec.17 [cited 2025Dec.27];134(1S-2):89-104. Available from: https://jos.hueuni.edu.vn/index.php/hujos-ns/article/view/7959
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Abstract

The overuse of agrochemicals has intensified the focus on breeding rice varieties with enhanced grain quality and resistance to major diseases. This study aimed to evaluate genetic variation related to grain quality and blast resistance in landrace rice varieties using gene-specific molecular markers. Five target genes, including Wx, BADH2, GS3, Pi54, and Pi-ta, were analyzed for their association with key traits. Among the accessions, 52 carried the Wx allele associated with low amylose content, 14 possessed the aromatic BADH2 allele, and 99 carried the mutant GS3 allele associated with long grain. For blast resistance, 17 genotypes harbored Pi54 and 97 carried Pi-ta, both major resistance genes. The research highlights valuable allelic diversity for use in marker-assisted selection and the development of elite rice cultivars with improved grain quality and disease resistance.

https://doi.org/10.26459/hueunijns.v134i1S-2.7959
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