International Journal of Advanced Biochemistry Research

Biochem
Journal

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Vol. 7, Special Issue 2, Part F (2023)

Molecular marker assisted selection of introgressed four bacterial blight resistance genes (Xa4, Xa7, Xa13 and Xa21) in the genetic background of Mahamaya

Author(s): Aafreen Khan, UK Khare and SN Singh
Abstract: Bacterial leaf blight (BLB) of rice is one of the important constrains in rice production. BLB is caused by gram negative bacterium Xanthomonas oryzae pv oryzae. Host plant resistant are being used to develop improves varieties of rice by incorporating BB- resistant genes in the genetic background of mega rice cultivars. Present study was carried out to incorporate four bacterial blight resistant genes (Xa4, Xa7, xa13 and Xa21) in the genetic background Mahamaya: An important variety of Chhattisgarh region. Segregating populations were screened against seven isolates of Xoo collected from Chhattisgarh region. Foreground selection was carried out for the target resistance genes using gene-specific PCR-based markers. Eleven different gene combinations found in selected lines in segregating population. Xoo isolates were also checked for their pathogenic diversity to know best combination of resistance genes for breeding program.
Pages: 424-427  |  235 Views  97 Downloads


International Journal of Advanced Biochemistry Research
How to cite this article:
Aafreen Khan, UK Khare, SN Singh. Molecular marker assisted selection of introgressed four bacterial blight resistance genes (Xa4, Xa7, Xa13 and Xa21) in the genetic background of Mahamaya. Int J Adv Biochem Res 2023;7(2S):424-427. DOI: 10.33545/26174693.2023.v7.i2Sf.246
International Journal of Advanced Biochemistry Research
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