We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Marker-assisted selection for biotic stress (Bacterial leaf blight and gall midge) tolerance in Bc<sub>4</sub>F<sub>4</sub> generation of rice (Oryza sativa L.).
- Authors
R., Krishnakumar; Kumaravadivel, N.
- Abstract
Bacterial blight (BB) of rice caused by the pathogen Xanthomonas oryzae pv. oryzae and the insect gall midge (GM) (Orseolia oryzae) are two major limitations of rice production. The present study was carried out to improve CO 43 a popular variety of Tamil Nadu for BB and GM resistance through marker assisted backcross breeding. Two sets of genes Xa21 and xa13 for bacterial blight resistance and Gm1 and Gm4 for gall midge resistance were used for this study. A total of 95 plants in BC4F4 generation were genotyped with SSR markers RM1328, RM22550, xa13 prom and pTA248 for the genes Gm1, Gm4, xa13 and Xa21 respectively. Artificial screening for bacterial blight screening was conducted in glass house condition and gall midge screening was conducted in the field condition. The lines selected for bacterial blight and gall midge resistance genes recorded a high level of resistance than the recurrent parent CO43.
- Subjects
RICE disease &; pest resistance; GENETIC markers in plants; GALL midges; BLIGHT diseases (Botany); RICE breeding
- Publication
Electronic Journal of Plant Breeding, 2018, Vol 9, Issue 1, p275
- ISSN
0975-928X
- Publication type
Article
- DOI
10.5958/0975-928X.2018.00032.7