Abstract
Rice root-knot nematode, Meloidogyne graminicola is one of the major pests of rice cropping system and is responsible for considerable yield reductions. Out of various management options tried so far, the resistance against M. graminicola in rice could be the most valuable in alleviating this problem. In present study a rice cultivar Abhishek exhibited a strong resistance with least number of galls (2galls/plant) and a kind of necrotic browning of roots which is typical of R-gene mediated resistance response. In order to map the gene governing resistance to root-knot nematode, the cultivar Abhishek was crossed with the Bangla Patni, a highly susceptible genotype to generate F2 mapping population. Using bulked segregant analysis, a marker HvSSR10–21 was identified to be putatively linked with the resistant locus in cv. Abhishek with significant LOD score. The significant LOD score value indicates the linkage between identified marker and the resistant locus against M. graminicola. We designate this gene as Mg1(t).
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Indian Journal of Genetics and Plant Breeding (The)
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
