Abiotic and biotic stress tolerance in rice: Recent advances in molecular breeding approaches

Rice is subjected to numerous biotic and abiotic stress. Widespread genetic variation for such stress tolerance has spurred their detection and exploitation in breeding facilitated by molecular markers. Gene discovery through QTL mapping approaches has been developed with the recent advances in molecular genomics. Two approaches that have been commonly used for genetic mapping, e.g., linkage analysis and association or linkage disequilibrium (LD) analysis, are the most widely used approaches in rice. The use of these two approaches has resulted in the identification of QTLs and their allelic variation for use in breeding quite successfully. This has been discussed in detail here.