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To incorporate durable resistance against bacterial blight, a major disease rice, three resistance genes, xa 5, xa13 and Xa21, from IRBB 60 were transferred through marker-assisted backcrossing using RG 556, RG 136 and pTA248 markers linked to the three genes to supplement the Xa4 gene present in Lalat, a popular rice cultivar. Effective selection enabled the transfer in three back-crosses and a generation...
Breeding for resistance against Bacterial blight (BB), a destructive disease in rice, is a major challenge because of the rich diversity of the pathogen, Xanthomonas oryzae pv. oryzae. Three resistance genes i.e. xa5, xa13 and Xa21 were transferred from IRBB 60 through marker-assisted backcross breeding to supplement the Xa4 gene present in Tapaswini, an elite cultivar having a wide coverage. The...
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