Genetics of white rust resistance in [Brassica juncea (L.) Czern. and Coss.] and allelic relationship between interspecific sources of resistance
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Abstract
The breakdown of resistance is the prime concern to search for new genes to develop a durable resistance against white rust in mustard. The present study was undertaken to know the mode of inheritance using indigenously developed resistance source and allelic relationship of genes for white rust resistance in two different sources viz. Bio-YSR and NPC-12 from Brassica juncea and B. carinata, respectively. The inheritance pattern of resistance genes in donors when crossed with two widely cultivated, highly susceptible cultivars, Varuna and Bio-902 (Pusa Jai Kisan), indicated the presence of a single dominant gene for white rust resistance. Cross between the resistant sources from B. juncea and B. carinata segregated in 15:1 (resistant: susceptible) ratio in F2 generation, indicating the involvement of two different genes governing white rust resistance in these sources.
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Vignesh, M., Yadava, D. K., Sujata, V., Mohapatra, T., Jain, N., Yadav, A. K., Malik, D., Yadav, M. S., & Prabhu, K. V. (2009). Genetics of white rust resistance in [Brassica juncea (L.) Czern. and Coss.] and allelic relationship between interspecific sources of resistance. INDIAN JOURNAL OF GENETICS AND PLANT BREEDING, 69(03), 205–208. https://doi.org/.
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Research Article
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