The Indian Journal of Genetics and Plant Breeding
SCOPUSWeb of Science
  • Year: 2009
  • Volume: 69
  • Issue: 3

Genetics of white rust resistance in [Brassica juncea (L.) Czern. & Coss.] and allelic relationship between interspecific sources of resistance

  • Author:
  • M. Vignesh1, D. K. Yadava1,, V. Sujata1, T. Mohapatra2, Neelu Jain1, Anil Kumar Yadav1, Divya Malik1, M. S. Yadav3, K. V. Prabhu1
  • Total Page Count: 4
  • Page Number: 205 to 208

1Division of Genetics, Indian Agricultural Research Institute, New Delhi, 110 012.

2National Research Centre on Plant Biotechnology, Indian Agricultural Research Institute, New Delhi, 110 012.

3National Centre for Integrated Pest Management, Indian Agricultural Research Institute, New Delhi, 110 012.

*Corresponding author's E-mail: dkygenet@gmail.com

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.

Keywords

Indian mustard, white rust, inheritance, resistance, allelic relationship