Genetic analyses of adult-plant resistance in five cultivars of wheat (Triticum aestivum) to leaf rust (Puccinia triticina)


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Authors

  • S S Singh Indian Agriculture Research Institute, New Delhi
  • P Bahadur Indian Agriculture Research Institute, New Delhi
  • J B Singh Indian Agriculture Research Institute, New Delhi
  • Anita Barnwal Indian Agriculture Research Institute, New Delhi
  • J B Sharma Indian Agriculture Research Institute, New Delhi

Keywords:

Adult-plant resistance, Puccinia triticinia, Triticum aestivum, Inheritence

Abstract

Comparison of infection types produced by seedling test on 5 cultivars ('HS 240', 'PBW 343', 'HD 2687', 'UP 2425' and 'Raj 3765') of wheat (Triticum aestivum L. emend. Fiori & Paol.) with differentials (single gene lines) against 11 pathotypes of leaf rust (Puccinia triticina Erikss.) led to the postulation of presence of leaf-rust resistance gene Lr26 in cultivars 'HS 240', 'PBW 343', 'HD 2687', JP 2425' and Lr13 in 'Raj 3765'. Genetic analysis for adult-plant resistance in these 5 cultivars was carried out with 3 pathotypes (77-2, 77-5 and 104-2) of Puccinia triticina during 2000-2003, indicating the presence of an adult-plant resistance gene in 'HS 240', 'PBW 343', 'HD 2687', 'UP 2425' and 2 adult-plant resistance genes in 'Raj 3765'. Test of allelism with near-isogenic line Tc6 + Lr34 showed the presence ofLv34 in cultivars 'HS 240', 'PBW 343' and 'Raj 3765'. Analysis of F2, crosses among resistant cultivars indicated the presence of an unidentified gene tentatively named as APR1 in 'HD 2687', 'UP 2425' and 'Raj 3765'.

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Submitted

2011-08-23

Published

2005-10-05

Issue

Vol. 75 No. 10 (2005)

Section

Articles

License

The copyright of the articles published in The Indian Journal of Agricultural Sciences is vested with the Indian Council of Agricultural Research, which reserves the right to enter into any agreement with any organization in India or abroad, for reprography, photocopying, storage and dissemination of information. The Council has no objection to using the material, provided the information is not being utilized for commercial purposes and wherever the information is being used, proper credit is given to ICAR.

How to Cite

Singh, S. S., Bahadur, P., Singh, J. B., Barnwal, A., & Sharma, J. B. (2005). Genetic analyses of adult-plant resistance in five cultivars of wheat (Triticum aestivum) to leaf rust (Puccinia triticina). The Indian Journal of Agricultural Sciences, 75(10). https://epubs.icar.org.in/index.php/IJAgS/article/view/9190