Indian Society of Genetics & Plant Breeding

Molecular marker assisted back cross breeding for effective transfer of Lr19 in wheat (Triticum aestivum L.)

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The gene Lr19, derived from Agropyron elongatum
provides effective resistance against leaf rust in Northern
India. To develop improved wheat lines in the background
of HS240, HS295, rust resistance from FLW20 possessing
Lr19 was involved to generate back cross populations and
confirm resistance through host-pathogen interaction and
molecular marker. The SCAR marker SCS265512 was used to
validate Lr19 in back cross plants transferred from FLW20.
Results of HPI test and molecular marker assisted validation
for Lr19 showed 88-93 percent consistency, indicating that
both the techniques are mutual exclusive for effective
selection of Lr19. Fixed gene populations are now ready
for station trials. 

Keywords: Wheat, SCAR marker, Lr19, leaf rust


Year: 2015
Volume: 75
Issue: 2
Article DOI: 10.5958/0975-6906.2015.00039.5
Print ISSN: 0019-5200
Online ISSN: 0975-6906


S. C. Bhardwaj,Deepak Sharma info_circle
Shilpi Kumari,K. V. Prabhu info_circle

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