Indian Society of Genetics & Plant Breeding

Development of bread wheat (Triticum aestivum L.) lines with specific rust resistance genes and their authentication through molecular markers

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High yielding cultivars of wheat viz. PBW343, UP2338 and
WH542 were used to incorporate multiple rust resistance
genes against leaf, stem and stripe rusts from winter wheat
or agronomically inferior wheat lines carrying known rust
resistance genes. Genetic stocks were evaluated for
seedling resistance as well as field resistance with
prevalent and virulent pathotypes of Puccinia triticina,
Puccinia graminis tritici and Puccinia striiformis. With the
help of classical tools resistance genes were fixed in the
early generation. Incorporation of resistance gene in the
genetic stock viz. Yr5, Yr10, Yr15, YrSP, Lr9, Lr19, Lr24,
Lr26, Lr32, Lr39, Lr28, Lr42, Lr45 was confirmed through
allelism tests and presence of leaf rust resistance genes
viz.Lr9, Lr19, Lr24 and Lr26 were also authenticated
through molecular markers. Rust resistance and utility of
genetic stocks are discussed.

Keywords: Wheat, leaf rust, stem rust, stripe rust, rust resistance, molecular markers, gene pyramiding


Year: 2008
Volume: 68
Issue: 2
Article DOI: N/A
Print ISSN: 0019-5200
Online ISSN: 0975-6906


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