Genetic study of Ascochyta blight resistance in chickpea and lentil
Date
2002-02-20
Authors
Tar’an, B.
Buchwaldt, L.
Breitkreutz, C.
Tullu, A.
Warkentin, T.
Banniza, S.
Vandenberg, A.
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Ascochyta blight is responsible for severe crop losses in most chickpea and lentil production areas around the world. The research was conducted to study the genetic basis for Ascochyta blight resistance in chickpea and lentil by means of QTL analysis, and PCR-based approaches to identify resistance gene analogues (RGA) sequences in the lentil genome. An AFLP and three SSR markers were linked to the gene(s) for Ascochyta resistance in a chickpea population derived from a cross between CDC Chico and CDC Marengo. Two QTL that explained 36 % and 29 % of the disease reaction variability were identified in a lentil RI population derived from a cross between ILL5588 and L692-16-1. These markers were converted into SCAR markers to simplify their use for marker-assisted selection.
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Part Of
Soils and Crops Workshop