Detection of QTLs for crossability in wheat using a doubled haploid population - INRAE - Institut national de recherche pour l’agriculture, l’alimentation et l’environnement Access content directly
Journal Articles TAG Theoretical and Applied Genetics Year : 1998

Detection of QTLs for crossability in wheat using a doubled haploid population

Abstract

 An intervarietal molecular-marker map was used for the detection of genomic regions influencing crossability between wheat (Triticum aestivum L. em Thell) and rye (Secale cereale L.). Analysis of deviance and logistic marker-regression methods were conducted on data from doubled haploid lines from a cross between “Courtot” and “Chinese Spring”. A major quantitative trait locus (QTL) involved in crossability, associated with the marker Xfba367-5B, was detected on the short arm of chromosome 5B. An additional locus, Xwg583-5B, was indicated on the long arm of chromosome 5B. This minor QTL might correspond to Kr1 which was presumed to be the major gene controlling crossability. Another locus of the genome, Xtam51-7A on chromosome 7A, was significantly associated with this trait. Alleles of “non-crossability” were contributed by the non-crossable cultivar “Courtot”. The three-marker model explains 65% of the difference in crossability between the two parents. The present results are discussed in relation to those previously carried out to locate the Kr genes by using the telocentric mapping technique.

Dates and versions

hal-02698572 , version 1 (01-06-2020)

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Marie-Hélène Tixier, Pierre Sourdille, Gilles Charmet, Georges G. Gay, Corinne Jaby, et al.. Detection of QTLs for crossability in wheat using a doubled haploid population. TAG Theoretical and Applied Genetics, 1998, 97, pp.1076-1082. ⟨10.1007/s001220050994⟩. ⟨hal-02698572⟩
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