Summary
Restriction fragment length polymorphism (RFLP) mapping was attempted using 18 cDNA clones, 14 anonymous and 4 of known function, which had been shown to have homologous DNA sequences on the group 7 chromosomes of wheat. The loci identified by these probes have been mapped on one or more chromosomes in this homoeologous group using linkage data derived from various F2, random inbred, doubled haploid and single chromosome recombinant populations. The maps also include three isozyme loci, five disease resistance loci, two anthocyanin pigment loci and a vernalisation response locus. The mapping data have been used to determine the extent of map co-linearity over the A, B and D genomes, the degree of RFLP variability in the three genomes and the relative efficiency of various restriction enzymes in detecting RFLPs in wheat. The strategy for future mapping in wheat, particularly the use of “alien” genomes or segments, such as that from Aegilops ventricosa used here, is discussed.
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Communicated by J. W. Snape
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Chao, S., Sharp, P.J., Worland, A.J. et al. RFLP-based genetic maps of wheat homoeologous group 7 chromosomes. Theoret. Appl. Genetics 78, 495–504 (1989). https://doi.org/10.1007/BF00290833
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DOI: https://doi.org/10.1007/BF00290833