Abstract
Plant height in wheat (Triticum aestivum L. em Thell) is known to be under polygenic control. Crosses involving genes Rht-B1 and Rht-D1, located on chromosomes 4BS and 4DS, respectively, have shown that these genes have major effects. Two RFLP loci were found to be linked to these two genes (Xfba1-4B with Rht-B1 and Xfba211-4D with Rht-D1) by genotyping a population of F1-derived doubled-haploid lines [‘Courtot’ (Rht-B1b+Rht-D1b)בChinese Spring’]. Using a well-covered molecular marker map, we detected three additional regions and one interaction influencing plant height. These regions, located on chromosome arms 4BS (near the locus Xglk556-4B), 7AL (near the locus Xglk478-7A) and 7BL (near the locus XksuD2-7B) explained between 5% and 20% of the variability for this trait in this cross. The influence of 2 loci from chromosome 4B (Xfba1-4B and Xglk556-4B) suggests that there could be a duplication of Rht-B1 on this chromosome originating from Cv ‘Courtot’. Moreover, an interaction effect between loci from chromosome arms 1AS (near the locus Xfba393-1A) and 1BL (near the locus Xcdo1188-1B) was comparable to or even higher than those of the Rht-B1b and Rht-D1b alleles. A model including the main effects of the loci from chromosomes 4B and 4D (Xfba1-4B, Xglk556-4B and Xfba211-4D) and the interaction effect between Xfba393-1A and Xcdo1188-1B is proposed, which explains about 50% of the variation in plant height. The present results are discussed in relation to those obtained using nullisomic or substitution lines.
Similar content being viewed by others
Author information
Authors and Affiliations
Additional information
Received: 13 June 1997 / Accepted: 13 October 1997
Rights and permissions
About this article
Cite this article
Cadalen, T., Sourdille, P., Charmet, G. et al. Molecular markers linked to genes affecting plant height in wheat using a doubled-haploid population. Theor Appl Genet 96, 933–940 (1998). https://doi.org/10.1007/s001220050823
Issue Date:
DOI: https://doi.org/10.1007/s001220050823