ArticleTAG. Theoretical and applied genetics. Theoretische und angewandte Genetik2007
Identification of QTL for reaction to three races of Colletotrichum trifolii and further analysis of inheritance of resistance in autotetraploid lucerne.
Article in TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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10 citing papers in PubMed, 34 citations in OpenAlex.
- QTL detection and genomic prediction for resistance to anthracnose in alfalfa (Medicago sativa).The plant genome · 2025Article
- Phenotypic variation and quantitative trait loci for resistance to southern anthracnose and clover rot in red clover.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2022Article
- Construction of a high-density genetic map and localization of grazing-tolerant QTLs inFrontiers in plant science · 2022Article
- Biotechnological Perspectives of Omics and Genetic Engineering Methods in Alfalfa.Frontiers in plant science · 2020Review
- Genotyping-by-sequencing-based genome-wide association studies on Verticillium wilt resistance in autotetraploid alfalfa (Medicago sativa L.).Molecular plant pathology · 2017Article
- Genome-Wide Association Mapping of Loci Associated with Plant Growth and Forage Production under Salt Stress in Alfalfa (Frontiers in plant science · 2017Article
- Article
- Transfer of anthracnose resistance and pod coiling traits from Medicago arborea to M. sativa by sexual reproduction.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2008Article
- Genetic and physical localization of an anthracnose resistance gene in Medicago truncatula.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2007Article
- Identification of QTL for resistance and susceptibility to Stagonospora meliloti in autotetraploid lucerne.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2007Article
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Authors and funding
7 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Anthracnose, caused by Colletotrichum trifolii, is one of the most serious diseases of lucerne worldwide. The disease is managed through deployment of resistant cultivars, but new pathotypes present a challenge to the successful implementation of this strategy. This paper reports the genetic map locations of quantitative trait loci (QTL) for reaction to races 1, 2 and 4 of C. trifolii in a single autotetraploid lucerne clone, designated W126 from the Australian cv. Trifecta. Resistance was mapped in a backcross population of 145 individuals, and reaction was assessed both by spray and injection inoculation of stems. Resistance to injection inoculation with races 1 and 4 was incompletely dominant and closely linked (phenotypic markers 2.2 cM apart); these resistances mapped to a linkage group homologous to Medicago truncatula linkage group 8. When the spray inoculation data were subjected to QTL analysis, the strongest QTL for resistance was located on linkage group 8; six QTL were identified for race 1 and four for race 4. Resistance to race 2 was incompletely recessive; four QTL were identified and these include one QTL on linkage group 4 that was also identified for race 1. Modelling of the interactions between individual QTL and marker effects allowed a total of 52-63% of the phenotypic variation to be described for each of the different races. These markers will have value in breeding lucerne, carrying multiple sources of resistance to the three known races of C. trifolii.
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