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Genetic mapping of anthracnose resistance in white lupin

Alkemade, Joris; Messmer, Monika; Arncken, Christine; Leska, Agata; Annicchiarico, Paolo; Nazzicari, Nelson; Voegele, Ralf T.; Finckh, Maria R. and Hohmann, Pierre (2021) Genetic mapping of anthracnose resistance in white lupin. In: BREEDING AND SEED SECTOR INNOVATIONS FOR ORGANIC FOOD SYSTEMS, Institute of Agricultural Resources and Economics, Latvia, pp. 17-18.

[thumbnail of EUCARPIA_2021_Abstract_FiBL_anthracnose.pdf] PDF - Published Version - English


White lupin (Lupinus albus) is a valuable grain legume with a high protein content and quality, contributing to soil fertility (Monteiro et al., 2014, Lambers et al., 2013). Its high yield potential could make it a sustainable alternative for imported soybean in Europe (Lucas et al., 2015). However, lupin anthracnose, caused by the air- and soilborne fungus Colletotrichum lupini severely limits cultivation as low levels of seed infestation can already cause total yield loss (Talhinhas et al., 2016). Host resistance is crucial for managing anthracnose but a better insight into the genetic basis is required. We developed a high-throughput phenotyping tool that identifies field-relevant anthracnose resistance under controlled conditions. For inoculation, we identified a local, highly virulent C. lupini strain. Phylogenetic analyses revealed that the strain belongs to a globally dispersed genetic group corresponding to Dubrulle et al.’s (2020) C. lupini group II. Using the developed tool we phenotyped a diverse collection of 200 white lupin accessions, revealing a strong segregation between susceptible and resistant plants, potentially holding novel sources of resistance. Genotyping-bysequencing was performed and the generated single-nucleotide polymorphic markers (SNPs) are currently being used for genetic mapping. Quantitative trait loci (QTLs) for anthracnose resistance will be presented aiding to improve and speed up white lupin breeding programs.

EPrint Type:Conference paper, poster, etc.
Type of presentation:Poster
Agrovoc keywords:
Lupinus albus, Colletotrichum lupini, breeding, GWAS, phenotyping
Subjects: Crop husbandry > Breeding, genetics and propagation
Research affiliation: Switzerland > FiBL - Research Institute of Organic Agriculture Switzerland > Crops > Seeds and breeding
European Union > Horizon 2020 > Liveseed
H2020 or FP7 Grant Agreement Number:727230
Deposited By: Pecetti, Dr Luciano
ID Code:39935
Deposited On:31 May 2021 08:28
Last Modified:31 May 2021 11:25
Document Language:English
Refereed:Not peer-reviewed

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