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DNA Research Advance Access published online on May 26, 2007
DNA Research, doi:10.1093/dnares/dsm009
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© The Author 2007. Kazusa DNA Research Institute
The online version of this article has been published under an open access model. Users are entitled to use, reproduce, disseminate, or display the open access version of this article for non-commercial purposes provided that: the original authorship is properly and fully attributed; the Journal and Oxford University Press are attributed as the original place of publication with the correct citation details given; if an article is subsequently reproduced or disseminated not in its entirety but only in part or as a derivative work this must be clearly indicated. For commercial re-use, please contact journals.permissions@oxfordjournals.org

The First Genetic and Comparative Map of White Lupin (Lupinus albus L.): Identification of QTLs for Anthracnose Resistance and Flowering Time, and a Locus for Alkaloid Content{dagger}

Huyen T.T. Phan1, Simon R. Ellwood1,*, Kedar Adhikari2,3, Matthew N. Nelson4 and Richard P. Oliver1

1 Australian Centre for Necrotrophic Fungal Pathogens, SABC, Department of Health Sciences, Murdoch University, Murdoch 6150, Australia
2 Department of Agriculture and Food Western Australia, 3 Baron-Hay Court, South Perth 6151, Australia
3 Centre for Legumes in Mediterranean Agriculture, Faculty of Natural and Agricultural Sciences, University of Western Australia, Crawley 6009, Australia
4 School of Plant Biology, Faculty of Natural and Agricultural Sciences, The University of Western Australia, Crawley 6009, Australia

Received 7 March 2007 ; revised 13 April 2007

We report the first genetic linkage map of white lupin (Lupinus albus L.). An F8 recombinant inbred line population developed from Kiev mutant x P27174 [GenBank] was mapped with 220 amplified fragment length polymorphism and 105 gene-based markers. The genetic map consists of 28 main linkage groups (LGs) that varied in length from 22.7 cM to 246.5 cM and spanned a total length of 2951 cM. There were seven additional pairs and 15 unlinked markers, and 12.8% of markers showed segregation distortion at P < 0.05. Syntenic relationships between Medicago truncatula and L. albus were complex. Forty-five orthologous markers that mapped between M. truncatula and L. albus identified 17 small syntenic blocks, and each M. truncatula chromosome aligned to between one and six syntenic blocks in L. albus. Genetic mapping of three important traits: anthracnose resistance, flowering time, and alkaloid content allowed loci governing these traits to be defined. Two quantitative trait loci (QTLs) with significant effects were identified for anthracnose resistance on LG4 and LG17, and two QTLs were detected for flowering time on the top of LG1 and LG3. Alkaloid content was mapped as a Mendelian trait to LG11.

Key words: Lupinus albus; Medicago truncatula; Synteny; anthracnose

* To whom correspondence should be addressed. Tel. +61 08-9360-6323. Fax. +61 08-9360-6303. E-mail: s.ellwood{at}murdoch.edu.au

{dagger} Communicated by Satoshi Tabata.


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