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GrainGenes Reference Report: TAG-117-1225

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Reference	TAG-117-1225
Title	A major QTL for durable leaf rust resistance widely exploited in durum wheat breeding programs maps on the distal region of chromosome arm 7BL.
Journal	Theoretical and Applied Genetics
Year	2008
Volume	117
Pages	1225-1240
Author	[ Hide all but 1 of 8 ] Maccaferri M Mantovani P Tuberosa R DeAmbrogio E Giuliani S Demontis A Massi A Sanguineti MC
Abstract	A recombinant inbred line (RIL) population and a set of advanced lines from multiple crosses were used to investigate the leaf rust (Puccinia triticina Eriks.) resistance carried by the durum wheat cultivar Creso and its derivatives (Colosseo and Plinio). One hundred seventy-six RILs from the cross Colosseo x Lloyd were tested under artificial rust inoculation in the field. The response at the seedling stage was also investigated. A major QTL (QLr.ubo-7B.2) for leaf rust resistance controlling both the seedling and the adult open field based-response was mapped on 7BL, with the favourable allele inherited from Colosseo. QLr.ubo-7B.2 showed R (2) and LOD peak values for the area under disease progress curve (AUDPC) equal to 72.9% and 44.5, respectively. The presence and location of QLr.ubo-7B.2 was validated by a linkage disequilibrium-based test using two-year field data of 62 advanced lines from 21 crosses with Creso, Colosseo or Plinio as resistance donors. QLr.ubo-7B.2 maps in a gene-dense region (7BL10-0.78-1.00) carrying several genes/QTLs in wheat and barley for resistance to rusts and other fungal diseases.
External Databases	http://dx.doi.org/10.1007/s00122-008-0857-5 PubMed: 18712342 https://doi.org/10.1007/s00122-008-0857-5
QTL	QLr.CoxLd-2A.1 [ Show all 12 ]
Trait Study	Reaction to leaf rust, Colosseo x Lloyd, Maccaferri 2008a

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