A major QTL for durable leaf rust resistance widely exploited in durum wheat breeding programs maps on the distal region of chromosome arm 7BL.

TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik
Marco MaccaferriMaria Corinna Sanguineti

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 R2 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.

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Citations

May 20, 2011·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Marco MaccaferriMaria Corinna Sanguineti
Feb 3, 2012·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Sybil A Herrera-FoesselEvans S Lagudah
May 9, 2012·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·R S RenZ J Zhang
Jan 8, 2013·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Irma TerraccianoRoberto Tuberosa
Jul 30, 2011·Genome Génome / Conseil National De Recherches Canada·P VijayanK E Bett
Jun 15, 2014·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Arūnas P VerbylaKlara L Verbyla
May 26, 2011·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Daniele TrebbiRoberto Tuberosa
Aug 9, 2012·Molecular Genetics and Genomics : MGG·Daniela MaroneAnna M Mastrangelo
Jun 7, 2014·Phytopathology·Alexander LoladzeKarim Ammar
Feb 12, 2013·Molecular Breeding : New Strategies in Plant Improvement·A SinghT G Fetch
Feb 18, 2016·Journal of Experimental Botany·Marco MaccaferriRoberto Tuberosa
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Sep 24, 2016·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Jyoti SinglaBeat Keller
Feb 11, 2019·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Sandra E BranhamW Patrick Wechter
Mar 5, 2013·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Elena Pérez-VegaJuan José Ferreira
Apr 10, 2019·Nature Genetics·Marco MaccaferriLuigi Cattivelli
Jan 26, 2021·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Peipei ZhangDaqun Liu
Feb 11, 2021·Plants·Pasqualina ColasuonnoJose Miguel Soriano
May 26, 2020·Fungal Biology·Pramod PrasadP K Gupta

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