A single NLR gene confers resistance to leaf and stripe rust in wheat

Author:

Sharon Amir1ORCID,Sharma Davinder1,Avni Raz2,Gutierrez-Gonzalez Juan3ORCID,Kumar Rakesh2ORCID,Sela Hanan4ORCID,Prusty Manas2,Cohen Arava2,Molnar Istvan5ORCID,Holušová Kateřina5,Said Mahmoud6ORCID,Doležel Jaroslav5ORCID,Millet Eitan2,Khazan Sofia2,Landau Udi2,Bethke Gerit7,Ezrati Smadar2,Ronen Moshe2,Maatuk Oxana2,Eilam Tamar2,Manisterski Jacob2,Ben-Yehuda Pnina2,Anikster Yehoshua2,Matny Oadi8ORCID,Steffenson Brian8ORCID,Mascher Martin9ORCID,Brabham Helen10,Moscou Matthew11ORCID,Liang Yong12,Yu Guotai13,Wulff Brande13ORCID,Muehlbauer Gary8ORCID,Minz-Dub Anna2

Affiliation:

1. Institute for Cereal Crops Improvement

2. Institute for Cereal Crops Research, School of Plant Sciences and Food Security, Tel Aviv University, Tel Aviv, Israel 6997801

3. University of Leon

4. University of Haifa

5. Institute of Experimental botany of the Czech Academy of Sciences

6. Institute of Experimental Botany of the Czech Academy of Sciences, Centre of the Region Haná for Biotechnological and Agricultural Research, Olomouc, Czechia

7. Department of Plant Biology, University of Minnesota, St. Paul, Minnesota 55108

8. University of Minnesota

9. Leibniz Institute of Plant Genetics and Crop Plant Research (IPK) Gatersleben

10. The Sainsbury Laboratory, Norwich Research Park, Norwich, NR4 7UH, UK

11. USDA-ARS

12. School of Plant Sciences and Food Security, Tel Aviv University, Tel Aviv, Israel, 69978

13. King Abdullah University of Science and Technology

Abstract

Abstract Nucleotide-binding site leucine-rich repeat (NLR) disease-resistance genes typically confer resistance against races of a single pathogen. We report that Lr/Yr548, an NLR gene from Aegilops sharonensis and Aegilops longissima, confers specific resistance against Puccinia triticina (Pt) and P. striiformis tritici (Pst) that cause leaf and stripe rust, respectively. Lr/Yr548 prevented disease development in wheat introgression as well as transgenic wheat lines. Comparative analysis of Lr/Yr548 and all cloned Triticeae NLR disease-resistance genes showed that Lr/Yr548 contains a distinctive coiled-coil domain and that it is unique to Ae. sharonensis and Ae. longissima. A phylogenetic analysis indicated multiple events of gene flow of Lr/Yr548 between the two species, and suggested loss of resistance in susceptible isolates. The confinement of Lr/Yr548 to Ae. longissima and Ae. sharonensis and the cross resistance that it confers against Pt and Pst in wheat highlight the potential of these species as sources of novel disease-resistance genes for wheat improvement.

Publisher

Research Square Platform LLC

Reference117 articles.

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