Genetic Mapping of Loci for Resistance to Stem Rust in a Tetraploid Wheat Collection
| العنوان: | Genetic Mapping of Loci for Resistance to Stem Rust in a Tetraploid Wheat Collection |
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| المؤلفون: | Nicola Pecchioni, Francesca Desiderio, Giuseppe Petruzzino, Antonio Blanco, Elisabetta Mazzucotelli, Anna M. Mastrangelo, Agata Gadaleta, Brian J. Steffenson, Antonietta Saccomanno, Oadi Matny, Daniela Marone, Pasquale De Vita, Giovanni Laidò |
| المصدر: | International Journal of Molecular Sciences International Journal of Molecular Sciences, Vol 19, Iss 12, p 3907 (2018) Volume 19 Issue 12 |
| بيانات النشر: | MDPI, 2018. |
| سنة النشر: | 2018 |
| مصطلحات موضوعية: | 0106 biological sciences, 0301 basic medicine, Quantitative Trait Loci, Quantitative trait locus, Plant disease resistance, Biology, Stem rust, tetraploid wheat, 01 natural sciences, Rust, Catalysis, Article, Chromosomes, Plant, Inorganic Chemistry, lcsh:Chemistry, 03 medical and health sciences, Gene mapping, Resistant loci, Tetraploid wheat, Basidiomycota, Chromosome Mapping, Genetic Loci, Genome-Wide Association Study, Plant Diseases, Plant Proteins, Tetraploidy, Triticum, Disease Resistance, Physical and Theoretical Chemistry, Association mapping, Molecular Biology, Gene, lcsh:QH301-705.5, Spectroscopy, Puccinia, Genetics, Organic Chemistry, fungi, food and beverages, General Medicine, biology.organism_classification, Computer Science Applications, 030104 developmental biology, lcsh:Biology (General), lcsh:QD1-999, stem rust, resistant loci, 010606 plant biology & botany |
| الوصف: | Stem rust, caused by Puccinia graminis f. sp. tritici (Pgt), is a major biotic constraint to wheat production worldwide. Disease resistant cultivars are a sustainable means for the efficient control of this disease. To identify quantitative trait loci (QTLs) conferring resistance to stem rust at the seedling stage, an association mapping panel consisting of 230 tetraploid wheat accessions were evaluated for reaction to five Pgt races under greenhouse conditions. A high level of phenotypic variation was observed in the panel in response to all of the races, allowing for genome-wide association mapping of resistance QTLs in wild, landrace, and cultivated tetraploid wheats. Twenty-two resistance QTLs were identified, which were characterized by at least two marker-trait associations. Most of the identified resistance loci were coincident with previously identified rust resistance genes/QTLs however, six regions detected on chromosomes 1B, 5A, 5B, 6B, and 7B may be novel. Availability of the reference genome sequence of wild emmer wheat accession Zavitan facilitated the search for candidate resistance genes in the regions where QTLs were identified, and many of them were annotated as NOD (nucleotide binding oligomerization domain)-like receptor (NLR) genes or genes related to broad spectrum resistance. |
| وصف الملف: | application/pdf |
| اللغة: | English |
| تدمد: | 1422-0067 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::83018db4eefd2d2f9e4735b0c074a175 http://europepmc.org/articles/PMC6321032 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....83018db4eefd2d2f9e4735b0c074a175 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 14220067 |
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