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2. Introgression of peanut smut resistance from landraces to elite peanut cultivars (Arachis hypogaea L.)

Author

Marshall C. Lamb, María Alejandra Pérez, Paola C. Faustinelli, Juan H. Soave, Renee S. Arias, Alicia N. Massa, J. Guillermo Seijo, Sara J. Soave, Mónica Balzarini, Francisco Javier De Blas, Claudio Oddino, Marina Bressano, Victor S. Sobolev, and Mario I. Buteler

Subjects
Germoplasma silvetre, 0106 biological sciences, 0301 basic medicine, Germplasm, Heredity, Resistencia genética, Arachis, Epidemiology, Introgression, Plant Science, Plant Genetics, 01 natural sciences, INDEL Mutation, Medicine and Health Sciences, Plant Immunity, Introgresión, Disease Resistance, Resistencia a la enfermedad, Multidisciplinary, biology, Genetic transfer, Eukaryota, food and beverages, Agriculture, Plants, Legumes, Horticulture, Medicine, Hongos patógenos, Research Article, Genetic Markers, Evolutionary Processes, Genotype, Science, Argentina, Crops, Maní, Plant disease resistance, 03 medical and health sciences, Quantitative Trait, Heritable, Agronomía, reproducción y protección de plantas, Genetics, Plant breeding, Alleles, Crosses, Genetic, Plant Diseases, Crop Genetics, Evolutionary Biology, Basidiomycota, Hypogaea, Organisms, Biology and Life Sciences, biology.organism_classification, Carbon, Agronomy, Arachis Hypogaea, Arachis hypogaea, Plant Breeding, Peanut, 030104 developmental biology, CIENCIAS AGRÍCOLAS, purl.org/becyt/ford/4.1 [https], Genetics of Disease, Smut, Agricultura, Silvicultura y Pesca, purl.org/becyt/ford/4 [https], Enfermedades de las plantas, Crop Science, Microsatellite Repeats, 010606 plant biology & botany
Abstract

Smut disease caused by the fungal pathogen Thecaphora frezii Carranza & Lindquist is threatening the peanut production in Argentina. Fungicides commonly used in the peanut crop have shown little or no effect controlling the disease, making it a priority to obtain peanut varieties resistant to smut. In this study, recombinant inbred lines (RILs) were developed from three crosses between three susceptible peanut elite cultivars (Arachis hypogaea L. subsp. hypogaea) and two resistant landraces (Arachis hypogaea L. subsp. fastigiata Waldron). Parents and RILs were evaluated under high inoculum pressure (12000 teliospores g -1 of soil) over three years. Disease resistance parameters showed a broad range of variation with incidence mean values ranging from 1.0 to 35.0% and disease severity index ranging from 0.01 to 0.30. Average heritability (h 2 ) estimates of 0.61 to 0.73 indicated that resistance in the RILs was heritable, with several lines (4 to 7 from each cross) showing a high degree of resistance and stability over three years. Evidence of genetic transfer between genetically distinguishable germplasm (introgression in a broad sense) was further supported by simple-sequence repeats (SSRs) and Insertion/Deletion (InDel) marker genotyping. This is the first report of smut genetic resistance identified in peanut landraces and its introgression into elite peanut cultivars. This is an open access article, free of all copyright, and may be freely reproduced, distributed, transmitted, modified, built upon, or otherwise used by anyone for any lawful purpose. The work is made available under the Creative Commons CC0 public domain dedication. Fil: Bressano, Marina. Instituto Nacional de Tecnología Agropecuaria. Centro de Investigación en Ciencias Veterinarias y Agronómicas. Instituto de Fitopatología y Fisiología Vegetal; Argentina. Universidad Nacional de Córdoba; Argentina Fil: Massarini, Alicia. Usda Ars National Peanut Research Laboratory; Estados Unidos. Universidad de Buenos Aires. Facultad de Ingeniería. Postgrado-Maestría en Política y Gestión de la Ciencia y Tecnología; Argentina Fil: Arias, Renee S.. Usda Ars National Peanut Research Laboratory; Estados Unidos Fil: de Blas, Francisco Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina Fil: Oddino, Claudio Marcelo. Criadero El Carmen; Argentina Fil: Faustinelli, Paola Carmen. Usda Ars National Peanut Research Laboratory; Estados Unidos Fil: Soave, Sara Josefina. Criadero El Carmen; Argentina Fil: Soave, Juan H.. Criadero El Carmen; Argentina Fil: Pérez, Maria A.. Universidad Católica de Córdoba. Facultad de Ciencias Agropecuarias; Argentina Fil: Sobolev, Victor S.. Usda Ars National Peanut Research Laboratory; Estados Unidos Fil: Lamb, Marshall C.. Usda Ars National Peanut Research Laboratory; Estados Unidos Fil: Balzarini, Monica Graciela. Universidad Nacional de Córdoba; Argentina. Instituto Nacional de Tecnologia Agropecuaria. Centro de Investigaciones Agropecuarias. Unidad de Fitopatologia y Modelizacion Agricola. - Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - Cordoba. Unidad de Fitopatologia y Modelizacion Agricola.; Argentina Fil: Buteler, Mario I.. Criadero El Carmen; Argentina Fil: Seijo, José Guillermo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Botánica del Nordeste. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica del Nordeste; Argentina

Published
2019

3. Introgression of peanut smut resistance from landraces to elite peanut cultivars (Arachis hypogaea L.).

Author

Marina Bressano, Alicia N Massa, Renee S Arias, Francisco de Blas, Claudio Oddino, Paola C Faustinelli, Sara Soave, Juan H Soave, Maria A Pérez, Victor S Sobolev, Marshall C Lamb, Monica Balzarini, Mario I Buteler, and J Guillermo Seijo

Subjects
Medicine, Science
Abstract

Smut disease caused by the fungal pathogen Thecaphora frezii Carranza & Lindquist is threatening the peanut production in Argentina. Fungicides commonly used in the peanut crop have shown little or no effect controlling the disease, making it a priority to obtain peanut varieties resistant to smut. In this study, recombinant inbred lines (RILs) were developed from three crosses between three susceptible peanut elite cultivars (Arachis hypogaea L. subsp. hypogaea) and two resistant landraces (Arachis hypogaea L. subsp. fastigiata Waldron). Parents and RILs were evaluated under high inoculum pressure (12000 teliospores g-1 of soil) over three years. Disease resistance parameters showed a broad range of variation with incidence mean values ranging from 1.0 to 35.0% and disease severity index ranging from 0.01 to 0.30. Average heritability (h2) estimates of 0.61 to 0.73 indicated that resistance in the RILs was heritable, with several lines (4 to 7 from each cross) showing a high degree of resistance and stability over three years. Evidence of genetic transfer between genetically distinguishable germplasm (introgression in a broad sense) was further supported by simple-sequence repeats (SSRs) and Insertion/Deletion (InDel) marker genotyping. This is the first report of smut genetic resistance identified in peanut landraces and its introgression into elite peanut cultivars.

Published
2019
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