Brazilian melon landraces resistant to Podosphaera xanthii are unique germplasm resources
[EN] Podosphaera xanthii is the most important causal agent of powdery mildew in melon, a crop ranked within the most economically important species worldwide. The best strategy to face this fungus disease, which causes important production losses, is the development of genetically resistant cultiva...
| Authors: | ; ; ; ; ; ; |
|---|---|
| Format: | Article |
| Publication date: | 2017 |
| Country: | España |
| Institution: | Universitat Politècnica de València (UPV) |
| Repository: | RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia |
| Language: | English |
| OAI Identifier: | oai:riunet.upv.es:10251/153354 |
| Online Access: | https://riunet.upv.es/handle/10251/153354 |
| Access Level: | Open access |
| Keyword: | Cucumis melo Diversity Genetic resistance Powdery mildew Screening GENETICA |
| _version_ | 1878739226740129792 |
|---|---|
| author | Nunes, E. W. L. P. |
| author2 | Ricarte, A. O. Gómez-Guillamon, M. L. Nunes, G. H. S. Esteras Gómez, Cristina|||0000-0002-8789-4363 Martínez-Pérez, Eva María Picó Sirvent, María Belén|||0000-0001-7761-990X |
| author2_role | author author author author author author |
| author_browse | Esteras Gómez, Cristina|||0000-0002-8789-4363 Gómez-Guillamon, M. L. Martínez-Pérez, Eva María Nunes, E. W. L. P. Nunes, G. H. S. Picó Sirvent, María Belén|||0000-0001-7761-990X Ricarte, A. O. |
| author_facet | Nunes, E. W. L. P. Ricarte, A. O. Gómez-Guillamon, M. L. Nunes, G. H. S. Esteras Gómez, Cristina|||0000-0002-8789-4363 Martínez-Pérez, Eva María Picó Sirvent, María Belén|||0000-0001-7761-990X |
| author_role | author |
| collection | RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia |
| description | [EN] Podosphaera xanthii is the most important causal agent of powdery mildew in melon, a crop ranked within the most economically important species worldwide. The best strategy to face this fungus disease, which causes important production losses, is the development of genetically resistant cultivars. Genetic breeding programmes require sources of resistance, and a few ones have been reported in melon, mostly in Momordica and Acidulus horticultural groups. However, the existence of many races that reduces the durability of the resistance makes necessary to find new resistant genotypes with different genetic backgrounds. In this work, Brazilian germplasm, together with a set of Indian landraces, and the COMAV¿s (Institute for the Conservation and Breeding of Agricultural Biodiversity) melon core collection, representing the whole variability of the species, were assessed for resistance against some common races in Spain and Brazil and genotyped with a 123-SNP (single nucleotide polymorphisms) genotyping platform to study the molecular relationships of the resistant accessions. In the first experiment, carried out in Valencia (Spain) in 2013, seventy-nine melon accessions were evaluated using artificial inoculation. Five accessions selected as resistant were also evaluated against races 1, 3, and 5 in Mossoró (Brazil, 2015) and against race 3.5 in Valencia (2016) under greenhouse conditions, and under four field conditions in Brazil. The accessions, AL-1, BA-3, CE-3, and RN-2, within the Brazilian collection, presented resistance against all the races of P. xanthii assayed in all conditions tested. AL-1, CE-3 and RN-2 were molecularly more similar to wild agrestis and Acidulus melons from Asia and Africa, while BA-3 grouped with Momordica types. Molecular analysis also confirmed that these new Brazilian sources of resistance differ from those previously reported, constituting interesting materials to encourage genetic breeding programmes, especially in Brazil and Spain. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | ES_bd7d7a42e940dd1c8a52b77a2de5380d |
| institution | Universitat Politècnica de València (UPV) |
| instname_str | Universitat Politècnica de València (UPV) |
| language | eng |
| network_acronym_str | ES |
| network_name_str | España |
| oai_identifier_str | oai:riunet.upv.es:10251/153354 |
| publishDate | 2017 |
| publishDateSort | 2017 |
| publisher | Blackwell Publishing |
| publisherStr | Blackwell Publishing |
| reponame_str | RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia |
| spelling | Brazilian melon landraces resistant to Podosphaera xanthii are unique germplasm resources Nunes, E. W. L. P. Ricarte, A. O. Gómez-Guillamon, M. L. Nunes, G. H. S. Esteras Gómez, Cristina|||0000-0002-8789-4363 Martínez-Pérez, Eva María Picó Sirvent, María Belén|||0000-0001-7761-990X Cucumis melo Diversity Genetic resistance Powdery mildew Screening GENETICA [EN] Podosphaera xanthii is the most important causal agent of powdery mildew in melon, a crop ranked within the most economically important species worldwide. The best strategy to face this fungus disease, which causes important production losses, is the development of genetically resistant cultivars. Genetic breeding programmes require sources of resistance, and a few ones have been reported in melon, mostly in Momordica and Acidulus horticultural groups. However, the existence of many races that reduces the durability of the resistance makes necessary to find new resistant genotypes with different genetic backgrounds. In this work, Brazilian germplasm, together with a set of Indian landraces, and the COMAV¿s (Institute for the Conservation and Breeding of Agricultural Biodiversity) melon core collection, representing the whole variability of the species, were assessed for resistance against some common races in Spain and Brazil and genotyped with a 123-SNP (single nucleotide polymorphisms) genotyping platform to study the molecular relationships of the resistant accessions. In the first experiment, carried out in Valencia (Spain) in 2013, seventy-nine melon accessions were evaluated using artificial inoculation. Five accessions selected as resistant were also evaluated against races 1, 3, and 5 in Mossoró (Brazil, 2015) and against race 3.5 in Valencia (2016) under greenhouse conditions, and under four field conditions in Brazil. The accessions, AL-1, BA-3, CE-3, and RN-2, within the Brazilian collection, presented resistance against all the races of P. xanthii assayed in all conditions tested. AL-1, CE-3 and RN-2 were molecularly more similar to wild agrestis and Acidulus melons from Asia and Africa, while BA-3 grouped with Momordica types. Molecular analysis also confirmed that these new Brazilian sources of resistance differ from those previously reported, constituting interesting materials to encourage genetic breeding programmes, especially in Brazil and Spain. This work was supported by the Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq ( Processes: 485739/2013-5; 312315/2013-9) and CAPES-DPGU (294/2013) and by the projects funded by the Ministerio de Economia y Competitividad AGL2014-53398-C2-1-R and AGL2014-53398-C2-2-R (jointly funded by FEDER). We also thank Sakata Seed Sudamerica Ltda for the inoculum source for the different P. xanthii races employed. Blackwell Publishing https://riunet.upv.es/handle/10251/153354 |
| spellingShingle | Brazilian melon landraces resistant to Podosphaera xanthii are unique germplasm resources Nunes, E. W. L. P. Cucumis melo Diversity Genetic resistance Powdery mildew Screening GENETICA |
| title | Brazilian melon landraces resistant to Podosphaera xanthii are unique germplasm resources |
| title_full | Brazilian melon landraces resistant to Podosphaera xanthii are unique germplasm resources |
| title_fullStr | Brazilian melon landraces resistant to Podosphaera xanthii are unique germplasm resources |
| title_full_unstemmed | Brazilian melon landraces resistant to Podosphaera xanthii are unique germplasm resources |
| title_short | Brazilian melon landraces resistant to Podosphaera xanthii are unique germplasm resources |
| title_sort | Brazilian melon landraces resistant to Podosphaera xanthii are unique germplasm resources |
| topic | Cucumis melo Diversity Genetic resistance Powdery mildew Screening GENETICA |
| topic_facet | Cucumis melo Diversity Genetic resistance Powdery mildew Screening GENETICA |
| url | https://riunet.upv.es/handle/10251/153354 |