Analysis of Tospovirus resistance factors in Solanum (section Lycopersicon) accessions

Authors

  • Renata Maria de Oliveira Universidade Federal de Goiás
  • Marcos Gomes da Cunha Universidade Federal de Goiás
  • Maria Esther Noronha Fonseca Empresa Brasileira de Pesquisa Agropecuária - Embrapa Hortaliças
  • Leonardo Silva Boiteux Empresa Brasileira de Pesquisa Agropecuária - Embrapa Hortaliças
  • Érico de Campos Dianese Universidade Federal de Goiás

Keywords:

Solanum lycopersicum L., Sw-5, resistance genes.

Abstract

The intensive and uninterrupted tomato cultivation has favored the establishment of several diseases that affect fruit yield and quality. Genetic resistance is the best method to control the disease called ‘vira-cabeça’ (caused by distinct species of the genus Tospovirus), being Sw-5 the first resistance gene effectively identified to control it in tomato plants. This study aimed at identifying new potential sources of tospovirus resistance in wild Solanum (Lycopersicon) species, as well as performing phylogenetic analysis related to the evolutionary characteristics of the Sw-5b gene, in accessions of wild tomato species. These analyses showed that the different tomato species belong to distinct evolutionary groups. Most of the accessions with wide-spectrum resistance to Tospovirus species correspond to allelic variants closely related to the original Sw-5b gene copy. However, resistant accessions of S. chilense and S. habrochaites are located in distinct phylogenetic groups, meaning that they may represent promising sources of new genes/alleles, providing wide resistance to tospovirus.

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Author Biographies

Renata Maria de Oliveira, Universidade Federal de Goiás

Doutoranda na Universidade Federal de Goiás, Programa de Pós-Graduação em Agronomia, subárea Fitossanidade.

Marcos Gomes da Cunha, Universidade Federal de Goiás

Professor Adjunto departamento de fitossanidade da Escola de Agronomia, Universidade Federal de Goiás

Maria Esther Noronha Fonseca, Empresa Brasileira de Pesquisa Agropecuária - Embrapa Hortaliças

Pesquisadora da Empresa Brasileira de Pesquisa Agropecuária - Embrapa Hortaliças

Leonardo Silva Boiteux, Empresa Brasileira de Pesquisa Agropecuária - Embrapa Hortaliças

Pesquisadora da Empresa Brasileira de Pesquisa Agropecuária - Embrapa Hortaliças

Érico de Campos Dianese, Universidade Federal de Goiás

Professor Adjunto departamento de fitossanidade da Escola de Agronomia, Universidade Federal de Goiás

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Published

2015-09-28

How to Cite

DE OLIVEIRA, R. M.; DA CUNHA, M. G.; FONSECA, M. E. N.; BOITEUX, L. S.; DIANESE, Érico de C. Analysis of Tospovirus resistance factors in Solanum (section Lycopersicon) accessions. Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics], Goiânia, v. 45, n. 3, p. 340–347, 2015. Disponível em: https://revistas.ufg.br/pat/article/view/34417. Acesso em: 21 nov. 2024.

Issue

v. 45, n. 3, Jul./Sep. 2015

Section

Plant Protection

License

Authors will not be paid for published articles and must waive their copyright in favor of the PAT journal. On the other hand, they are solely responsible for the content of those articles, even if the Editor holds the right to adjust them to the norms of the journal. Authors are allowed to publish their articles simultaneously in their institutional repositories, as soon as the original publication at the PAT journal is mentioned.