Selection of tomato accessions resistant to Verticilium wilt

Authors

DOI:

https://doi.org/10.5216/pat.v46i4.43106

Keywords:

Verticillium dahliae, Solanum lycopersicum, genetic markers, disease resistance.

Abstract

Vascular wilting in tomato plants is an important disease caused by soil-inhabiting pathogens, especially Verticillium dahliae, which results in significant production losses. Control measures against this disease are difficult to implement due to intrinsic pathogen characteristics, such as high adaptability to the subterranean environment, in association with the host, and development of resistance structures that remain viable in the soil for long periods. The introgression of genes that express resistance is the main control measure and requires a continuous characterization program of resistant accessions. This study aimed at identifying tomato (Solanum lycopersicum) accessions resistant to V. dahlia, by using the phenotypic and genotypic methods. The reaction of 33 tomato accessions to different V. dahliae isolates was reinforced by molecular analysis, through markers linked to Ve resistance genes. The combination of bioassays and specific molecular markers showed a high correlation (94.3 %), with the selection of 25 accessions resistant to V. dahliae.

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Author Biography

  • Renato Carrer Filho, Federal University of Goiás

    Engenheiro Agronomo, UFV

    Master of Science Fitopatologia, UFV

    Especialista Gestão do Agronegócio, UFG

    Doctor of Science Fitossanidade, UFG

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Published

2017-01-06

Issue

v. 46, n. 4, Oct./Dec. 2016

Section

Research Article

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.

How to Cite

CARRER FILHO, R. et al. Selection of tomato accessions resistant to Verticilium wilt. Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics], v. 46, n. 4, p. 429–433, 6 Jan.2017.