Tomato Breeding for Sustainable Crop Systems: High Levels of Zingiberene Providing Resistance to Multiple Arthropods

Autor(es)

Freitas de Oliveira, Joao Ronaldo ^[1] ; Vilela de Resende, Juliano Tadeu ^[2] ; de Lima Filho, Renato Barros ^[1] ; Roberto, Sergio Ruffo ^[2] ; da Silva, Paulo Roberto ^[3] ; Rech, Caroline ^[1] ; Nardi, Cristiane ^[1]

Afiliação do(s) autor(es)

^[1] Midwestern State Univ, Dept Agron, Simeao Camargo Varela de Sa 03, BR-85040080 Guarapuava, Parana - Brazil

^[2] Univ Estadual Londrina, Agr Res Ctr, Celso Garcia Cid Rd, Km 380, POB 10-011, BR-86057970 Londrina, Parana - Brazil

^[3] Midwestern State Univ, Genet & Plant Mol Biol Lab, Simeao Camargo Varela de Sa 03, BR-85040080 Guarapuava, Parana - Brazil

• Tipo de documento: Artigo Científico
• Fonte: HORTICULTURAE; v. 6, n. 2 JUN 2020.
• Citações Web of Science: 4

Resumo

In sustainable cropping systems, the management of herbivorous arthropods is a challenge for the high performance of the tomato crop. One way to reduce the damage caused by these pests is the use of resistant cultivars within a sustainable integrated management system. The host selection ofTetranychus urticae, Bemisia tabaci, and Tuta absoluta was evaluated, characterizing their preference among the tomato genotypes RVTZ2011-79-503-143, RVTZ2011-79-335-164, RVTZ2011-79-185-250 (high zingiberene content-HZC), and RVTZ2011-79-117-273 (low zingiberene content-LZC). Such genotypes were selected in the F2BC2 generation (the F2 generation of the 2th backcross towards Solanum lycopersicum after the inicial interspecific crossS. lycopersicum x S. habrochaites var. hirsutum), resulting from crossing Solanum habrochaitesvar.hirsutumPI-127826 (HZC and resistant to mites) and the commercial cv. Redencao (S. lycopersicum) (LZC and susceptible to mites). In choice and no-choice bioassays by T. urticae, and in choice bioassays by B. tabaci and T. absoluta, arthropods preferred to stay and oviposit in an LZC genotype. In contrast, genotypes with HZC showed repellency to pests and induced a non-preference for oviposition. The F2BC2 genotypes selected for HZC are considered sources of resistance genes to these pests for tomato breeding programs, and therefore have excellent potential for sustainable cropping systems. These results represent an advance in obtaining tomato genetic materials which can be used in sustainable production systems with less loss from pests. (AU)

• Processo FAPESP: 14/50871-0 - INCT 2014: Instituto Nacional de Ciência Tecnologia de Semioquímicos na Agricultura
• Beneficiário: José Roberto Postali Parra
• Modalidade de apoio: Auxílio à Pesquisa - Temático