Zingiberene-mediated resistance to the South American tomato pinworm derived from Lycopersicon hirsutum var. hirsutum

The Lycopersicon hirsutum var. hirsutum accession PI 127826 is recognized as a good source of resistance to arthropod pests due to the action of the allelochemical zimgiberene, a sesquiterpene present in its glandular trichomes. Five genotypes were selected from the F^sub 2^ generation of the inters...

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Bibliographic Details
Published in:Euphytica 2003-01, Vol.134 (3), p.347-351
Main Authors: DE AZEVEDO, Sebastiao Marcio, VENTURA FARIA, Marcos, MALUF, Wilson Roberto, BARNECHE DE OLIVEIRA, Claudia, DE FREITAS, Joelson André
Format: Article
Language:English
Subjects:
Agronomy. Soil science and plant productions
Biological and medical sciences
Fundamental and applied biological sciences. Psychology
Genetics and breeding of economic plants
Genotype & phenotype
Lycopersicon hirsutum
Pest animals
Pest resistance
Plant diseases
Plant pathology
Plant reproduction
Plant resistance
Tomatoes
Varietal selection. Specialized plant breeding, plant breeding aims
Worms
Zingiberene
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Summary:The Lycopersicon hirsutum var. hirsutum accession PI 127826 is recognized as a good source of resistance to arthropod pests due to the action of the allelochemical zimgiberene, a sesquiterpene present in its glandular trichomes. Five genotypes were selected from the F^sub 2^ generation of the interspecific cross Lycopersicon esculentum 'TOM-556' × Lycopersicon hirsutum var. hirsutum 'PI 127826', based on their low levels (BPX-368-clone#56) or high levels(BPX-368-clone#92, BPX-368-clone#105,BPX-368-clone#179, BPX-368-clone#250) of zingiberene. The five F^sub 2^ genotypes were tested for resistance to the South American tomato pinworm Tuta absolutaalong with accession L. esculentum 'TOM-556' (pinworm susceptible), and the accessions L. hirsutum var. hirsutum 'PI 127826' and L. pennellii 'LA716' (resistant). The F^sub 2^ clones selected for high foliar zingiberene levels showed lower scores for leaflet lesion type(LLT), percent leaflets attacked (PLA) and overall plant damage (OPD) than the low zingiberene genotypes. The results indicated that zingiberene mediates resistance to the South American pinworm, based on feeding and on ovipositing deterrence, in populations derived from the interspecific cross between Lycopersicon. esculentum and Lycopersicon hirsutum var. hirsutum. Indirect selection for high foliar zingiberene content is suggested as an efficient technique for breeding tomatoes for resistance to the South American tomato pinworm.[PUBLICATION ABSTRACT]
ISSN:0014-2336
1573-5060
DOI:10.1023/B:EUPH.0000005007.14924.d2