Herança da resistência antixenótica de tomate à traça-do-tomateiro

Adilson de Castro Antônio; Derly José Henriques da Silva; Marcelo Coutinho Picanço; Nerilson Terra Santos; Maria Elisa de Sena Fernandes

doi:10.1590/S1678-3921.pab2011.v46.8581

Tomato plant inheritance of antixenotic resistance to tomato leafminer

Authors

Adilson de Castro Antônio Federal University of Viçosa
Derly José Henriques da Silva
Marcelo Coutinho Picanço
Nerilson Terra Santos
Maria Elisa de Sena Fernandes Federal University of Viçosa

DOI:

https://doi.org/10.1590/S1678-3921.pab2011.v46.8581

Keywords:

Lycopersicon esculentum, Tuta absoluta, genetic resources

Abstract

The objective of this work was to determine the inheritance of resistance by antixenosis in tomato plants (Lycopersicon esculentum) to tomato leafminer [Tuta absoluta (Lepidoptera: Gelechiidae)]. Evaluations were performed for tomato plants of the generations P₁, P₂, F₁, F₂, RC₁ and RC₂. The measured characteristic in the parents, BGH-1497 (P₂ male) and 'Santa Clara' (P₁ female), and in the F₁, F₂, RC₁ and RC₂ generations was the number of eggs per plant. This number was converted to the oviposition nonpreference index. The inheritance of antixenosis resistance of genotype BGH-1497 is ruled by a gene of greater effect and polygenes in epistatic interactions, with a phenotypic proportion of 13:3 between susceptible and resistant genotypes, respectively.

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Published

2011-03-23

Issue

v.46, n.1, jan. 2011

Section

GENETICS

How to Cite

Antônio, A. de C., da Silva, D. J. H., Picanço, M. C., Santos, N. T., & Fernandes, M. E. de S. (2011). Tomato plant inheritance of antixenotic resistance to tomato leafminer. Pesquisa Agropecuaria Brasileira, 46(1), 74-80. https://doi.org/10.1590/S1678-3921.pab2011.v46.8581

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