Inheritance of cowpea resistance to Cowpea aphid-borne mosaic virus

Authors

  • Jeferson Araújo Silva Universidade Federal Rural de Pernambuco, Departamento de Agronomia, Programa de Pós- Graduação em Fitopatologia, Rua Dom Manuel de Medeiros, s/no, Dois Irmãos, CEP 52171-900 Recife, PE.
  • Antonio Félix da Costa Instituto Agronômico de Pernambuco, Avenida General San Martin, no 1.371, Bongi, CEP 50761-000 Recife, PE.
  • Ana Maria Benko-Iseppon Universidade Federal de Pernambuco, Centro de Biociências, Departamento de Genética, Avenida Professor Moraes Rego, s/no, Cidade Universitária, CEP 50670-420 Recife, PE.
  • Lílian Margarete Paes Guimarães Universidade Federal Rural de Pernambuco, Departamento de Agronomia, Programa de Pós- Graduação em Fitopatologia, Rua Dom Manuel de Medeiros, s/no, Dois Irmãos, CEP 52171-900 Recife, PE.
  • Diego Arruda Huggins de Sá Leitão Universidade Federal Rural de Pernambuco, Departamento de Agronomia, Programa de Pós- Graduação em Fitopatologia, Rua Dom Manuel de Medeiros, s/no, Dois Irmãos, CEP 52171-900 Recife, PE.
  • Alessandro Nicoli Universidade Federal dos Vales do Jequitinhonha e Mucuri, Instituto de Ciências Agrárias, Avenida Universitária, no 1.000, Universitários, CEP 38610-000 Unaí, MG.

DOI:

https://doi.org/10.1590/S1678-3921.pab2021.v56.26886

Keywords:

Vigna unguiculata, CABMV, genetic control

Abstract

The objective of this work was to evaluate the inheritance of resistance to Cowpea aphid-borne mosaic virus (CABMV) in cowpea (Vigna unguiculata). The study was performed between parental genotypes IT85F-2687 (resistant) and 'BR-14 Mulato' (susceptible), generating F1, F2, and F7 populations and backcrosses with both parental genotypes. CABMV was inoculated on plants from all generations, which were then evaluated through visual inspection and description of characteristic symptoms. A chi-square test was performed after the phenotypic classification of all plants. A segregation proportion of 1:3 (resistant:susceptible) in population F2 and of 1:1 in population F7 was accepted, showing a recessive monogenic inheritance.

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Published

2021-02-11

How to Cite

Silva, J. A., Costa, A. F. da, Benko-Iseppon, A. M., Guimarães, L. M. P., Leitão, D. A. H. de S., & Nicoli, A. (2021). Inheritance of cowpea resistance to <i>Cowpea aphid-borne mosaic virus</i>. Pesquisa Agropecuaria Brasileira, 56(Y), e02109. https://doi.org/10.1590/S1678-3921.pab2021.v56.26886

Issue

V.56, Jan./Dec., 2021 :Continuos publication

Section

PHYTOPATHOLOGY