Genetic variability among cashew hybrids and prediction of superior combinations based on agronomic performance

Authors

  • Maraisa Crestani Hawerroth Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina, Estação Experimental de Caçador, Rua Abílio Franco, no 1.500, Bom Sucesso, Caixa Postal 591, CEP 89501-032 Caçador, SC.
  • Patricia do Nascimento Bordallo Embrapa Agroindústria Tropical, Rua Dra. Sara Mesquita, no 2.270, Planalto do Pici, Caixa Postal 3.761, CEP 60511-110 Fortaleza, CE.
  • Luis Cláudio Pessoa Oliveira Universidade Federal de Lavras, Departamento de Agricultura, Campus Universitário, Caixa Postal 3.037, CEP 37200-00 Lavras, MG.
  • Egnesio Holanda Vale Embrapa Agroindústria Tropical, Rua Dra. Sara Mesquita, no 2.270, Planalto do Pici, Caixa Postal 3.761, CEP 60511-110 Fortaleza, CE.
  • Francisco das Chagas Vidal Neto Embrapa Agroindústria Tropical, Rua Dra. Sara Mesquita, no 2.270, Planalto do Pici, Caixa Postal 3.761, CEP 60511-110 Fortaleza, CE.
  • Dheyne Silva Melo Embrapa Agroindústria Tropical, Rua Dra. Sara Mesquita, no 2.270, Planalto do Pici, Caixa Postal 3.761, CEP 60511-110 Fortaleza, CE.

DOI:

https://doi.org/10.1590/S1678-3921.pab2019.v54.26532

Keywords:

Anacardium, cashew breeding program, ISSR markers, nut health, RAPD markers

Abstract

The objective of this work was to evaluate the use of RAPD and ISSR molecular markers to determine the genetic variability among cashew (Anacardium spp.) genotypes, and to indicate possible promising crosses based on cashew genetic variability and phenotypic performance. Ten hybrids – derived from the crosses CCP 76 x BGC 589, CCP 76 x BRS 226, CCP 76 x HAC 276-1, CCP 76 x Embrapa 51, CCP 76 x BRS 253, CCP 76 x HAC222-4, and BRS226 x Embrapa 51 – and their parents were assessed at the molecular level. The hybrids were evaluated for nut yield, mean nut weight, bored nuts, and powdery mildew on nuts (scale 0–4). The RAPD and ISSR markers were efficient in the determinaton of the genetic variability among cashew genotypes, allowing of the grouping of 21 clusters. Associated with the phenotypic characterization of cashew nut for yield, weight, and health, the used markers can efficiently identify possible combinations with higher genetic variability and higher probability of developing transgressive genotypes in segregating populations.

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Published

2019-08-21

How to Cite

Hawerroth, M. C., Bordallo, P. do N., Oliveira, L. C. P., Vale, E. H., Vidal Neto, F. das C., & Melo, D. S. (2019). Genetic variability among cashew hybrids and prediction of superior combinations based on agronomic performance. Pesquisa Agropecuaria Brasileira, 54(X), e00725. https://doi.org/10.1590/S1678-3921.pab2019.v54.26532

Issue

V.54, Jan./Dec., 2019 :Continuos publication

Section

GENETICS