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Diallel analysis of the morphoagronomic, phytochemical, and antioxidant traits in Capsicum baccatum var. pendulum

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Abstract

Capsicum baccatum is one of the main chili peppers cultivated in South America. However, most studies on genetics and breeding have focused on C. annuum, and not C. baccatum. To gain more insights into C. baccatum genetics and breeding, this work estimated the combinatorial abilities of dedo-de-moça-type chili peppers (C. baccatum var. pendulum) in relation to morphoagronomic and biochemical traits, determined the genetic action involved in the expression of these traits, and identified the superior hybrid combinations. Crosses among the five genotypes in a full diallel mating design resulted in 20 F1 hybrids. Morphoagronomic, phytochemical, and antioxidant data were obtained, and Griffing’s diallel model was used to estimate the general and specific combining ability (GCA and SCA, respectively) as well as the reciprocal effect (RE). High diversity was observed for all traits among the parents and hybrids. Significant effects of GCA, SCA, and RE were also detected for the majority of traits, indicating that additive, non-additive, and cytoplasmic effects are involved in the genetic control of these traits. The non-additive effects were predominant for most traits, and the ‘BRS Mari’ × ‘Mexicali’ and ‘BRS Mari’ × ‘Hortivale’ hybrids were the most promising in terms of their yield per plant and their biochemical traits.

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Acknowledgements

The authors acknowledge the financial support given by CAPES (Coordenação de Aperfeiçoamento de Pessoal de Nível Superior), FAPERJ (Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro), and CNPq (Conselho Nacional de Desenvolvimento Científico e Tecnológico); the grant awarded to the first author by the Doctoral Program-Sandwich Abroad (PDSE) - CAPES, 88881.133378 / 2016-01. This study was financed in part by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior – Brasil (CAPES) – Finance Code 001.

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Contributions

Conceptualization: Leandro S. A. Gonçalves. Data curation: Gisely Paula Gomes, Leandro S. A. Gonçalves. Formal analysis: Douglas Mariani Zeffa, Leandro S. A. Gonçalves. Investigation: Gisely Paula Gomes, Leonel Vinicius Constantino, Viviane Yumi Baba, Frederico Pomar. Methodology: Gisely Paula Gomes, Leonel Vinicius Constantino, Federico Pomar. Resources: Cristina Silvar, Rosana Rodrigues, Leandro S. A. Gonçalves. Supervision: Cristina Silvar, Leandro S. A. Gonçalves. Validation: Gisely Paula Gomes, Leonel Vinicius Constantino, Viviane Yumi Baba. Writing – original draft: Gisely Paula Gomes. Writing – review & editing: Cristina Silvar, Federico Pomar, Rosana Rodrigues, Leandro S. A. Gonçalves.

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Correspondence to Leandro S. A. Gonçalves.

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Conflict of interest The authors have no conflict of interest to declare.

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Communicated by Tae-Ho Han, Ph.D.

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Gomes, G.P., Zeffa, D.M., Constantino, L.V. et al. Diallel analysis of the morphoagronomic, phytochemical, and antioxidant traits in Capsicum baccatum var. pendulum. Hortic. Environ. Biotechnol. 62, 435–446 (2021). https://doi.org/10.1007/s13580-020-00299-7

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  • DOI: https://doi.org/10.1007/s13580-020-00299-7

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