Effects of genotype × environment interaction on the estimation of genetic parameters and gains in Nile tilapia

Filipe Chagas Teodózio de Araújo; Carlos Antonio Lopes de Oliveira; Eric Costa Campos; Grazyella Massako Yoshida; Vanessa Lewandowski; Humberto Todesco; Nguyen Hong Nguyen; Ricardo Pereira Ribeiro

doi:10.1007/s13353-020-00576-2

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Effects of genotype × environment interaction on the estimation of genetic parameters and gains in Nile tilapia

Journal article

Peer reviewed

Effects of genotype × environment interaction on the estimation of genetic parameters and gains in Nile tilapia

Filipe Chagas Teodózio de Araújo, Carlos Antonio Lopes de Oliveira, Eric Costa Campos, Grazyella Massako Yoshida, Vanessa Lewandowski, Humberto Todesco, Nguyen Hong Nguyen and Ricardo Pereira Ribeiro

Journal of Applied Genetics, Vol.61(4), pp.575-580

2020

DOI: https://doi.org/10.1007/s13353-020-00576-2

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Abstract

Oreochromis niloticus

Morphometric trait

Genetic correlation

Heritability

Response to selection

Nile tilapia (Oreochromis niloticus) is the major fish species produced in Brazil, a country with a vast territory and great climate diversity. This study assessed the effects of the genotype × environment interaction on heritability estimates and selection responses in Nile tilapia (Tilamax strain) cultivated in earthen ponds and net cages. The weight at harvest, trunk length, and head percentage of 4400 individuals were determined. Trait heritabilities were higher in pond fish (0.27–0.52) than in caged fish (0.09–0.33). Genetic correlations between farming systems were lower than 0.5 for the three traits. The rank position of the top 10 families differed according to the environment, as did the response to direct and indirect selection. The results revealed significant genotype × environment effects on the heritability of Nile tilapia farmed under different systems.

Details

Title: Effects of genotype × environment interaction on the estimation of genetic parameters and gains in Nile tilapia
Authors: Filipe Chagas Teodózio de Araújo (Author) - Universidade Estadual de Maringá
Carlos Antonio Lopes de Oliveira (Author) - Universidade Estadual de Maringá
Eric Costa Campos (Corresponding Author) - Universidade Estadual de Maringá
Grazyella Massako Yoshida (Author) - University of Chile
Vanessa Lewandowski (Author) - Universidade Federal da Grande Dourados
Humberto Todesco (Author) - Universidade Estadual de Maringá
Nguyen Hong Nguyen (Author) - University of the Sunshine Coast, Queensland, School of Science and Engineering - Legacy
Ricardo Pereira Ribeiro (Author) - Universidade Estadual de Maringá
Publication details: Journal of Applied Genetics, Vol.61(4), pp.575-580
Publisher: Springer
DOI: 10.1007/s13353-020-00576-2
ISSN: 2190-3883
Organisation Unit: Centre for Bioinnovation; University of the Sunshine Coast, Queensland; School of Science and Engineering - Legacy; School of Science, Technology and Engineering
Language: English
Record Identifier: 99482301902621
Output Type: Journal article

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Collaboration types: Domestic collaboration; International collaboration
Web Of Science research areas: Biotechnology & Applied Microbiology; Genetics & Heredity

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