Journal article
Moderate heritability of hepatopancreatic parvovirus titre suggests a new option for selection against viral diseases in banana shrimp (Fenneropenaeus merguiensis) and other aquaculture species
Genetics Selection Evolution, Vol.48, 64
2016
Abstract
Background: In shrimp farming, major production losses are caused by viruses. Hepatopancreatic parvovirus (HPV) is one of the viral pathogens that infect banana shrimp (Fenneropenaeus merguiensis). HPV is thought to slow down growth and cause mortality in the juvenile stages of banana shrimp. Genetic improvement through selection of shrimp resistant to viral diseases is one approach to address this issue. This is the first detailed report on an aquaculture species that investigates whether viral titre varies among families and is heritable, and thus whether viral titre per se is a possible candidate trait for selection to produce resistant stock. Results: HPV titre was measured by quantitative polymerase chain reaction of DNA extracted from 1137 offspring (from 48 full-sib families). Estimated heritability of HPV titre, based on the linear animal mixed model, was moderate (h2 = 0.41). Genetic correlations of HPV with body traits (weight, length and width of body, head and tail) ranged from -0.13 to -0.38. HPV titre was negatively correlated with raw and cooked body colour (-0.33 and -0.43, respectively). Conclusions: This is the first study based on a large dataset that provides evidence that viral titre may have a genetic component in penaeid shrimp or even in any aquaculture species. The moderate heritability estimated for this trait suggests that resistance to HPV may be achieved by selecting for low HPV titre. With moderate and negative correlations, selection for resistance to HPV should gradually improve body traits and colour of banana shrimp.
Details
- Title
- Moderate heritability of hepatopancreatic parvovirus titre suggests a new option for selection against viral diseases in banana shrimp (Fenneropenaeus merguiensis) and other aquaculture species
- Authors
- Chontida Phuthaworn (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and EngineeringNguyen Hong Nguyen (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and EngineeringJane Quinn (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and EngineeringWayne R Knibb (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and Engineering
- Publication details
- Genetics Selection Evolution, Vol.48, 64; 10
- Publisher
- BioMed Central Ltd.
- Date published
- 2016
- DOI
- 10.1186/s12711-016-0243-8
- ISSN
- 0999-193X
- Copyright note
- Copyright © 2016 The Author(s). This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/ publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated
- Organisation Unit
- School of Science and Engineering - Legacy; University of the Sunshine Coast, Queensland; GeneCology Research Centre - Legacy; School of Science, Technology and Engineering; Centre for Bioinnovation
- Language
- English
- Record Identifier
- 99451148002621
- Output Type
- Journal article
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