Dissertation
Selective breeding to develop a genetically improved strain of Pacific Whiteleg shrimp (Litopenaeus vannamei)
University of the Sunshine Coast, Queensland
Doctor of Philosophy, University of the Sunshine Coast
2019
DOI:
https://doi.org/10.25907/00542
Abstract
The Pacific whiteleg shrimp, Litopenaeus vannamei, is an important global aquaculture species, accounting in 2012, for about 15% of the total world-wide value of internationally traded fishery products. Although Vietnam suffered from the consequences of a strong "La Niña", the national shrimp production still reached 683,000 tonnes and the amount of L. vannamei production increased by 8.5% to 427,000 tonnes in 2017. Approximately three million people (10% of the population) in Vietnam derive their main income from shrimp farming (3 million labourers). The development of genetically improved L. vannamei lines would bring about socio-economic benefits to the aquaculture sector by improving production and profitability. There are, however, many challenges in rolling out genetic improvement programs for L. vannamei, including a lack of management tools (such as DNA tagging) to manage inbreeding and facilitate cost-effective selection, as well as a lack of scientific knowledge of the quantitative genetic basis of new traits (i.e., reproduction, body colour, survival and deformity). Furthermore, the knowledge of genetic diversity and genetic associations among shrimp populations is currently not well understood. There is no published information regarding genetic expressions of body colour under different culture environments, and this species genetic association with growth traits are unknown. There is also a paucity of scientific knowledge regarding markers and trait associations for characters of commercial interest and the best options to integrate genomic information into conventional selective breeding programs.
Details
- Title
- Selective breeding to develop a genetically improved strain of Pacific Whiteleg shrimp (Litopenaeus vannamei)
- Authors
- Truong Giang Cao
- Contributors
- Wayne R Knibb (Supervisor)
- Awarding institution
- University of the Sunshine Coast
- Degree awarded
- Doctor of Philosophy
- Publisher
- University of the Sunshine Coast, Queensland
- DOI
- 10.25907/00542
- Organisation Unit
- School of Science and Engineering - Legacy; University of the Sunshine Coast, Queensland; GeneCology Research Centre - Legacy
- Language
- English
- Record Identifier
- 99450996002621
- Output Type
- Dissertation
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