Estimates of strain additive and non-additive genetic effects for growth traits in a diallel cross of three strains of giant freshwater prawn (Macrobrachium rosenbergii) in Vietnam

Ngyen, Minh Thanh, Nguyen, Nguyen Hong, Ponzoni, Raul W., Vu, Nguyen Than, Barnes, Andrew C. and Mather, Peter B. (2010) Estimates of strain additive and non-additive genetic effects for growth traits in a diallel cross of three strains of giant freshwater prawn (Macrobrachium rosenbergii) in Vietnam. Aquaculture, 299 1-4: 30-36. doi:10.1016/j.aquaculture.2009.12.011


Author Ngyen, Minh Thanh
Nguyen, Nguyen Hong
Ponzoni, Raul W.
Vu, Nguyen Than
Barnes, Andrew C.
Mather, Peter B.
Title Estimates of strain additive and non-additive genetic effects for growth traits in a diallel cross of three strains of giant freshwater prawn (Macrobrachium rosenbergii) in Vietnam
Formatted title
Estimates of strain additive and non-additive genetic effects for growth traits in a diallel cross of three strains of giant freshwater prawn (Macrobrachium rosenbergii) in Vietnam
Journal name Aquaculture   Check publisher's open access policy
ISSN 0044-8486
1873-5622
Publication date 2010-02-01
Year available 2010
Sub-type Article (original research)
DOI 10.1016/j.aquaculture.2009.12.011
Open Access Status DOI
Volume 299
Issue 1-4
Start page 30
End page 36
Total pages 7
Editor B. A. Costa-Pierce
E. M. Donaldson
G. Hulata
Place of publication Amsterdam, The Netherlands
Publisher Elsevier BV
Language eng
Subject C1
830101 Aquaculture Crustaceans (excl. Rock Lobster and Prawns)
070405 Fish Physiology and Genetics
Abstract Additive genetic, heterotic and strain reciprocal effects were estimated using a diallel cross of two local wild strains of the giant freshwater prawn (Macrobrachium rosenbergii) in Vietnam (Dong Nai and Mekong) and a third domesticated Hawaiian strain, newly introduced to Vietnam. While some minor heterotic outcomes were detected in specific crosses, strain additive genetic and reciprocal effects were more significant sources of variation for all growth traits measured. Strain additive genetic effects were highest for the Hawaiian strain (+10.2%) and lowest for the Mekong strain (-11.6%) for harvest body weight. A similar pattern of strain additive genetic effects was observed for carapace and standard length. Average heterotic outcomes for all growth traits were small and not significantly different from zero (P>0.05), and ranged from +0.7 for carapace length to +1.5% for body weight. The reciprocal effect had a positive effect on growth rate, because crosses between the Dong Nai (D) or Mekong (M) strains as dam and the Hawaiian (H) strain as sire grew faster than did their reciprocal crosses (HD and HM). The relative high correlation between strain additive performance and total performance for all traits (r = 0.71 to 0.77) suggests potential for exploiting strain additive variation to improve M. rosenbergii culture stock via direct selection among strains. A breeding strategy for genetic improvement of giant freshwater prawn in Vietnam is discussed. (C) 2009 Elsevier B.V. All rights reserved.
Formatted abstract
Additive genetic, heterotic and strain reciprocal effects were estimated using a diallel cross of two local wild strains of the giant freshwater prawn (Macrobrachium rosenbergii) in Vietnam (Dong Nai and Mekong) and a third domesticated Hawaiian strain, newly introduced to Vietnam. While some minor heterotic outcomes were detected in specific crosses, strain additive genetic and reciprocal effects were more significant sources of variation for all growth traits measured. Strain additive genetic effects were highest for the Hawaiian strain (+ 10.2%) and lowest for the Mekong strain (− 11.6%) for harvest body weight. A similar pattern of strain additive genetic effects was observed for carapace and standard length. Average heterotic outcomes for all growth traits were small and not significantly different from zero (P > 0.05), and ranged from + 0.7 for carapace length to + 1.5% for body weight. The reciprocal effect had a positive effect on growth rate, because crosses between the Dong Nai (D) or Mekong (M) strains as dam and the Hawaiian (H) strain as sire grew faster than did their reciprocal crosses (HD and HM). The relative high correlation between strain additive performance and total performance for all traits (r = 0.71 to 0.77) suggests potential for exploiting strain additive variation to improve M. rosenbergii culture stock via direct selection among strains. A breeding strategy for genetic improvement of giant freshwater prawn in Vietnam is discussed.
© 2009 Elsevier B.V.

Keyword Macrobrachium rosenbergii
Diallel cross
Additive genetic effect
Heterosis
Reciprocal effect
Oreochromis-niloticus
De-man
Hybridization
Improvement
Heterosis
Populations
Performance
Survival
Thailand
Selection
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2011 Collection
School of Biological Sciences Publications
 
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Created: Sun, 14 Mar 2010, 10:07:48 EST