Estimates for the heritability of size in juvenile Penaeus monodon prawns from half-sib matings

Benzie, John A. H.; Kenway, Matthew; Trott, Lindsay

doi:10.1016/s0044-8486(96)01528-1

Cited by 60 publications

(34 citation statements)

References 5 publications

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“…Furthermore, our h 2 estimates for growth were similar to those obtained for L. vannamei by Fjalestad et al (1999) and by Benzie et al (1997) for P. monodon, but much lower than that reported by Argue et al (2002) for L. vannamei andKenway et al (2006) for P. monodon. Gitterle et al (2005b) found that in L. vannamei the estimated h 2 for body weight at harvest varied substantially (from 0.01 to 0.54) between the different batches they studied, with overall h 2 estimates for body weight of 0.17 and 0.24 in the two genetic lines they used.…”

Section: Discussionsupporting

confidence: 89%

Artificial family selection based on growth rate in cultivated lines of Litopenaeus vannamei (Decapoda, Penaeidae) from Venezuela

Donato

Ramírez²,

Howell³

et al. 2008

Genet. Mol. Biol.

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We investigated the effects of family selection on the growth rates of four genetic lines of Litopenaeus vannamei, the Pacific white shrimp, from Venezuela. The mean family weight at selection was 16.79 g and the mean growth rate was 0.169 g d -1 at a mean age of 138 days. The mean growth rates per generation were 0.141 g d -1 for the parental generation (P 0 ), 0.173 g d -1 for the F 1 and 0.191 g d -1 for the F 2 . Survival varied from 83.3% to 94.4%. There were statistically significant differences between lines, with lines B and C, growing at higher temperatures and lower salinities, showing the fastest growth. Regression analysis between growth rate and age for each genetic line showed high r 2 values, but smaller than those shown between growth rate and generation. The mean heritability (h 2 ) estimated for growth rate was 0.25 ± 0.04, with line per generation values ranging from 0.18 to 0.38. The mean heritability for growth rate per line showed some variation but there was no correlation between heritability and growth rate. Females showed a greater gain in growth rate per generation than males due to their faster growth when they were older. This study shows the high potential of these L. vannamei populations for the future of shrimp culture in the Americas.

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Section: Discussionsupporting

confidence: 89%

Artificial family selection based on growth rate in cultivated lines of Litopenaeus vannamei (Decapoda, Penaeidae) from Venezuela

Donato

Ramírez²,

Howell³

et al. 2008

Genet. Mol. Biol.

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“…The heritability of growth (total length and weight) in P. monodon has been studied using 18 half-sib groups (Benzie et al, 1997). Heritability estimates for total length and weight of postlarvae measured at 6 and 10 weeks after hatching based on sire components were approximately 0.10 at each age.…”

Section: Introductionmentioning

confidence: 99%

Mitochondrial DNA Diversity in Three Populations of the Giant Tiger Shrimp Penaeus monodon

et al. 1999

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: Mitochondrial DNA restriction fragment length polymorphism (mtDNA-RFLP) was utilized for determination of genetic variation and population structure in Penaeus monodon collected from Satun (the Andaman Sea) and Surat and Trat (the Gulf of Thailand). Twenty-eight composite haplotypes were generated from 52 restriction profiles of P. monodon mtDNA digested with 11 restriction endonucleases. The size of the entire P. monodon mitochondrial genome was estimated to be 15.913 +/- 0.177 kb. The average haplotype diversity in P. monodon was 0.864, whereas the mean nucleotide diversity within populations was 2.51%, 2.22%, and 1.91% for Satun, Trat, and Surat, respectively. Geographic heterogeneity analysis indicated population differentiation between P. monodon from the Andaman Sea and P. monodon from the Gulf of Thailand (p <.0001). On the basis of the high genetic diversity level of P. monodon in Thailand, the Satun and Trat P. monodon populations from the west and east of the pennisula were selected to be founder stocks in our selective breeding program.

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“…Recently, many estimates of heritability and genetic correlation of growth traits have been obtained in shrimp species, such as Penaeus stylirostris [2] , Penaeus japonicus [3 5] , Penaeus monodon [6] , Penaeus vannamei [7 11] . The genetic linkage maps are powerful tools for genetic improvement in aquaculture.…”

mentioning

confidence: 99%

Construction of AFLP-based genetic linkage maps for the Chinese shrimp Fenneropaeneus chinensis

2008

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Estimates for the heritability of size in juvenile Penaeus monodon prawns from half-sib matings

Cited by 60 publications

References 5 publications

Artificial family selection based on growth rate in cultivated lines of Litopenaeus vannamei (Decapoda, Penaeidae) from Venezuela

Artificial family selection based on growth rate in cultivated lines of Litopenaeus vannamei (Decapoda, Penaeidae) from Venezuela

Mitochondrial DNA Diversity in Three Populations of the Giant Tiger Shrimp Penaeus monodon

Construction of AFLP-based genetic linkage maps for the Chinese shrimp Fenneropaeneus chinensis

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