Molecular population structure of the kuruma shrimp Penaeus
 japonicus species complex in western Pacific

Tsoi, Kwok Ho; Chan, Tin‐Yam; Chu, Ka Hou

doi:10.1007/s00227-006-0426-x

Cited by 40 publications

(28 citation statements)

References 74 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Variation among cultured stocks is, in general, reported to be reduced in comparison to that of wild populations (Benzie, 2009). For commercial penaeid species other than L. vannamei, reported heterozygosities among natural populations, estimated through microsatellite loci, usually reach over 90% (Tsoi et al, 2007;You et al, 2008). However, average values reported for four populations of native L. vannamei from Mexico to Panama were 32 and 68%, for observed and expected heterozygosities, respectively (Valles-Jimenez et al, 2005).…”

Section: Resultsmentioning

confidence: 99%

Genetic variability of marine shrimp in the Brazilian industry

Maggioni

Coimbra

Costa

et al. 2013

Pesq. agropec. bras.

View full text Add to dashboard Cite

-The objective of this work was to estimate the genetic variability level and distribution in Brazilian broodstocks of marine shrimp (Litopenaeus vannamei). Nine of the country's largest hatcheries were evaluated using codominant and highly polymorphic microsatellite markers. The results obtained from genotyping of ten microsatellite loci are indicative of genetic variability that is compatible with that found in wild populations of L. vannamei in Mexico and Central America. A possible explanation is the highly diversified and relatively recent origin of the available broodstocks. Bayesian analysis detected a signal for five founding populations. The distribution of genetic distances partially reflects geographical location, and this information will be useful for the creation of new broodstocks. Therefore, L. vannamei genetic variability among nine of the largest national hatcheries can be considered high.Index terms: Litopenaeus vannamei, aquaculture, microsatellite, shrimp farming. Variabilidade genética do camarão marinho na indústria brasileiraResumo -O objetivo deste trabalho foi estimar o nível e a distribuição da variabilidade genética em reprodutores brasileiros do camarão marinho (Litopenaeus vannamei). Nove dos maiores laboratórios de maturação do país foram analisados por meio de marcadores microssatélites codominantes e altamente polimórficos. Os resultados obtidos a partir da genotipagem de dez locos de microssatélites são indicativos de variabilidade genética compatível com aquela encontrada em populações naturais de L. vannamei no México e na América Central. Uma possível explicação é a origem altamente diversificada e relativamente recente dos plantéis disponíveis. A análise bayesiana detectou sinal correspondente a cinco populações originais. A distribuição das distâncias genéticas reflete parcialmente a localização geográfica, e essa informação será útil na formação de novos plantéis. Portanto, a variabilidade genética de L. vannamei entre nove dos maiores laboratórios de maturação nacionais pode ser considerada alta.Termos para indexação: Litopenaeus vannamei, aquacultura, microssatélite, carcinicultura.

show abstract

Section: Resultsmentioning

confidence: 99%

Genetic variability of marine shrimp in the Brazilian industry

Maggioni

Coimbra

Costa

et al. 2013

Pesq. agropec. bras.

View full text Add to dashboard Cite

show abstract

“…In all previous studies, only shrimps from three to four localities are included, and the total number of individuals studied is less than 100 (e.g., only 24 in the 16S rRNA study by Quan et al 2001, and 60 in the microsatellite study by Liu et al 2004). It has been shown in the P. japonicus species complex that the mitochondrial DNA data give a clearer picture of population differentiation patterns than microsatellites (Tsoi et al 2007). Yet the mitochondrial 16S rRNA and COI genes used in the previous studies on P. chinensis are often used in elucidating population structure of penaeid shrimps over a broad geographic range (Klinbunga et al 2001;Tsoi et al 2007), but are too conserved to reveal genetic structure in a small geographic scale (Tsoi et al 2007), as in the case of P. chinensis.…”

Section: Introductionmentioning

confidence: 98%

“…It has been shown in the P. japonicus species complex that the mitochondrial DNA data give a clearer picture of population differentiation patterns than microsatellites (Tsoi et al 2007). Yet the mitochondrial 16S rRNA and COI genes used in the previous studies on P. chinensis are often used in elucidating population structure of penaeid shrimps over a broad geographic range (Klinbunga et al 2001;Tsoi et al 2007), but are too conserved to reveal genetic structure in a small geographic scale (Tsoi et al 2007), as in the case of P. chinensis. In the present study, we attempted to explore further the possible genetic differentiation of P. chinensis populations in the Bohai Sea and Yellow Sea by increasing the number of sampling localities and sample size, and by using the highly variable mitochondrial control region as the genetic marker, which has a high resolving power at the population level in penaeid shrimps (Chu et al 2003;Bert 2003, 2004;Valles-Jimenez et al 2006;Tsoi et al 2005Tsoi et al , 2007.…”

Section: Introductionmentioning

confidence: 98%

“…Yet the mitochondrial 16S rRNA and COI genes used in the previous studies on P. chinensis are often used in elucidating population structure of penaeid shrimps over a broad geographic range (Klinbunga et al 2001;Tsoi et al 2007), but are too conserved to reveal genetic structure in a small geographic scale (Tsoi et al 2007), as in the case of P. chinensis. In the present study, we attempted to explore further the possible genetic differentiation of P. chinensis populations in the Bohai Sea and Yellow Sea by increasing the number of sampling localities and sample size, and by using the highly variable mitochondrial control region as the genetic marker, which has a high resolving power at the population level in penaeid shrimps (Chu et al 2003;Bert 2003, 2004;Valles-Jimenez et al 2006;Tsoi et al 2005Tsoi et al , 2007. The mutation rate of CR was estimated to be about 19% per MY (McMillen-Jackson and Bert 2003), as compared to 0.9% per MY for the 16S rRNA gene (Sturmbauer et al 1996) and 1.4% per MY for the COI gene (Knowlton and Weigt 1998).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Lack of Genetic Differentiation in the Shrimp Penaeus Chinensis in the Northwestern Pacific

Cui

Jang

et al. 2007

Biochem Genet

View full text Add to dashboard Cite

Genetic differentiation of the shrimp Penaeus chinensis in the Yellow Sea and Bohai Sea was investigated using the mitochondrial control region (CR). RFLP of a partial CR segment (613 bp) shows that 106 out of 122 (86.9%) individuals from six sampling localities along the coast of northern China and the west coast of the Korean Peninsula share the same haplotype, and the haplotype frequencies among localities are not significantly different. The findings are further confirmed by sequencing the complete CR. Divergence of the complete CR (992 bp) is less than 1.6% in 14 individuals from the six localities. F-statistics based on RFLP data and the TCS network of sequencing data suggest little genetic differentiation of P. chinensis in the Yellow Sea and Bohai Sea. Mismatch analysis suggests a rapid expansion of P. chinensis population to the Yellow Sea and the Bohai Sea, which probably occurred with the rapid rise in sea level after the last glacial maximum. Despite the lack of genetic heterogeneity, we propose that P. chinensis populations in this region should be treated as separate management units, as fishery management programs have to be applied on a local basis by different governments.

show abstract

“…morphologically indistinguishable, but genetically distinct) of other decapod crustaceans (Bickford et al 2007;Knowlton 1986;Pfenninger & Schwenk 2007). In particular, studies have reported a 6-8% divergence between two cryptic species of the kuruma shrimp, Penaeus japonicus (Tsoi et al 2007(Tsoi et al , 2005, a 2-5% divergence between two sibling alpheid species, Alpheus angulatus and A. armillatus (Mathews et al 2002), two morphologically indistinguishable clades within Fenneropenaus (Penaeus) merguiensis with an average divergence of 5% (Hualkasin et al 2003) and 2-7% genetic divergence among sister groups of Portunus spp. (Lai et al 2010).…”

Section: Cryptic Diversity and Its Implicationsmentioning

confidence: 99%