Molecular Phylogeny of Western Atlantic Farfantepenaeus and Litopenaeus Shrimp Based on Mitochondrial 16S Partial Sequences

Maggioni, Rodrigo; Rogers, Alex D.; Maclean, Norman; D’Incao, Fernando

doi:10.1006/mpev.2000.0866

Cited by 75 publications

(39 citation statements)

References 21 publications

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“…For both shrimp species there was a bias towards A + T in the base-pair composition of both the 16S rRNA and COI gene sequences, which is commonly the case in most penaeid species (Baldwin et al, 1998;Maggioni et al, 2001). Although 16S rRNA analysis failed to discriminate genetic differences between the L. vannamei broodstocks it was able to distinguish haplotypes and 41 divergent sites between L. vannamei and F. subtilis.…”

Section: Discussionmentioning

confidence: 94%

“…The 16S rRNA region is known to be conserved and have a low rate of evolution (Meyer, 1994) which means that it is more accurate in discriminating between species than within species. In shrimp, 16S rRNA sequencing has been found to be able to characterize a morphotype usually identified as F. subtilis but which displays a different genetic pattern and could be regarded as a new species (Maggioni et al, 2001). However, the low evolutionary rate of the 16S rRNA gene means that there is little or no differentiation between sequences from specimens belonging to the same species, the homogeneity of the L. vannamei broodstocks seen in our study probably being related to the conserved nature of this gene.…”

Section: Discussionmentioning

confidence: 99%

“…Mitochondrial DNA (mtDNA) shows a high level of polymorphism and an evolutionary rate 10 times faster than nuclear genomes and is subject to maternal and asexual inheritance (Awadalla et al, 1999), characteristics which make mtDNA very useful for genetic studies in aquaculture (Allegrucci et al, 1998). Sequence analyses of mtDNA have been widely used in phylogenetic studies of natural shrimp populations (Bouchon et al, 1994;Baldwin et al, 1998;Klinbunga et al, 1999;Gusmão et al, 2000;Maggioni et al, 2001) and to evaluate genetic divergence between captive populations (Iguchi et al, 1999;Sekino et al, 2002). The 16S rRNA gene is found in the conserved portion of the mtDNA and has been extensively used in phylogenetic studies while the cytochrome oxidase I (COI) gene, which seems to be less conserved than the 16S rRNA gene, has been frequently used in evolutionary studies (Clary and Wolstenholme, 1985;Beard et al, 1993).…”

Section: Introductionmentioning

confidence: 99%

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Genetic distance between broodstocks of the marine shrimp Litopenaeus vannamei (Decapoda, Penaeidae) by mtDNA analyses

Francisco

Galetti

2005

Genet. Mol. Biol.

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In the constantly growing Brazilian shrimp industry the evaluation of genetic relationships between broodstocks is an useful tool for shrimp culture management programs. We established the genetic relationships between five broodstocks of the white marine shrimp Litopenaeus vannamei (Penaeidae) based on the sequencing of the mtDNA 16S rRNA and cytochrome oxidase I (COI) regions. Although no divergence was found between the broodstocks for the highly conservative 16S rRNA gene, we did find an 8.2% distance between L. vannamei and the Farfantepenaeus subtilis. Analyses of the COI region showed genetic distances of only 0.2 to 1% between the broodstocks, which contrasted with the 10.9% mean distance found between L. vannamei and F. subtilis. The small genetic distance values obtained may be related to genetic drift or a founder effect that occurred during broodstocks establishment. The mtDNA analysis was able to characterize the genetic divergence between the broodstocks studied and could be helpful for defining better management strategies of these crustacea.

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Section: Discussionmentioning

confidence: 94%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Genetic distance between broodstocks of the marine shrimp Litopenaeus vannamei (Decapoda, Penaeidae) by mtDNA analyses

Francisco

Galetti

2005

Genet. Mol. Biol.

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“…Genetic analyses revealed a new (cryptic) Brazilian species of Farfantepenaeus (Farfantepenaeus sp. ; formerly Penaeus subtilis 1 ) ranging from Rio de Janeiro to Northeast Brazil, showing that Penaeus subtilis (sensu Pérez Farfante, 1969) was in fact a mixture of two different species (Gusmão et al, 2000;Maggioni et al, 2001).…”

Section: Introductionmentioning

confidence: 99%

Population genetic structure of Brazilian shrimp species (Farfantepenaeus sp., F. brasiliensis, F. paulensis and Litopenaeus schmitti: Decapoda: Penaeidae)

2005

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Penaeid shrimps are important resources for worldwide fisheries and aquaculture. In the Southwest Atlantic, Farfantepenaeus brasiliensis, F. paulensis, F. subtilis, Farfantepenaeus sp. and Litopenaeus schmitti are among the most important commercially exploited species. Despite their high commercial value, there is little information available on the different aspects of their biology or genetics and almost no data on their stock structure. We used allozymes to estimate variability levels and population genetic structure of F. brasiliensis, F. paulensis, L. schmitti and the recently detected species Farfantepenaeus sp. along as much as 4,000 km of Brazilian coastline. No population heterogeneity was detected in F. brasiliensis or L. schmitti along the studied area. In contrast, F ST values found for Farfantepenaeus sp. and F. paulensis indicate that the populations of those two species are genetically structured, comprising different fishery stocks. The largest genetic differences in F. paulensis were found between Lagoa dos Patos (South) and the two populations from Southeast Brazil. In Farfantepenaeus sp., significant differences were detected between the population from Recife and those from Fortaleza and Ilhéus.

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“…However, genetic studies of natural populations of Brazilian shrimps have been conducted only for the genera Farfantepenaeus and Litopenaeus (e.g., Gusmão et al, 2000;Maggioni et al, 2001;Gusmão et al, 2004). In addition, until now, despite its economic importance, the genetic structure of populations of X. kroyeri has never been studied.…”

Section: Introductionmentioning

confidence: 99%

Genetic structure of the sea-bob shrimp (Xiphopenaeus kroyeri Heller, 1862; Decapoda, Penaeidae) along the Brazilian southeastern coast

Voloch

Solé‐Cava

2005

Genet. Mol. Biol.

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The sea-bob shrimp, Xiphopenaeus kroyeri, is one of the most important economic marine resources along the entire Brazilian coast. Nevertheless, despite its economic importance, no studies have examined the population genetics of this species. In this paper, we used ten allozyme loci to study the pattern of genetic structuring in X. kroyeri along the southeastern Brazilian coast. Seven of the ten analyzed loci were polymorphic, yielding observed heterozygosity values higher than those reported for other penaeid shrimps. The population from São Paulo was significantly different from the other two populations (Rio de Janeiro and Espírito Santo), which, in turn, seem to form a single panmitic unit. Therefore, our results clearly indicate that conservation policies for this species should consider the São Paulo population as an independent stock from those of Rio de Janeiro and Espírito Santo.

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Molecular Phylogeny of Western Atlantic Farfantepenaeus and Litopenaeus Shrimp Based on Mitochondrial 16S Partial Sequences

Cited by 75 publications

References 21 publications

Genetic distance between broodstocks of the marine shrimp Litopenaeus vannamei (Decapoda, Penaeidae) by mtDNA analyses

Genetic distance between broodstocks of the marine shrimp Litopenaeus vannamei (Decapoda, Penaeidae) by mtDNA analyses

Population genetic structure of Brazilian shrimp species (Farfantepenaeus sp., F. brasiliensis, F. paulensis and Litopenaeus schmitti: Decapoda: Penaeidae)

Genetic structure of the sea-bob shrimp (Xiphopenaeus kroyeri Heller, 1862; Decapoda, Penaeidae) along the Brazilian southeastern coast

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