Trans-Atlantic Distribution of a Mangrove Oyster Species Revealed by 16S mtDNA and Karyological Analyses

  title={Trans-Atlantic Distribution of a Mangrove Oyster Species Revealed by 16S mtDNA and Karyological Analyses},
  author={Sylvie Lap{\`e}gue and Isabelle Boutet and Alexandra Leit{\~a}o and Serge Heurtebise and Pascale Garcia and Catherine Thiriot-Qui{\'e}vreux and Pierre Boudry},
  journal={The Biological Bulletin},
  pages={232 - 242}
Three species of mangrove oysters, Crassostrea rhizophorae, C. brasiliana, and C. gasar, have been described along the Atlantic shores of South America and Africa. Because the distribution of these molluscs is of great biological and commercial interest, their taxonomy and distribution deserve further clarification. Therefore, 15 populations were sampled from both continents. Their 16S mitochondrial polymorphism was studied by sequencing and PCR-RFLP analysis. Two haplotypes were identified… 
Molecular identification and distribution of mangrove oysters ( Crassostrea) in an estuarine ecosystem in Southeast Brazil: implications for aquaculture and fisheries management
The occurrence of an exotic species in the Cananeia estuary may have strong ecological and economic implications which require new guidelines for farming, conservation and sustainable fisheries management for the native oyster species.
Morphological and mitochondrial-DNA analysis of the Indo-West Pacific rock oysters (Ostreidae: Saccostrea species)
Phylogenetic analyses using partial mitochondrial 16S DNA sequences of approximately 513 base pairs identified two clades that correspond to superspecies, i.e. S. cucullata and S. mordax, comprising nine and two lineages from the Indo-West Pacific, respectively.
Genetic characterisation of oyster populations along the north-eastern coast of Tunisia
To identify oysters of the Tunisian north-east coast, a 16S rRNA mitochondrial fragment was sequenced from 68 oysters sampled from the Bizert Lagoon and the Gulf of Hammamet in northern Tunisia to show the presence of both Ostreola stentina and Crassostrea gigas, which could not be detected on the basis of shell morphology only.
Molecular identification of cryptic species of oysters (Genus Crassostrea Sacco, 1897) in the northeast Atlantic coast of Brazil
This study identified the oysters of the Bahia State, northeast Brazil, using the molecular tools Polymerase Chain Reaction, Restriction Fragment Length Polymorphism, DNA sequencing and phylogenetic analysis and confirmed the presence of two species of oysters: Crassostrea rhizophorae and C. gasar.
Molecular identification of native oysters on the coast of Maranhão, Brazil
The results of the Multiplex PCR revealed two distinct bands characteristic of the species C. gasar and C. brasiliana, reinforcing the taxonomic problems in this group, which supports the synonymization of these species.
Molecular identification, phylogeny and geographic distribution of Brazilian mangrove oysters (Crassostrea)
Oysters (Ostreidae) manifest a high degree of phenotypic plasticity, whereby morphology is of limited value for species identification and taxonomy. By using molecular data, the aim was to
Phylogeny and phylogeography of Atlantic oyster species: evolutionary history, limited genetic connectivity and isolation by distance
The phylogenetic relationships between naturally occurring Atlantic Crassostrea oyster species were inferred through analyses of mitochondrial (cytochrome oxidase subunit I and 16S) and nuclear
First molecular record of the alien species Pacific oyster (Crassostrea gigas, Thunberg 1793) in the Marmara Sea, Turkey
The Pacific oyster (Crassostrea gigas) has a very important economic potential for aquaculture, but on the other hand, is among the highly invasive species in the world and within the Mediterranean
First Molecular Record of the Pacific Oyster (Crassostrea gigas, Thunberg 1793) in the Marmara Sea, Turkey
The results of this study provided the first molecular evidence for the presence of non-native Pacific oyster individuals in the Marmara Sea.
Polymorphic microsatellite loci for two Atlantic oyster species: Crassostrea rhizophorae and C. gasar
Polymorphic microsatellite loci are useful for evolution and population genetics studies of Crassostrea species and may provide fundamental data for the future cultivation of native oysters in Western Atlantic.


Genetic evidence of the presence of two species of Crassostrea (Bivalvia: Ostreidae) on the coast of Brazil
Levels of population structure in C. rhizophorae along 1300 km of coast were very low, indicating that the planktonic, planktotrophic larvae of these species are capable of long-range dispersal.
The phylogeny of Eucidaris confirms Ernst Mayr's conclusions that major barriers to the dispersal of tropical echinoids have been the wide stretch of deep water between central and eastern Pacific, the cold water off the southwest coast of Africa, and the Isthmus of Panama and suggests that a colonization event in the eastern Pacific has led to speciation between mainland and island populations.
Mitochondrial cytochrome oxidase I gene sequences support an Asian origin for the Portuguese oyster Crassostrea angulata
The results show that Portuguese oyster haplotypes cluster robustly within a clade of Asian congeners and are closely related, but not identical, to C. gigas from Japan.
Occurrence of the Kumamoto oyster Crassostrea sikamea in the Ariake Sea, Japan
Abstract The Kumamoto oyster Crassostrea sikamea is distinguished from the closely related Pacific oyster C. gigas by concordant differences in 16S rDNA, allozymes, and a one-way gametic
Discrimination between closely related Pacific oyster species (Crassostrea) via mitochondrial DNA sequences coding for large subunit rRNA.
DNA sequence-specific discrimination techniques were developed and employed sequence- specific PCR primers, dot-blot hybridization, and restriction digests as alternate techniques for rapid diagnosis of Crassostrea oyster larvae.
Phylogenetic analysis of southern hemisphere flat oysters based on partial mitochondrial 16S rDNA gene sequences.
This is the first DNA molecular phylogenetic analysis of ostreinid taxa to distinguish among competing phylogenetic and systematic hypotheses for Southern Hemisphere Ostreinae, and represents the first well-supported phylogenetic framework for this ecologically prominent and commercially important oyster subfamily.
Molecular phylogenetics of cupped oysters based on partial 28S rRNA gene sequences.
Molecular data from domains D1, D2, and partial D3 of the 28S rDNA supply sufficient phylogenetic information to determine systematic relationships among the extant oyster taxa, from the major species groups to the family level, thus providing valuable characters that are able to supplement the paucity of morphological characters so far recognized.