Lack of COI variation for Clavelina oblonga (Tunicata, Ascidiacea) in Brazil: Evidence for its human-mediated transportation?

@article{Rocha2012LackOC,
  title={Lack of COI variation for Clavelina oblonga (Tunicata, Ascidiacea) in Brazil: Evidence for its human-mediated transportation?},
  author={Rosana Moreira da Rocha and Laura Pioli Kremer and Karin H. Fehlauer-Ale},
  journal={Aquatic Invasions},
  year={2012},
  volume={7},
  pages={419-424}
}
Recent studies indicate that ascidians are efficiently dispersed by human transport. We have chosen the mitochondrial gene cytochrome c oxidase subunit I (COI) to address whether Clavelina oblonga is an introduced species in the Brazilian coast. Colonies of C. oblonga were sampled in different localities along Atlantic coasts of USA, Panama, and Brazil. The sequencing of 92 colonies resulted in three haplotypes for the species, two unique to Florida and the other shared by exemplars collected… Expand

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References

SHOWING 1-10 OF 34 REFERENCES
Cryptic species of Clavelina (Ascidiacea) in two different habitats: harbours and rocky littoral zones in the northwestern Mediterranean
TLDR
It is argued that the study of species living both inside and outside these particular habitats will reveal more instances of genetic discontinuities allowing local adaptations, a pattern likely maintained by genetic exchange through ships. Expand
Lack of genetic variation in mtDNA sequences over the amphiatlantic distribution range of the ascidian Ecteinascidia turbinata.
TLDR
A fragment of the mtDNA gene COI was analyzed in an attempt to determine the intraspecific genetic structure and phylogeography of the ascidian E. turbinata over its amphiatlantic distribution range. Expand
Phylogeography of the widespread marine invader Microcosmus squamiger (Ascidiacea) reveals high genetic diversity of introduced populations and non-independent colonizations
TLDR
It is concluded that M. squamiger is native to Australia and has most likely expanded its range of distribution sequentially through worldwide shipping, especially from the harbours of the more populated eastern Australia. Expand
Characterising invasion processes with genetic data: an Atlantic clade of Clavelina lepadiformis (Ascidiacea) introduced into Mediterranean harbours
TLDR
The results support the hypothesis that both clades evolved allopatrically in the two seas, and that a recent colonisation of Mediterranean marinas from the Atlantic was caused by ship-hull transport. Expand
The Whereabouts of an Ancient Wanderer: Global Phylogeography of the Solitary Ascidian Styela plicata
TLDR
It is confirmed that S. plicata has been present in all studied oceans for a long time, and that recurrent colonization events and occasional shuffling among populations have determined the actual genetic structure of this species. Expand
Invasion patterns inferred from cytochrome oxidase I sequences in three bryozoans, Bugula neritina, Watersipora subtorquata, and Watersipora arcuata
TLDR
In each species, identical haplotypes were identified on separate coastlines providing evidence of widespread, rather than genetically independent, introductions, and the major contrast in nucleotide diversity suggests that different propagule-source models explain introductions. Expand
Multilocus genetic analyses differentiate between widespread and spatially restricted cryptic species in a model ascidian
TLDR
It is suggested that divergent evolutionary histories promoted differences in invasive potential between B. schlosseri sibling species, indicating that attributes that facilitate dramatic shifts in range limits can evolve more easily and frequently than previously thought. Expand
Introduced ascidians in Paranaguá Bay, Paraná, southern Brazil
TLDR
S sampling ascidian species near the port of Paranagua for a taxonomic study of this fauna to attempt to detect introduced species suggests that three species are native, one is a inter-regional introduction, two are introduced from the Pacific and the remaining 12 are cryptogenic. Expand
Genetic patterns across multiple introductions of the globally invasive crab genus Carcinus
TLDR
Patterns of genetic diversity across both the native and introduced ranges of C. maenas and its sister species, C. aestuarii are described, providing evidence of multiple invasions to Atlantic North America and South Africa, secondaryinvasions to the northeastern Pacific, Tasmania, and Argentina. Expand
Genetic conspecificity of the worldwide populations of Didemnum vexillum Kott, 2002.
TLDR
Molecular data on both mitochondrial and nuclear genes from colonies sampled from Europe, east and west coasts of North America, Japan, and New Zealand strongly indicate that Didemnum sp. Expand
...
1
2
3
4
...