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Diversity and genetic connectivity of heteropod (Pterotracheoidea) gastropods in the Tropical Eastern Pacific
Collin, R.; Madrid, M.; Venera-Pontón, D.E.; Macdonald, K.S.; De León, A.; Vrdoljak, D.; Boyle, M.J.; Bryant, P.; Arehart, T.; Driskell, A.C. (2023). Diversity and genetic connectivity of heteropod (Pterotracheoidea) gastropods in the Tropical Eastern Pacific. Invertebr. Biol. 142(1): e12395. https://dx.doi.org/10.1111/ivb.12395
In: Invertebrate biology. Blackwell Publishing: Lawrence, Kan.. ISSN 1077-8306; e-ISSN 1744-7410
|  |
| Trefwoorden |
Atlanta Lesueur, 1817 [WoRMS]; Carinaria Lamarck, 1801 [WoRMS]; Firoloida Lesueur, 1817 [WoRMS]
Marien/Kust |
| Author keywords |
Atlanta; Carinaria; Firoloida; Indo-Pacific; population structure; upwelling |
| Auteurs | | Top |
- Collin, R.
- Madrid, M.
- Venera-Pontón, D.E.
- Macdonald, K.S.
|
- De León, A.
- Vrdoljak, D.
- Boyle, M.J.
|
- Bryant, P.
- Arehart, T.
- Driskell, A.C.
|
| Abstract |
Previous research focusing on pelagic gastropods in the open ocean has demonstrated that many morphospecies comprise multiple distinct clades or cryptic species that can be distinguished with DNA sequence data. To date, the genetic diversity of the pelagic gastropod fauna of the tropical East Pacific, especially in shallow coastal waters, remains largely unexplored. To document the diversity of pterotracheoids (formerly heteropods) from the coastal waters of the Bay of Panama, we collected, photographed and sequenced fragments of mitochondrial cytochrome c oxidase subunit I (COI) and 16S ribosomal DNA for 60 atlantids, 3 carinariids and 6 pterotracheids. In addition to the COI barcode, our results include the first published 16S sequences for these groups. We found 11 operational taxonomic units (OTUs): 9 in the genus Atlanta, 1 Carinaria and 1 Firoloida. We report the presence of Atlanta oligogyra (Clades A and B), Atlanta turriculata, Atlanta lesueurii, Atlanta helicinoidea (Clade B), Atlanta plana, Atlanta echinogyra, Atlanta inflata and Atlanta frontieri through comparisons of our sequences with previously published sequences. We did not find Atlanta gaudichaudi, Atlanta inclinata, Atlanta tokiokai, Atlanta gibbosa, Atlanta peronii, or Oxygyrus inflatus, which have previously been reported from the region. Haplotype networks and estimates of ΦST illustrate how some species show population differentiation across the tropical Indo-Pacific region, whereas others show little apparent population structure. For example, the most common haplotypes of A. inflata and of A. turriculata occur in the Indian Ocean, the Central and West Pacific and the tropical East Pacific, whereas individuals of A. frontieri from the Indian Ocean do not share haplotypes with individuals of A. frontieri from the Pacific Ocean. Analyses were limited by sample sizes, but these data suggest that population genetics approaches may be useful for reconstructing population histories of these important, but overlooked, components of the plankton. |
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