Cryptic speciation in the mesopelagic environment: Molecular phylogenetics of the lanternfish genus Benthosema

Zahuranec, Bernard J.; Karuppasamy, P.; Valinassab, Tooraj; Kidwai, Samina; Bernardi, Jeremy; Bernardi, Giacomo

doi:10.1016/j.margen.2012.05.001

Cited by 10 publications

(10 citation statements)

References 23 publications

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“…Nevertheless, recent studies have shown that undescribed species abound even in groups that were thought well known (Geiger et al, 2014). The pattern observed for L. achirus might be indicative of cryptic or undescribed species as found before in Myctophidae, for example in Benthosema pterotum (skinnycheek lanternfish; Zahuranec et al, 2012). Currently, there are two specimens of B. pterotum with COI sequences in BOLD (from Poulsen et al, 2013 andDenton, 2014) and they also show a deep split.…”

Section: Phylogeny and Phylogeography Of Southern Ocean Mesopelagic Fmentioning

confidence: 67%

“…Currently, there are two specimens of B. pterotum with COI sequences in BOLD (from Poulsen et al, 2013 andDenton, 2014) and they also show a deep split. Additional COI sequencing of the specimens used by Zahuranec et al (2012) could therefore enable fast, cost-efficient, and confident discrimination between the two cryptic species with COI in the future.…”

Section: Phylogeny and Phylogeography Of Southern Ocean Mesopelagic Fmentioning

confidence: 99%

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Diversity of Mesopelagic Fishes in the Southern Ocean - A Phylogeographic Perspective Using DNA Barcoding

et al. 2018

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Section: Phylogeny and Phylogeography Of Southern Ocean Mesopelagic Fmentioning

confidence: 67%

Section: Phylogeny and Phylogeography Of Southern Ocean Mesopelagic Fmentioning

confidence: 99%

Diversity of Mesopelagic Fishes in the Southern Ocean - A Phylogeographic Perspective Using DNA Barcoding

et al. 2018

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“…[ 5 – 14 ]), while recent research using DNA-based approaches has discovered additional biodiversity in the form of morphologically conserved cryptic species complexes (e.g. [ 3 , 4 , 15 , 16 ]). Further confounding understanding of the biodiversity of these fishes, the high cost of mid-ocean research leads to a paucity of sampling, hence also to a scarcity of specialist taxonomic expertise.…”

Section: Introductionmentioning

confidence: 99%

“…Of particular note here, by focusing the attention of many separate studies on the same gene and so allowing comparisons of sequences from multiple nominal species of fish in different regions, barcoding is proving valuable in highlighting cases of potential cryptic species, for subsequent detailed study (e.g. [ 3 , 15 , 16 , 22 – 32 ]). Evaluation of intra- and inter-species genetic divergence may additionally provide a universal value, the “barcode gap”, a necessary attribute for distinguishing species from higher taxa with such data.…”

Section: Introductionmentioning

confidence: 99%

Barcoding Atlantic Canada’s mesopelagic and upper bathypelagic marine fishes

et al. 2017

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DNA barcode sequences were developed from 557 mesopelagic and upper bathypelagic teleost specimens collected in waters off Atlantic Canada. Confident morphological identifications were available for 366 specimens, of 118 species and 93 genera, which yielded 328 haplotypes. Five of the species were novel to the Barcode of Life Database (BOLD). Most of the 118 species conformed to expectations of monophyly and the presence of a “barcode gap”, though some known weaknesses in existing taxonomy were confirmed and a deficiency in published keys was revealed. Of the specimens for which no firm morphological identification was available, 156 were successfully identified to species, and a further 11 to genus, using their barcode sequences and a combination of distance- and character-based methods. The remaining 24 specimens were from species for which no reference barcode is yet available or else ones confused by apparent misidentification of publicly available sequences in BOLD. Addition of the new sequences to those previously in BOLD contributed support to recent taxonomic revisions of Chiasmodon and Poromitra, while it also revealed 18 cases of potential cryptic speciation. Most of the latter appear to result from genetic divergence among populations in different ocean basins, while the general lack of strong horizontal environmental gradients within the deep sea has allowed morphology to be conserved. Other examples of divergence appear to distinguish individuals living under the sub-tropical gyre of the North Atlantic from those under that ocean’s sub-polar gyre. In contrast, the available sequences for two myctophid species, Benthosema glaciale and Notoscopelus elongatus, showed genetic structuring on finer geographic scales. The observed structure was not consistent with recent suggestions that “resident” populations of myctophids can maintain allopatry despite the mixing of ocean waters. Rather, it indicates that the very rapid speciation characteristic of the Myctophidae is both on-going and detectable using barcodes.

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“…: EU871696, EU871697, and JF952706) should be Cookeolus japonicus based on their intraspecies genetic distance. Cryptic species have been found in various fishes living in different habitats and more recently found in the lanternfish genus Benthosema, that are found on the mesopelagic zone (Zahuranec et al, 2012). Also DNA barcoding studies in the family Carangidae have successfully identified cryptic species diversity within a single known species (Mat Jaafar et al, 2012).…”

Section: Discussionmentioning

confidence: 99%

Molecular identification of Bigeyes (Perciformes, Priacanthidae) from Indian waters

Gopalakrishnan

et al. 2015

Mitochondrial DNA Part A

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Thirty-five individuals of six priacanthid fish species were sampled from different localities along the coast of India covering the Arabian Sea and Bay of Bengal. The partial sequence of 16S rRNA and cytochrome oxidase subunit I (COI) genes were analyzed for species identification and phylogenetic relationship among the Indian priacanthids (Priacanthus hamrur, P. prolixus, P. blochii, P. sagittarius, Cookeolus japonicus, and Pristigenys refulgens). The intraspecies genetic distance ranged from 0.000 to 0.002, while distances varied from 0.008 to 0.157 interspecies based on 16S sequences. Using COI data analysis, the intraspecies genetic distance ranged from 0.000 to 0.005, while interspecies distances varied from 0.009 to 0.108. Several sequences labeled Priacanthus hamrur in GenBank are shown to be P. prolixus. We also observed cryptic speciation in Heteropriacanthus cruentatus. Partial sequences of 16S rRNA and COI genes provided phylogenetic information to distinguish thirteen species of priacanthids, indicating the usefulness of molecular markers in species identification.

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Cryptic speciation in the mesopelagic environment: Molecular phylogenetics of the lanternfish genus Benthosema

Cited by 10 publications

References 23 publications

Diversity of Mesopelagic Fishes in the Southern Ocean - A Phylogeographic Perspective Using DNA Barcoding

Diversity of Mesopelagic Fishes in the Southern Ocean - A Phylogeographic Perspective Using DNA Barcoding

Barcoding Atlantic Canada’s mesopelagic and upper bathypelagic marine fishes

Molecular identification of Bigeyes (Perciformes, Priacanthidae) from Indian waters

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