DNA barcodes for species identification of euphausiids (Euphausiacea, Crustacea)

Bucklin, Ann; Wiebe, Peter H.; Smolenack, Sara B.; Copley, Nancy J.; Beaudet, Jason G.; Bonner, Kaitlin G.; Färber-Lorda, Jaime; Pierson, James J.

doi:10.1093/plankt/fbm031

Cited by 80 publications

(48 citation statements)

References 33 publications

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“…2), with previous studies reporting similar differences (e.g., Shaw 2002, Bucklin et al 2007). Considering the differences in sequences of the two loci, the reproductive isolation among the genetic groups in the present study must be robust.…”

Section: Reproductive Isolation Among Genetic Groupssupporting

confidence: 71%

Occurrence of the <i>Paracalanus parvus</i> species complex in offshore waters south of Japan and their genetic and morphological identification to species

Hidaka

Itoh²,

Hirai

et al. 2016

Plankton Benthos Res

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Abstract:The Paracalanus parvus species complex is one of the most dominant and ecologically important copepod groups in the waters around Japan. However, the overall taxonomic classification of the species complex has not been sufficiently defined to date. In this study, both genetic and morphological analyses were performed on specimens of the P. parvus species complex collected along the O-line , a monitoring line located at 138°E, south of Japan. Among the individuals collected, P. nanus specimens were clearly distinguishable morphologically, whereas other specimens could be classified into three reproductively isolated species. These distinctions are based on genetic analyses of the mitochondrial cytochrome oxidase subunit I (mtCOI) and nuclear large subunit (nLSU) ribosomal RNA. By comparing the genetic and morphological data with findings from previous studies, these three species were identified as P. tropicus, P. indicus, and an as-yet undescribed species (Paracalanus sp. (NWP)). The latter possesses a humped forehead and was found to be a dominant species within the surveyed continental slope area. As a distinguishing characteristic, the humped forehead was not consistently useful as it was prominent in only about half of the individuals collected. Morphological discrimination between this species and P. indicus was only made possible by comparing the relative length of exopod segment 3 on swimming leg 4. Despite morphological similarities among member species, ecological studies on the P. parvus species complex conducted around Japan may mostly concern the undescribed species, Paracalanus sp. (NWP), considering that P. indicus was found only in warmer waters in this study.

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Section: Reproductive Isolation Among Genetic Groupssupporting

confidence: 71%

Occurrence of the <i>Paracalanus parvus</i> species complex in offshore waters south of Japan and their genetic and morphological identification to species

Hidaka

Itoh²,

Hirai

et al. 2016

Plankton Benthos Res

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“…could not be distinguished morphologically (Fig. 2) DNA barcoding, a standard tool to identify zooplankton taxa with widespread or disjoint distributions (Knowlton 2000;Bucklin et al 2007;Thatje 2012). Possibilities for the similarity between the two Mya morphotypes could be that M. truncata and Mya sp.…”

Section: Discussion Identifying Arctic Bivalve Larvaementioning

confidence: 99%

Seasonality of bivalve larvae within a high Arctic fjord

et al. 2016

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The temporal and spatial distribution of larval plankton of high latitudes is poorly understood. The objective of this work is to identify the occurrence and abundance of pelagic bivalve larvae within a high Arctic fjord (Adventfjorden, Svalbard) and to reveal their seasonal dynamics in relation to environmental variables-temperature, salinity and chlorophyll a-between December 2011 and January 2013. We applied a combination of DNA barcoding of mitochondrial 16S ribosomal RNA and morphological analysis to identify the bivalve larvae found within the plankton and demonstrate a strong seasonality in the occurrence of bivalve larvae, largely coinciding with periods of primary productivity. Seasonal occurrences of bivalve larval species differ from those known for other populations across species' biogeographic distribution ranges. Serripes groenlandicus, which is of circum-Arctic distribution, demonstrated a later occurrence than Mya truncata or Hiatella arctica, which are of predominantly boreal or cosmopolitan distribution, respectively. S. groenlandicus larvae demonstrate the most pronounced response to seasonality, with the shortest presence in the water column. Establishing latitudinal differences in the occurrence of bivalve larvae enhances our understanding of how reproductive traits of marine invertebrates may respond to climate-driven seasonal shifts in the occurrence of primary productivity.

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“…The efficiency of DNA barcoding has been reported in the detection and description of new cryptic species (Hansfield and Hansfield, 2006;Smith et al, 2006b;Anker et al, 2007;Bucklin et al, 2007;Gomez et al, 2007;Pfenninger et al, 2007;Tavares and Baker, 2008) and of sibling species (Hogg and Hebert, 2004;Amaral et al, 2007;Van Velzen et al, 2007). This identification tool can clearly give support to improve classifications and to critically examine the precision of morphological traits commonly used in taxonomy.…”

Section: International Barcode Of Life Project (Ibol) Is Now Under Dementioning

confidence: 99%

Four years of DNA barcoding: Current advances and prospects

Frézal

Leblois

2008

Infection, Genetics and Evolution

295

202

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DNA barcodes for species identification of euphausiids (Euphausiacea, Crustacea)

Cited by 80 publications

References 33 publications

Occurrence of the <i>Paracalanus parvus</i> species complex in offshore waters south of Japan and their genetic and morphological identification to species

Occurrence of the <i>Paracalanus parvus</i> species complex in offshore waters south of Japan and their genetic and morphological identification to species

Seasonality of bivalve larvae within a high Arctic fjord

Four years of DNA barcoding: Current advances and prospects

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