Integrative taxonomy of crustacean y-larvae (Thecostraca: Facetotecta) using laboratory-rearing and molecular analyses of single specimens, with the description of a new vermiform species

Research output: Contribution to journal › Journal article › Research › peer-review

Standard

Integrative taxonomy of crustacean y-larvae (Thecostraca: Facetotecta) using laboratory-rearing and molecular analyses of single specimens, with the description of a new vermiform species. / Olesen, Jørgen; Dreyer, Niklas; Palero, Ferran; Eibye-Jacobsen, Danny; Fujita, Yoshihisa; Chan, Benny K. K.; Grygier, Mark J.

In: Zoological Journal of the Linnean Society, Vol. 196, No. 1, 2022, p. 549-592.

Research output: Contribution to journal › Journal article › Research › peer-review

Harvard

Olesen, J, Dreyer, N, Palero, F, Eibye-Jacobsen, D, Fujita, Y, Chan, BKK & Grygier, MJ 2022, 'Integrative taxonomy of crustacean y-larvae (Thecostraca: Facetotecta) using laboratory-rearing and molecular analyses of single specimens, with the description of a new vermiform species', Zoological Journal of the Linnean Society, vol. 196, no. 1, pp. 549-592. https://doi.org/10.1093/zoolinnean/zlac020

APA

Olesen, J., Dreyer, N., Palero, F., Eibye-Jacobsen, D., Fujita, Y., Chan, B. K. K., & Grygier, M. J. (2022). Integrative taxonomy of crustacean y-larvae (Thecostraca: Facetotecta) using laboratory-rearing and molecular analyses of single specimens, with the description of a new vermiform species. Zoological Journal of the Linnean Society, 196(1), 549-592. https://doi.org/10.1093/zoolinnean/zlac020

Vancouver

Olesen J, Dreyer N, Palero F, Eibye-Jacobsen D, Fujita Y, Chan BKK et al. Integrative taxonomy of crustacean y-larvae (Thecostraca: Facetotecta) using laboratory-rearing and molecular analyses of single specimens, with the description of a new vermiform species. Zoological Journal of the Linnean Society. 2022;196(1):549-592. https://doi.org/10.1093/zoolinnean/zlac020

Author

Olesen, Jørgen ; Dreyer, Niklas ; Palero, Ferran ; Eibye-Jacobsen, Danny ; Fujita, Yoshihisa ; Chan, Benny K. K. ; Grygier, Mark J. / Integrative taxonomy of crustacean y-larvae (Thecostraca: Facetotecta) using laboratory-rearing and molecular analyses of single specimens, with the description of a new vermiform species. In: Zoological Journal of the Linnean Society. 2022 ; Vol. 196, No. 1. pp. 549-592.

Bibtex

@article{4ca1b6d31d504cafb6e6b5932bd19b51,
title = "Integrative taxonomy of crustacean y-larvae (Thecostraca: Facetotecta) using laboratory-rearing and molecular analyses of single specimens, with the description of a new vermiform species",
abstract = "Facetotecta, the taxon established for {\textquoteleft}y-larvae{\textquoteright}, is the last major crustacean group for which the adult stage remains unknown. With only 14 described nominal species, all in the genus Hansenocaris, their incompletely known life cycle, small size and dearth of molecular data have hampered assessments of their true species diversity. Based on field studies during which > 11 000 y-larvae were sampled, a new integrative approach for studying the taxonomy of y-larvae is outlined. It focuses on last-stage nauplii and y-cyprids and includes methods for rearing lecithotrophic y-larvae for documenting the morphology of specimens with live photomicroscopy and scanning electron microscopy (SEM) and for obtaining molecular systematic data. This new and integrated approach, whereby each single specimen provides multiple kinds of information, was implemented to describe Hansenocaris demodex sp. nov., a unique y-larval form with semi-vermiform nauplii that occurs in the waters of Okinawa (southern Japan) and Taiwan. A preliminary Facetotecta phylogeny shows remarkable congruence between the morphology of all newly sequenced y-larvae and molecular data (18S rDNA). Four independent clades are formed by H. demodex and three other types/species of y-larvae, together being the sister-group to a smaller clade including H. itoi and unnamed species from GenBank.",
author = "J{\o}rgen Olesen and Niklas Dreyer and Ferran Palero and Danny Eibye-Jacobsen and Yoshihisa Fujita and Chan, {Benny K. K.} and Grygier, {Mark J.}",
year = "2022",
doi = "10.1093/zoolinnean/zlac020",
language = "English",
volume = "196",
pages = "549--592",
journal = "Zoological Journal of the Linnean Society ",
issn = "0024-4082",
publisher = "Oxford Academic",
number = "1",

}

RIS

TY - JOUR

T1 - Integrative taxonomy of crustacean y-larvae (Thecostraca: Facetotecta) using laboratory-rearing and molecular analyses of single specimens, with the description of a new vermiform species

AU - Olesen, Jørgen

AU - Dreyer, Niklas

AU - Palero, Ferran

AU - Eibye-Jacobsen, Danny

AU - Fujita, Yoshihisa

AU - Chan, Benny K. K.

AU - Grygier, Mark J.

PY - 2022

Y1 - 2022

N2 - Facetotecta, the taxon established for ‘y-larvae’, is the last major crustacean group for which the adult stage remains unknown. With only 14 described nominal species, all in the genus Hansenocaris, their incompletely known life cycle, small size and dearth of molecular data have hampered assessments of their true species diversity. Based on field studies during which > 11 000 y-larvae were sampled, a new integrative approach for studying the taxonomy of y-larvae is outlined. It focuses on last-stage nauplii and y-cyprids and includes methods for rearing lecithotrophic y-larvae for documenting the morphology of specimens with live photomicroscopy and scanning electron microscopy (SEM) and for obtaining molecular systematic data. This new and integrated approach, whereby each single specimen provides multiple kinds of information, was implemented to describe Hansenocaris demodex sp. nov., a unique y-larval form with semi-vermiform nauplii that occurs in the waters of Okinawa (southern Japan) and Taiwan. A preliminary Facetotecta phylogeny shows remarkable congruence between the morphology of all newly sequenced y-larvae and molecular data (18S rDNA). Four independent clades are formed by H. demodex and three other types/species of y-larvae, together being the sister-group to a smaller clade including H. itoi and unnamed species from GenBank.

AB - Facetotecta, the taxon established for ‘y-larvae’, is the last major crustacean group for which the adult stage remains unknown. With only 14 described nominal species, all in the genus Hansenocaris, their incompletely known life cycle, small size and dearth of molecular data have hampered assessments of their true species diversity. Based on field studies during which > 11 000 y-larvae were sampled, a new integrative approach for studying the taxonomy of y-larvae is outlined. It focuses on last-stage nauplii and y-cyprids and includes methods for rearing lecithotrophic y-larvae for documenting the morphology of specimens with live photomicroscopy and scanning electron microscopy (SEM) and for obtaining molecular systematic data. This new and integrated approach, whereby each single specimen provides multiple kinds of information, was implemented to describe Hansenocaris demodex sp. nov., a unique y-larval form with semi-vermiform nauplii that occurs in the waters of Okinawa (southern Japan) and Taiwan. A preliminary Facetotecta phylogeny shows remarkable congruence between the morphology of all newly sequenced y-larvae and molecular data (18S rDNA). Four independent clades are formed by H. demodex and three other types/species of y-larvae, together being the sister-group to a smaller clade including H. itoi and unnamed species from GenBank.

U2 - 10.1093/zoolinnean/zlac020

DO - 10.1093/zoolinnean/zlac020

M3 - Journal article

VL - 196

SP - 549

EP - 592

JO - Zoological Journal of the Linnean Society

JF - Zoological Journal of the Linnean Society

SN - 0024-4082

IS - 1

ER -

ID: 310494958