Taxonomic study of the brown algal genus Chorda (Chordaceae, Laminariales) with description of the new species Chorda borealis from Alaska and northern Canada
Chorda borealis sp. nov. is newly described from Alaska and northern Canada. Chorda borealis resembles C. filum and C. asiatica in gross morphology, but has a thinner cortical layer than those two taxa and is genetically distinct in the mitochondrial cox 1 and cox 3, plastid atp B, psb A and rbc L,...
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Taylor & Francis
2019
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ftdatacite:10.6084/m9.figshare.8326658.v1 2023-05-15T14:58:41+02:00 Taxonomic study of the brown algal genus Chorda (Chordaceae, Laminariales) with description of the new species Chorda borealis from Alaska and northern Canada Kawai, Hiroshi Suzuki, Masahiro W. Saunders, Gary Hanyuda, Takeaki 2019 https://dx.doi.org/10.6084/m9.figshare.8326658.v1 https://tandf.figshare.com/articles/dataset/Taxonomic_study_of_the_brown_algal_genus_i_Chorda_i_Chordaceae_Laminariales_with_description_of_the_new_species_i_Chorda_borealis_i_from_Alaska_and_northern_Canada/8326658/1 unknown Taylor & Francis https://dx.doi.org/10.1080/09670262.2019.1610580 https://dx.doi.org/10.6084/m9.figshare.8326658 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 CC-BY Cell Biology Genetics FOS Biological sciences Evolutionary Biology 59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences Ecology Developmental Biology Inorganic Chemistry FOS Chemical sciences Plant Biology Dataset dataset 2019 ftdatacite https://doi.org/10.6084/m9.figshare.8326658.v1 https://doi.org/10.1080/09670262.2019.1610580 https://doi.org/10.6084/m9.figshare.8326658 2022-03-10T11:47:32Z Chorda borealis sp. nov. is newly described from Alaska and northern Canada. Chorda borealis resembles C. filum and C. asiatica in gross morphology, but has a thinner cortical layer than those two taxa and is genetically distinct in the mitochondrial cox 1 and cox 3, plastid atp B, psb A and rbc L, and nuclear rDNA ITS1-5.8S-ITS2 region DNA sequences. The erect thalli are simple, cord-shaped, medium to light brown, and up to 90 cm in length and 2 mm in diameter. The mid-thallus cortex is composed of 2–4 cells and is 110–230 µm thick. When mature, unilocular zoidangia develop among unicellular clavate paraphyses and measure 30–48 µm long and 8–13 µm in diameter, containing presumably 16 zooids, each with an eyespot. The distributional pattern of C. borealis , which is distributed from the northern Pacific Ocean to the Labrador Sea and connected to the north-western Atlantic through the Arctic, suggests that the dispersal of Chorda species from the Pacific to the Atlantic could have occurred along the coasts of the north-western Arctic Sea. Dataset Arctic Labrador Sea Alaska DataCite Metadata Store (German National Library of Science and Technology) Arctic Canada Pacific |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
Cell Biology Genetics FOS Biological sciences Evolutionary Biology 59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences Ecology Developmental Biology Inorganic Chemistry FOS Chemical sciences Plant Biology |
spellingShingle |
Cell Biology Genetics FOS Biological sciences Evolutionary Biology 59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences Ecology Developmental Biology Inorganic Chemistry FOS Chemical sciences Plant Biology Kawai, Hiroshi Suzuki, Masahiro W. Saunders, Gary Hanyuda, Takeaki Taxonomic study of the brown algal genus Chorda (Chordaceae, Laminariales) with description of the new species Chorda borealis from Alaska and northern Canada |
topic_facet |
Cell Biology Genetics FOS Biological sciences Evolutionary Biology 59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences Ecology Developmental Biology Inorganic Chemistry FOS Chemical sciences Plant Biology |
description |
Chorda borealis sp. nov. is newly described from Alaska and northern Canada. Chorda borealis resembles C. filum and C. asiatica in gross morphology, but has a thinner cortical layer than those two taxa and is genetically distinct in the mitochondrial cox 1 and cox 3, plastid atp B, psb A and rbc L, and nuclear rDNA ITS1-5.8S-ITS2 region DNA sequences. The erect thalli are simple, cord-shaped, medium to light brown, and up to 90 cm in length and 2 mm in diameter. The mid-thallus cortex is composed of 2–4 cells and is 110–230 µm thick. When mature, unilocular zoidangia develop among unicellular clavate paraphyses and measure 30–48 µm long and 8–13 µm in diameter, containing presumably 16 zooids, each with an eyespot. The distributional pattern of C. borealis , which is distributed from the northern Pacific Ocean to the Labrador Sea and connected to the north-western Atlantic through the Arctic, suggests that the dispersal of Chorda species from the Pacific to the Atlantic could have occurred along the coasts of the north-western Arctic Sea. |
format |
Dataset |
author |
Kawai, Hiroshi Suzuki, Masahiro W. Saunders, Gary Hanyuda, Takeaki |
author_facet |
Kawai, Hiroshi Suzuki, Masahiro W. Saunders, Gary Hanyuda, Takeaki |
author_sort |
Kawai, Hiroshi |
title |
Taxonomic study of the brown algal genus Chorda (Chordaceae, Laminariales) with description of the new species Chorda borealis from Alaska and northern Canada |
title_short |
Taxonomic study of the brown algal genus Chorda (Chordaceae, Laminariales) with description of the new species Chorda borealis from Alaska and northern Canada |
title_full |
Taxonomic study of the brown algal genus Chorda (Chordaceae, Laminariales) with description of the new species Chorda borealis from Alaska and northern Canada |
title_fullStr |
Taxonomic study of the brown algal genus Chorda (Chordaceae, Laminariales) with description of the new species Chorda borealis from Alaska and northern Canada |
title_full_unstemmed |
Taxonomic study of the brown algal genus Chorda (Chordaceae, Laminariales) with description of the new species Chorda borealis from Alaska and northern Canada |
title_sort |
taxonomic study of the brown algal genus chorda (chordaceae, laminariales) with description of the new species chorda borealis from alaska and northern canada |
publisher |
Taylor & Francis |
publishDate |
2019 |
url |
https://dx.doi.org/10.6084/m9.figshare.8326658.v1 https://tandf.figshare.com/articles/dataset/Taxonomic_study_of_the_brown_algal_genus_i_Chorda_i_Chordaceae_Laminariales_with_description_of_the_new_species_i_Chorda_borealis_i_from_Alaska_and_northern_Canada/8326658/1 |
geographic |
Arctic Canada Pacific |
geographic_facet |
Arctic Canada Pacific |
genre |
Arctic Labrador Sea Alaska |
genre_facet |
Arctic Labrador Sea Alaska |
op_relation |
https://dx.doi.org/10.1080/09670262.2019.1610580 https://dx.doi.org/10.6084/m9.figshare.8326658 |
op_rights |
Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.6084/m9.figshare.8326658.v1 https://doi.org/10.1080/09670262.2019.1610580 https://doi.org/10.6084/m9.figshare.8326658 |
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