Chaetoceros pauciramosus sp. nov. (Bacillariophyceae), a Widely Distributed Brackish Water Species in the C. lorenzianus Complex

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Chaetoceros pauciramosus sp. nov. (Bacillariophyceae), a Widely Distributed Brackish Water Species in the C. lorenzianus Complex. / Chen, Zuo Yi; Lundholm, Nina; Moestrup, Øjvind; Kownacka, Janina; Li, Yang.

In: Protist, Vol. 169, No. 5, 01.11.2018, p. 615-631.

Research output: Contribution to journalJournal articlepeer-review

Harvard

Chen, ZY, Lundholm, N, Moestrup, Ø, Kownacka, J & Li, Y 2018, 'Chaetoceros pauciramosus sp. nov. (Bacillariophyceae), a Widely Distributed Brackish Water Species in the C. lorenzianus Complex', Protist, vol. 169, no. 5, pp. 615-631. https://doi.org/10.1016/j.protis.2018.06.007

APA

Chen, Z. Y., Lundholm, N., Moestrup, Ø., Kownacka, J., & Li, Y. (2018). Chaetoceros pauciramosus sp. nov. (Bacillariophyceae), a Widely Distributed Brackish Water Species in the C. lorenzianus Complex. Protist, 169(5), 615-631. https://doi.org/10.1016/j.protis.2018.06.007

Vancouver

Chen ZY, Lundholm N, Moestrup Ø, Kownacka J, Li Y. Chaetoceros pauciramosus sp. nov. (Bacillariophyceae), a Widely Distributed Brackish Water Species in the C. lorenzianus Complex. Protist. 2018 Nov 1;169(5):615-631. https://doi.org/10.1016/j.protis.2018.06.007

Author

Chen, Zuo Yi ; Lundholm, Nina ; Moestrup, Øjvind ; Kownacka, Janina ; Li, Yang. / Chaetoceros pauciramosus sp. nov. (Bacillariophyceae), a Widely Distributed Brackish Water Species in the C. lorenzianus Complex. In: Protist. 2018 ; Vol. 169, No. 5. pp. 615-631.

Bibtex

@article{6e1aa8ecc0ed4686b124a97ab617eb6e,
title = "Chaetoceros pauciramosus sp. nov. (Bacillariophyceae), a Widely Distributed Brackish Water Species in the C. lorenzianus Complex",
abstract = "To understand the diversity of the diatom genus Chaetoceros Ehrenberg, the C. lorenzianus complex was previously chosen as a model and three new species were described. In the present study, yet another new species, Chaetoceros pauciramosus sp. nov., was discovered from Chinese tropical waters and the temperate south-eastern Baltic Sea. In the latter locality it has been known since 2003 and identified as C. cf lorenzianus, and now found to comprise a dominating component of the autumn phytoplankton community. Vegetative cells and resting spores were examined by light and electron microscopy. The LSU and SSU of the nuclear rDNA were sequenced. The characters suggesting that C. pauciramosus belongs to C. lorenzianus complex are: 1) the vegetative cells contain four or more chloroplasts, 2) the cells have stiff setae and form regular straight chains, 3) the terminal setae differ in the direction from the intercalary setae. The relationship was well-supported by molecular phylogenetic analyses inferred from both LSU and SSU markers. The primary valve of the resting spore has two conical elevations, each with dichotomously branching processes, similar to other species in the C. lorenzianus complex. Each process forms a tree-like structure with the pointed distal tips which possess one or two thin spikes, that distinguishes C. pauciramosus from allied taxa. In the phylogenetic trees, Chaetoceros pauciramosus clustered with C. elegans, in agreement with their morphologically similar resting spores.",
keywords = "Chaetoceros, Chaetoceros pauciramosus., Diversity, molecular phylogeny, morphology",
author = "Chen, {Zuo Yi} and Nina Lundholm and {\O}jvind Moestrup and Janina Kownacka and Yang Li",
year = "2018",
month = nov,
day = "1",
doi = "10.1016/j.protis.2018.06.007",
language = "English",
volume = "169",
pages = "615--631",
journal = "Protist",
issn = "1434-4610",
publisher = "Elsevier GmbH - Urban und Fischer",
number = "5",

}

RIS

TY - JOUR

T1 - Chaetoceros pauciramosus sp. nov. (Bacillariophyceae), a Widely Distributed Brackish Water Species in the C. lorenzianus Complex

AU - Chen, Zuo Yi

AU - Lundholm, Nina

AU - Moestrup, Øjvind

AU - Kownacka, Janina

AU - Li, Yang

PY - 2018/11/1

Y1 - 2018/11/1

N2 - To understand the diversity of the diatom genus Chaetoceros Ehrenberg, the C. lorenzianus complex was previously chosen as a model and three new species were described. In the present study, yet another new species, Chaetoceros pauciramosus sp. nov., was discovered from Chinese tropical waters and the temperate south-eastern Baltic Sea. In the latter locality it has been known since 2003 and identified as C. cf lorenzianus, and now found to comprise a dominating component of the autumn phytoplankton community. Vegetative cells and resting spores were examined by light and electron microscopy. The LSU and SSU of the nuclear rDNA were sequenced. The characters suggesting that C. pauciramosus belongs to C. lorenzianus complex are: 1) the vegetative cells contain four or more chloroplasts, 2) the cells have stiff setae and form regular straight chains, 3) the terminal setae differ in the direction from the intercalary setae. The relationship was well-supported by molecular phylogenetic analyses inferred from both LSU and SSU markers. The primary valve of the resting spore has two conical elevations, each with dichotomously branching processes, similar to other species in the C. lorenzianus complex. Each process forms a tree-like structure with the pointed distal tips which possess one or two thin spikes, that distinguishes C. pauciramosus from allied taxa. In the phylogenetic trees, Chaetoceros pauciramosus clustered with C. elegans, in agreement with their morphologically similar resting spores.

AB - To understand the diversity of the diatom genus Chaetoceros Ehrenberg, the C. lorenzianus complex was previously chosen as a model and three new species were described. In the present study, yet another new species, Chaetoceros pauciramosus sp. nov., was discovered from Chinese tropical waters and the temperate south-eastern Baltic Sea. In the latter locality it has been known since 2003 and identified as C. cf lorenzianus, and now found to comprise a dominating component of the autumn phytoplankton community. Vegetative cells and resting spores were examined by light and electron microscopy. The LSU and SSU of the nuclear rDNA were sequenced. The characters suggesting that C. pauciramosus belongs to C. lorenzianus complex are: 1) the vegetative cells contain four or more chloroplasts, 2) the cells have stiff setae and form regular straight chains, 3) the terminal setae differ in the direction from the intercalary setae. The relationship was well-supported by molecular phylogenetic analyses inferred from both LSU and SSU markers. The primary valve of the resting spore has two conical elevations, each with dichotomously branching processes, similar to other species in the C. lorenzianus complex. Each process forms a tree-like structure with the pointed distal tips which possess one or two thin spikes, that distinguishes C. pauciramosus from allied taxa. In the phylogenetic trees, Chaetoceros pauciramosus clustered with C. elegans, in agreement with their morphologically similar resting spores.

KW - Chaetoceros

KW - Chaetoceros pauciramosus.

KW - Diversity

KW - molecular phylogeny

KW - morphology

UR - http://www.scopus.com/inward/record.url?scp=85051026764&partnerID=8YFLogxK

U2 - 10.1016/j.protis.2018.06.007

DO - 10.1016/j.protis.2018.06.007

M3 - Journal article

C2 - 30096708

AN - SCOPUS:85051026764

VL - 169

SP - 615

EP - 631

JO - Protist

JF - Protist

SN - 1434-4610

IS - 5

ER -

ID: 202742637