Vertical niche partitioning between cryptic sibling species of a cosmopolitan marine planktonic protist
Abstract A large portion of the surface‐ocean biomass is represented by microscopic unicellular plankton. These organisms are functionally and morphologically diverse, but it remains unclear how their diversity is generated. Species of marine microplankton are widely distributed because of passive t...
Published in: | Molecular Ecology |
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Online Access: | http://dx.doi.org/10.1111/j.1365-294x.2012.05686.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-294X.2012.05686.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1365-294X.2012.05686.x |
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crwiley:10.1111/j.1365-294x.2012.05686.x 2024-06-23T07:56:17+00:00 Vertical niche partitioning between cryptic sibling species of a cosmopolitan marine planktonic protist WEINER, AGNES AURAHS, RALF KURASAWA, ATSUSHI KITAZATO, HIROSHI KUCERA, MICHAL 2012 http://dx.doi.org/10.1111/j.1365-294x.2012.05686.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-294X.2012.05686.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1365-294X.2012.05686.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor http://doi.wiley.com/10.1002/tdm_license_1.1 Molecular Ecology volume 21, issue 16, page 4063-4073 ISSN 0962-1083 1365-294X journal-article 2012 crwiley https://doi.org/10.1111/j.1365-294x.2012.05686.x 2024-06-04T06:41:00Z Abstract A large portion of the surface‐ocean biomass is represented by microscopic unicellular plankton. These organisms are functionally and morphologically diverse, but it remains unclear how their diversity is generated. Species of marine microplankton are widely distributed because of passive transport and lack of barriers in the ocean. How does speciation occur in a system with a seemingly unlimited dispersal potential? Recent studies using planktonic foraminifera as a model showed that even among the cryptic genetic diversity within morphological species, many genetic types are cosmopolitan, lending limited support for speciation by geographical isolation. Here we show that the current two‐dimensional view on the biogeography and potential speciation mechanisms in the microplankton may be misleading. By depth‐stratified sampling, we present evidence that sibling genetic types in a cosmopolitan species of marine microplankton, the planktonic foraminifer Hastigerina pelagica , are consistently separated by depth throughout their global range. Such strong separation between genetically closely related and morphologically inseparable genetic types indicates that niche partitioning in marine heterotrophic microplankton can be maintained in the vertical dimension on a global scale. These observations indicate that speciation along depth (depth‐parapatric speciation) can occur in vertically structured microplankton populations, facilitating diversification without the need for spatial isolation. Article in Journal/Newspaper Planktonic foraminifera Wiley Online Library Molecular Ecology 21 16 4063 4073 |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract A large portion of the surface‐ocean biomass is represented by microscopic unicellular plankton. These organisms are functionally and morphologically diverse, but it remains unclear how their diversity is generated. Species of marine microplankton are widely distributed because of passive transport and lack of barriers in the ocean. How does speciation occur in a system with a seemingly unlimited dispersal potential? Recent studies using planktonic foraminifera as a model showed that even among the cryptic genetic diversity within morphological species, many genetic types are cosmopolitan, lending limited support for speciation by geographical isolation. Here we show that the current two‐dimensional view on the biogeography and potential speciation mechanisms in the microplankton may be misleading. By depth‐stratified sampling, we present evidence that sibling genetic types in a cosmopolitan species of marine microplankton, the planktonic foraminifer Hastigerina pelagica , are consistently separated by depth throughout their global range. Such strong separation between genetically closely related and morphologically inseparable genetic types indicates that niche partitioning in marine heterotrophic microplankton can be maintained in the vertical dimension on a global scale. These observations indicate that speciation along depth (depth‐parapatric speciation) can occur in vertically structured microplankton populations, facilitating diversification without the need for spatial isolation. |
format |
Article in Journal/Newspaper |
author |
WEINER, AGNES AURAHS, RALF KURASAWA, ATSUSHI KITAZATO, HIROSHI KUCERA, MICHAL |
spellingShingle |
WEINER, AGNES AURAHS, RALF KURASAWA, ATSUSHI KITAZATO, HIROSHI KUCERA, MICHAL Vertical niche partitioning between cryptic sibling species of a cosmopolitan marine planktonic protist |
author_facet |
WEINER, AGNES AURAHS, RALF KURASAWA, ATSUSHI KITAZATO, HIROSHI KUCERA, MICHAL |
author_sort |
WEINER, AGNES |
title |
Vertical niche partitioning between cryptic sibling species of a cosmopolitan marine planktonic protist |
title_short |
Vertical niche partitioning between cryptic sibling species of a cosmopolitan marine planktonic protist |
title_full |
Vertical niche partitioning between cryptic sibling species of a cosmopolitan marine planktonic protist |
title_fullStr |
Vertical niche partitioning between cryptic sibling species of a cosmopolitan marine planktonic protist |
title_full_unstemmed |
Vertical niche partitioning between cryptic sibling species of a cosmopolitan marine planktonic protist |
title_sort |
vertical niche partitioning between cryptic sibling species of a cosmopolitan marine planktonic protist |
publisher |
Wiley |
publishDate |
2012 |
url |
http://dx.doi.org/10.1111/j.1365-294x.2012.05686.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-294X.2012.05686.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1365-294X.2012.05686.x |
genre |
Planktonic foraminifera |
genre_facet |
Planktonic foraminifera |
op_source |
Molecular Ecology volume 21, issue 16, page 4063-4073 ISSN 0962-1083 1365-294X |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor http://doi.wiley.com/10.1002/tdm_license_1.1 |
op_doi |
https://doi.org/10.1111/j.1365-294x.2012.05686.x |
container_title |
Molecular Ecology |
container_volume |
21 |
container_issue |
16 |
container_start_page |
4063 |
op_container_end_page |
4073 |
_version_ |
1802649271272472576 |