Geographical distribution of cryptic genetic types in the planktonic foraminifer Globigerinoides ruber
Abstract We present SSU rDNA data resolving the seasonal and geographical distribution of ‘cryptic’ genetic types of the planktonic foraminifer morphospecies Globigerinoides ruber in the eastern Atlantic Ocean and the Mediterranean Sea. Analysis of 262 sequences revealed the presence of five genetic...
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crwiley:10.1111/j.1365-294x.2009.04136.x 2024-09-15T18:31:02+00:00 Geographical distribution of cryptic genetic types in the planktonic foraminifer Globigerinoides ruber AURAHS, RALF GRIMM, GUIDO W. HEMLEBEN, VERA HEMLEBEN, CHRISTOPH KUCERA, MICHAL 2009 http://dx.doi.org/10.1111/j.1365-294x.2009.04136.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-294X.2009.04136.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1365-294X.2009.04136.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Molecular Ecology volume 18, issue 8, page 1692-1706 ISSN 0962-1083 1365-294X journal-article 2009 crwiley https://doi.org/10.1111/j.1365-294x.2009.04136.x 2024-08-09T04:32:06Z Abstract We present SSU rDNA data resolving the seasonal and geographical distribution of ‘cryptic’ genetic types of the planktonic foraminifer morphospecies Globigerinoides ruber in the eastern Atlantic Ocean and the Mediterranean Sea. Analysis of 262 sequences revealed the presence of five genetic types belonging to two distinct lineages. Although the morphospecies G. ruber occurs throughout the investigated region, its constituent ‘cryptic’ genetic types show a pattern of widespread exclusion, which is difficult to reconcile with the concept of ubiquitous dispersal. One of the newly discovered genetic types was exclusively found at stations in the Mediterranean Sea, possibly representing the smallest‐scale example of endemism known in planktonic foraminifera. In general, our results suggest that the geographical scale of mutual exclusion between the genotypes is negatively correlated with their phylogenetic relatedness: the most similar and most recently diverged pair of siblings showed the strongest evidence for small‐scale competitive exclusion. This pattern is consistent with the concept of niche partitioning, implying decreasing level of competition between genetic types with increasing degree of genetic divergence. Article in Journal/Newspaper Planktonic foraminifera Wiley Online Library Molecular Ecology 18 8 1692 1706 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract We present SSU rDNA data resolving the seasonal and geographical distribution of ‘cryptic’ genetic types of the planktonic foraminifer morphospecies Globigerinoides ruber in the eastern Atlantic Ocean and the Mediterranean Sea. Analysis of 262 sequences revealed the presence of five genetic types belonging to two distinct lineages. Although the morphospecies G. ruber occurs throughout the investigated region, its constituent ‘cryptic’ genetic types show a pattern of widespread exclusion, which is difficult to reconcile with the concept of ubiquitous dispersal. One of the newly discovered genetic types was exclusively found at stations in the Mediterranean Sea, possibly representing the smallest‐scale example of endemism known in planktonic foraminifera. In general, our results suggest that the geographical scale of mutual exclusion between the genotypes is negatively correlated with their phylogenetic relatedness: the most similar and most recently diverged pair of siblings showed the strongest evidence for small‐scale competitive exclusion. This pattern is consistent with the concept of niche partitioning, implying decreasing level of competition between genetic types with increasing degree of genetic divergence. |
format |
Article in Journal/Newspaper |
author |
AURAHS, RALF GRIMM, GUIDO W. HEMLEBEN, VERA HEMLEBEN, CHRISTOPH KUCERA, MICHAL |
spellingShingle |
AURAHS, RALF GRIMM, GUIDO W. HEMLEBEN, VERA HEMLEBEN, CHRISTOPH KUCERA, MICHAL Geographical distribution of cryptic genetic types in the planktonic foraminifer Globigerinoides ruber |
author_facet |
AURAHS, RALF GRIMM, GUIDO W. HEMLEBEN, VERA HEMLEBEN, CHRISTOPH KUCERA, MICHAL |
author_sort |
AURAHS, RALF |
title |
Geographical distribution of cryptic genetic types in the planktonic foraminifer Globigerinoides ruber |
title_short |
Geographical distribution of cryptic genetic types in the planktonic foraminifer Globigerinoides ruber |
title_full |
Geographical distribution of cryptic genetic types in the planktonic foraminifer Globigerinoides ruber |
title_fullStr |
Geographical distribution of cryptic genetic types in the planktonic foraminifer Globigerinoides ruber |
title_full_unstemmed |
Geographical distribution of cryptic genetic types in the planktonic foraminifer Globigerinoides ruber |
title_sort |
geographical distribution of cryptic genetic types in the planktonic foraminifer globigerinoides ruber |
publisher |
Wiley |
publishDate |
2009 |
url |
http://dx.doi.org/10.1111/j.1365-294x.2009.04136.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-294X.2009.04136.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1365-294X.2009.04136.x |
genre |
Planktonic foraminifera |
genre_facet |
Planktonic foraminifera |
op_source |
Molecular Ecology volume 18, issue 8, page 1692-1706 ISSN 0962-1083 1365-294X |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1365-294x.2009.04136.x |
container_title |
Molecular Ecology |
container_volume |
18 |
container_issue |
8 |
container_start_page |
1692 |
op_container_end_page |
1706 |
_version_ |
1810472620518277120 |