Data from: The cryptic and the apparent reversed: lack of genetic differentiation within the morphologically diverse plexus of the planktonic foraminifer Globigerinoides sacculifer
Previous genetic studies of extant planktonic foraminifera have provided evidence that the traditional, strictly morphological definition of species in these organisms underestimates their biodiversity. Here, we report the first case where this pattern is reversed. The modern (sub)tropical species p...
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Dryad Digital Repository
2012
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Online Access: | https://doi.org/10.5061/dryad.rb06j |
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fttriple:oai:gotriple.eu:50|dedup_wf_001::9295f440dc15cf6de1b1ac8d888c9a7e 2023-05-15T18:00:26+02:00 Data from: The cryptic and the apparent reversed: lack of genetic differentiation within the morphologically diverse plexus of the planktonic foraminifer Globigerinoides sacculifer Quillevere, Frederic André, Aurore Weiner, Agnes Aurahs, Ralf Morard, Raphaël Douady, Christophe J. de Garidel-Thoron, Thibault Escarguel, Gilles de Vargas, Colomban Kucera, Michal 2012-01-01 https://doi.org/10.5061/dryad.rb06j undefined unknown Dryad Digital Repository https://dx.doi.org/10.5061/dryad.rb06j http://dx.doi.org/10.5061/dryad.rb06j lic_creative-commons 10.5061/dryad.rb06j oai:easy.dans.knaw.nl:easy-dataset:81534 oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:81534 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 re3data_____::r3d100000044 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 gene flow species concept Planktonic foraminifera ribosomal DNA Globigerinoides sacculifer Life sciences medicine and health care envir geo Dataset https://vocabularies.coar-repositories.org/resource_types/c_ddb1/ 2012 fttriple https://doi.org/10.5061/dryad.rb06j 2023-01-22T16:52:46Z Previous genetic studies of extant planktonic foraminifera have provided evidence that the traditional, strictly morphological definition of species in these organisms underestimates their biodiversity. Here, we report the first case where this pattern is reversed. The modern (sub)tropical species plexus Globigerinoides sacculifer is characterized by large morphological variability, which has led to the proliferation of taxonomic names attributed to morphological end-members within the plexus. In order to clarify the taxonomic status of its morphotypes and to investigate the genetic connectivity among its currently partly disjunct (sub)tropical populations, we carried out a global survey of two ribosomal RNA regions (SSU and ITS-1) in all recent morphotypes of the plexus collected throughout (sub)tropical surface waters of the global ocean. Unexpectedly, we find an extremely reduced genetic variation within the plexus and no correlation between genetic and morphological divergence, suggesting taxonomical overinterpretation. The genetic homogeneity within the morphospecies is unexpected, considering its partly disjunct range in the (sub)tropical Atlantic and Indo-Pacific and its old age (early Miocene). A sequence variant in the rapidly evolving ITS-1 region indicates the existence of an exclusively Atlantic haplotype, which suggests an episode of relatively recent (last glacial) isolation, followed by subsequent resumption of unidirectional gene flow from the Indo-Pacific into the Atlantic. This is the first example in planktonic foraminifera where the morphological variability in a morphospecies exceeds its rDNA genetic variability. Such evidence for inconsistent scaling of morphological and genetic diversity in planktonic foraminifera could complicate the interpretation of evolutionary patterns in their fossil record. Supplement Table1_ANDRE ET AL_2013Supplementary information on individuals of the Globigerinoides sacculifer plexus sequenced in the work by André et al. (2013) Dataset Planktonic foraminifera Unknown Pacific |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
unknown |
topic |
gene flow species concept Planktonic foraminifera ribosomal DNA Globigerinoides sacculifer Life sciences medicine and health care envir geo |
spellingShingle |
gene flow species concept Planktonic foraminifera ribosomal DNA Globigerinoides sacculifer Life sciences medicine and health care envir geo Quillevere, Frederic André, Aurore Weiner, Agnes Aurahs, Ralf Morard, Raphaël Douady, Christophe J. de Garidel-Thoron, Thibault Escarguel, Gilles de Vargas, Colomban Kucera, Michal Data from: The cryptic and the apparent reversed: lack of genetic differentiation within the morphologically diverse plexus of the planktonic foraminifer Globigerinoides sacculifer |
topic_facet |
gene flow species concept Planktonic foraminifera ribosomal DNA Globigerinoides sacculifer Life sciences medicine and health care envir geo |
description |
Previous genetic studies of extant planktonic foraminifera have provided evidence that the traditional, strictly morphological definition of species in these organisms underestimates their biodiversity. Here, we report the first case where this pattern is reversed. The modern (sub)tropical species plexus Globigerinoides sacculifer is characterized by large morphological variability, which has led to the proliferation of taxonomic names attributed to morphological end-members within the plexus. In order to clarify the taxonomic status of its morphotypes and to investigate the genetic connectivity among its currently partly disjunct (sub)tropical populations, we carried out a global survey of two ribosomal RNA regions (SSU and ITS-1) in all recent morphotypes of the plexus collected throughout (sub)tropical surface waters of the global ocean. Unexpectedly, we find an extremely reduced genetic variation within the plexus and no correlation between genetic and morphological divergence, suggesting taxonomical overinterpretation. The genetic homogeneity within the morphospecies is unexpected, considering its partly disjunct range in the (sub)tropical Atlantic and Indo-Pacific and its old age (early Miocene). A sequence variant in the rapidly evolving ITS-1 region indicates the existence of an exclusively Atlantic haplotype, which suggests an episode of relatively recent (last glacial) isolation, followed by subsequent resumption of unidirectional gene flow from the Indo-Pacific into the Atlantic. This is the first example in planktonic foraminifera where the morphological variability in a morphospecies exceeds its rDNA genetic variability. Such evidence for inconsistent scaling of morphological and genetic diversity in planktonic foraminifera could complicate the interpretation of evolutionary patterns in their fossil record. Supplement Table1_ANDRE ET AL_2013Supplementary information on individuals of the Globigerinoides sacculifer plexus sequenced in the work by André et al. (2013) |
format |
Dataset |
author |
Quillevere, Frederic André, Aurore Weiner, Agnes Aurahs, Ralf Morard, Raphaël Douady, Christophe J. de Garidel-Thoron, Thibault Escarguel, Gilles de Vargas, Colomban Kucera, Michal |
author_facet |
Quillevere, Frederic André, Aurore Weiner, Agnes Aurahs, Ralf Morard, Raphaël Douady, Christophe J. de Garidel-Thoron, Thibault Escarguel, Gilles de Vargas, Colomban Kucera, Michal |
author_sort |
Quillevere, Frederic |
title |
Data from: The cryptic and the apparent reversed: lack of genetic differentiation within the morphologically diverse plexus of the planktonic foraminifer Globigerinoides sacculifer |
title_short |
Data from: The cryptic and the apparent reversed: lack of genetic differentiation within the morphologically diverse plexus of the planktonic foraminifer Globigerinoides sacculifer |
title_full |
Data from: The cryptic and the apparent reversed: lack of genetic differentiation within the morphologically diverse plexus of the planktonic foraminifer Globigerinoides sacculifer |
title_fullStr |
Data from: The cryptic and the apparent reversed: lack of genetic differentiation within the morphologically diverse plexus of the planktonic foraminifer Globigerinoides sacculifer |
title_full_unstemmed |
Data from: The cryptic and the apparent reversed: lack of genetic differentiation within the morphologically diverse plexus of the planktonic foraminifer Globigerinoides sacculifer |
title_sort |
data from: the cryptic and the apparent reversed: lack of genetic differentiation within the morphologically diverse plexus of the planktonic foraminifer globigerinoides sacculifer |
publisher |
Dryad Digital Repository |
publishDate |
2012 |
url |
https://doi.org/10.5061/dryad.rb06j |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Planktonic foraminifera |
genre_facet |
Planktonic foraminifera |
op_source |
10.5061/dryad.rb06j oai:easy.dans.knaw.nl:easy-dataset:81534 oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:81534 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 re3data_____::r3d100000044 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 |
op_relation |
https://dx.doi.org/10.5061/dryad.rb06j http://dx.doi.org/10.5061/dryad.rb06j |
op_rights |
lic_creative-commons |
op_doi |
https://doi.org/10.5061/dryad.rb06j |
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1766169529841352704 |