Tracking biological invasions in space and time: elucidating the invasive history of the green alga Codium fragile using old DNA
ABSTRACT With the advent of ‘ancient DNA’ studies on preserved material of extant and extinct species, museums and herbaria now represent an important although still underutilized resource in molecular ecology. The ability to obtain sequence data from archived specimens can reveal the recent history...
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crwiley:10.1111/j.1472-4642.2007.00420.x 2024-09-15T17:48:37+00:00 Tracking biological invasions in space and time: elucidating the invasive history of the green alga Codium fragile using old DNA Provan, Jim Booth, David Todd, Nicola P. Beatty, Gemma E. Maggs, Christine A. 2007 http://dx.doi.org/10.1111/j.1472-4642.2007.00420.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1472-4642.2007.00420.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1472-4642.2007.00420.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Diversity and Distributions volume 14, issue 2, page 343-354 ISSN 1366-9516 1472-4642 journal-article 2007 crwiley https://doi.org/10.1111/j.1472-4642.2007.00420.x 2024-08-13T04:18:52Z ABSTRACT With the advent of ‘ancient DNA’ studies on preserved material of extant and extinct species, museums and herbaria now represent an important although still underutilized resource in molecular ecology. The ability to obtain sequence data from archived specimens can reveal the recent history of cryptic species and introductions. We have analysed extant and herbarium samples of the highly invasive green alga Codium fragile , many over 100 years old, to identify cryptic accessions of the invasive strain known as C. fragile ssp. tomentosoides , which can be identified by a unique haplotype. Molecular characterization of specimens previously identified as native in various regions shows that the invasive tomentosoides strain has been colonizing new habitats across the world for longer than records indicate, in some cases nearly 100 years before it was noticed. It can now be found in the ranges of all the other native haplotypes detected, several of which correspond to recognized subspecies. Within regions in the southern hemisphere there was a greater diversity of haplotypes than in the northern hemisphere, probably as a result of dispersal by the Antarctic Circumpolar Current. The findings of this study highlight the importance of herbaria in preserving contemporaneous records of invasions as they occur, especially when invasive taxa are cryptic. Article in Journal/Newspaper Antarc* Antarctic Wiley Online Library Diversity and Distributions 14 2 343 354 |
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Open Polar |
collection |
Wiley Online Library |
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crwiley |
language |
English |
description |
ABSTRACT With the advent of ‘ancient DNA’ studies on preserved material of extant and extinct species, museums and herbaria now represent an important although still underutilized resource in molecular ecology. The ability to obtain sequence data from archived specimens can reveal the recent history of cryptic species and introductions. We have analysed extant and herbarium samples of the highly invasive green alga Codium fragile , many over 100 years old, to identify cryptic accessions of the invasive strain known as C. fragile ssp. tomentosoides , which can be identified by a unique haplotype. Molecular characterization of specimens previously identified as native in various regions shows that the invasive tomentosoides strain has been colonizing new habitats across the world for longer than records indicate, in some cases nearly 100 years before it was noticed. It can now be found in the ranges of all the other native haplotypes detected, several of which correspond to recognized subspecies. Within regions in the southern hemisphere there was a greater diversity of haplotypes than in the northern hemisphere, probably as a result of dispersal by the Antarctic Circumpolar Current. The findings of this study highlight the importance of herbaria in preserving contemporaneous records of invasions as they occur, especially when invasive taxa are cryptic. |
format |
Article in Journal/Newspaper |
author |
Provan, Jim Booth, David Todd, Nicola P. Beatty, Gemma E. Maggs, Christine A. |
spellingShingle |
Provan, Jim Booth, David Todd, Nicola P. Beatty, Gemma E. Maggs, Christine A. Tracking biological invasions in space and time: elucidating the invasive history of the green alga Codium fragile using old DNA |
author_facet |
Provan, Jim Booth, David Todd, Nicola P. Beatty, Gemma E. Maggs, Christine A. |
author_sort |
Provan, Jim |
title |
Tracking biological invasions in space and time: elucidating the invasive history of the green alga Codium fragile using old DNA |
title_short |
Tracking biological invasions in space and time: elucidating the invasive history of the green alga Codium fragile using old DNA |
title_full |
Tracking biological invasions in space and time: elucidating the invasive history of the green alga Codium fragile using old DNA |
title_fullStr |
Tracking biological invasions in space and time: elucidating the invasive history of the green alga Codium fragile using old DNA |
title_full_unstemmed |
Tracking biological invasions in space and time: elucidating the invasive history of the green alga Codium fragile using old DNA |
title_sort |
tracking biological invasions in space and time: elucidating the invasive history of the green alga codium fragile using old dna |
publisher |
Wiley |
publishDate |
2007 |
url |
http://dx.doi.org/10.1111/j.1472-4642.2007.00420.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1472-4642.2007.00420.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1472-4642.2007.00420.x |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Diversity and Distributions volume 14, issue 2, page 343-354 ISSN 1366-9516 1472-4642 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1472-4642.2007.00420.x |
container_title |
Diversity and Distributions |
container_volume |
14 |
container_issue |
2 |
container_start_page |
343 |
op_container_end_page |
354 |
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1810290068082917376 |