Ancient DNA Resolves the History of Tetragnatha (Araneae, Tetragnathidae) Spiders on Rapa Nui.
Rapa Nui is one of the most remote islands in the world. As a young island, its biota is a consequence of both natural dispersals over the last ~1 million years and recent human introductions. It therefore provides an opportunity to study a unique community assemblage. Here, we extract DNA from muse...
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ftcdlib:oai:escholarship.org/ark:/13030/qt99q0g0h2 2023-05-15T18:45:48+02:00 Ancient DNA Resolves the History of Tetragnatha (Araneae, Tetragnathidae) Spiders on Rapa Nui. Cotoras, Darko D Murray, Gemma GR Kapp, Joshua Gillespie, Rosemary G Griswold, Charles Simison, W Brian Green, Richard E Shapiro, Beth 403 - 403 2017-12-20 application/pdf https://escholarship.org/uc/item/99q0g0h2 unknown eScholarship, University of California qt99q0g0h2 https://escholarship.org/uc/item/99q0g0h2 public Genes, vol 8, iss 12 Rapa Nui Tetragnatha ancient DNA arachnid museum Genetics article 2017 ftcdlib 2021-06-28T17:07:39Z Rapa Nui is one of the most remote islands in the world. As a young island, its biota is a consequence of both natural dispersals over the last ~1 million years and recent human introductions. It therefore provides an opportunity to study a unique community assemblage. Here, we extract DNA from museum-preserved and newly field-collected spiders from the genus Tetragnatha to explore their history on Rapa Nui. Using an optimized protocol to recover ancient DNA from museum-preserved spiders, we sequence and assemble partial mitochondrial genomes from nine Tetragnatha species, two of which were found on Rapa Nui, and estimate the evolutionary relationships between these and other Tetragnatha species. Our phylogeny shows that the two Rapa Nui species are not closely related. One, the possibly extinct, T. paschae, is nested within a circumtropical species complex (T. nitens), and the other (Tetragnatha sp. Rapa Nui) appears to be a recent human introduction. Our results highlight the power of ancient DNA approaches in identifying cryptic and rare species, which can contribute to our understanding of the global distribution of biodiversity in all taxonomic lineages. Article in Journal/Newspaper Young Island University of California: eScholarship Rapa ENVELOPE(15.539,15.539,69.033,69.033) Rapa Nui ENVELOPE(-60.800,-60.800,-62.450,-62.450) Young Island ENVELOPE(162.400,162.400,-66.417,-66.417) |
institution |
Open Polar |
collection |
University of California: eScholarship |
op_collection_id |
ftcdlib |
language |
unknown |
topic |
Rapa Nui Tetragnatha ancient DNA arachnid museum Genetics |
spellingShingle |
Rapa Nui Tetragnatha ancient DNA arachnid museum Genetics Cotoras, Darko D Murray, Gemma GR Kapp, Joshua Gillespie, Rosemary G Griswold, Charles Simison, W Brian Green, Richard E Shapiro, Beth Ancient DNA Resolves the History of Tetragnatha (Araneae, Tetragnathidae) Spiders on Rapa Nui. |
topic_facet |
Rapa Nui Tetragnatha ancient DNA arachnid museum Genetics |
description |
Rapa Nui is one of the most remote islands in the world. As a young island, its biota is a consequence of both natural dispersals over the last ~1 million years and recent human introductions. It therefore provides an opportunity to study a unique community assemblage. Here, we extract DNA from museum-preserved and newly field-collected spiders from the genus Tetragnatha to explore their history on Rapa Nui. Using an optimized protocol to recover ancient DNA from museum-preserved spiders, we sequence and assemble partial mitochondrial genomes from nine Tetragnatha species, two of which were found on Rapa Nui, and estimate the evolutionary relationships between these and other Tetragnatha species. Our phylogeny shows that the two Rapa Nui species are not closely related. One, the possibly extinct, T. paschae, is nested within a circumtropical species complex (T. nitens), and the other (Tetragnatha sp. Rapa Nui) appears to be a recent human introduction. Our results highlight the power of ancient DNA approaches in identifying cryptic and rare species, which can contribute to our understanding of the global distribution of biodiversity in all taxonomic lineages. |
format |
Article in Journal/Newspaper |
author |
Cotoras, Darko D Murray, Gemma GR Kapp, Joshua Gillespie, Rosemary G Griswold, Charles Simison, W Brian Green, Richard E Shapiro, Beth |
author_facet |
Cotoras, Darko D Murray, Gemma GR Kapp, Joshua Gillespie, Rosemary G Griswold, Charles Simison, W Brian Green, Richard E Shapiro, Beth |
author_sort |
Cotoras, Darko D |
title |
Ancient DNA Resolves the History of Tetragnatha (Araneae, Tetragnathidae) Spiders on Rapa Nui. |
title_short |
Ancient DNA Resolves the History of Tetragnatha (Araneae, Tetragnathidae) Spiders on Rapa Nui. |
title_full |
Ancient DNA Resolves the History of Tetragnatha (Araneae, Tetragnathidae) Spiders on Rapa Nui. |
title_fullStr |
Ancient DNA Resolves the History of Tetragnatha (Araneae, Tetragnathidae) Spiders on Rapa Nui. |
title_full_unstemmed |
Ancient DNA Resolves the History of Tetragnatha (Araneae, Tetragnathidae) Spiders on Rapa Nui. |
title_sort |
ancient dna resolves the history of tetragnatha (araneae, tetragnathidae) spiders on rapa nui. |
publisher |
eScholarship, University of California |
publishDate |
2017 |
url |
https://escholarship.org/uc/item/99q0g0h2 |
op_coverage |
403 - 403 |
long_lat |
ENVELOPE(15.539,15.539,69.033,69.033) ENVELOPE(-60.800,-60.800,-62.450,-62.450) ENVELOPE(162.400,162.400,-66.417,-66.417) |
geographic |
Rapa Rapa Nui Young Island |
geographic_facet |
Rapa Rapa Nui Young Island |
genre |
Young Island |
genre_facet |
Young Island |
op_source |
Genes, vol 8, iss 12 |
op_relation |
qt99q0g0h2 https://escholarship.org/uc/item/99q0g0h2 |
op_rights |
public |
_version_ |
1766236962818097152 |