Compact genome of the Antarctic midge is likely an adaptation to an extreme environment
International audience The midge, Belgica antarctica, is the only insect endemic to Antarctica, and thus it offers a powerful model for probing responses to extreme temperatures, freeze tolerance, dehydration, osmotic stress, ultraviolet radiation and other forms of environmental stress. Here we pre...
Published in: | Nature Communications |
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Online Access: | https://hal.umontpellier.fr/hal-03025771 https://hal.umontpellier.fr/hal-03025771/document https://hal.umontpellier.fr/hal-03025771/file/ncomms5611.pdf https://doi.org/10.1038/ncomms5611 |
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ftunivnantes:oai:HAL:hal-03025771v1 2023-05-15T13:44:30+02:00 Compact genome of the Antarctic midge is likely an adaptation to an extreme environment Kelley, Joanna Peyton, Justin Fiston-Lavier, Anna-Sophie Teets, Nicholas Yee, Muh-Ching Johnston, J. Spencer Bustamante, Carlos Lee, Richard Denlinger, David Department of Genetics Stanford Stanford Medicine Stanford University-Stanford University School of Biological Sciences Washington State University (WSU) Ohio State University Columbus (OSU) Stanford University Institut des Sciences de l'Evolution de Montpellier (UMR ISEM) Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-École pratique des hautes études (EPHE) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Montpellier (UM)-Institut de recherche pour le développement IRD : UR226-Centre National de la Recherche Scientifique (CNRS) University of Florida Gainesville (UF) Department of Plant Biology Carnegie (DPB) Carnegie Institution for Science Texas A&M University College Station Miami University Ohio (MU) 2014 https://hal.umontpellier.fr/hal-03025771 https://hal.umontpellier.fr/hal-03025771/document https://hal.umontpellier.fr/hal-03025771/file/ncomms5611.pdf https://doi.org/10.1038/ncomms5611 en eng HAL CCSD Nature Publishing Group info:eu-repo/semantics/altIdentifier/doi/10.1038/ncomms5611 hal-03025771 https://hal.umontpellier.fr/hal-03025771 https://hal.umontpellier.fr/hal-03025771/document https://hal.umontpellier.fr/hal-03025771/file/ncomms5611.pdf doi:10.1038/ncomms5611 http://creativecommons.org/licenses/by-nc-sa/ info:eu-repo/semantics/OpenAccess CC-BY-NC-SA ISSN: 2041-1723 EISSN: 2041-1723 Nature Communications https://hal.umontpellier.fr/hal-03025771 Nature Communications, 2014, 5, pp.4611. ⟨10.1038/ncomms5611⟩ [SDV.GEN.GA]Life Sciences [q-bio]/Genetics/Animal genetics [SDV.BA.ZI]Life Sciences [q-bio]/Animal biology/Invertebrate Zoology info:eu-repo/semantics/article Journal articles 2014 ftunivnantes https://doi.org/10.1038/ncomms5611 2023-02-01T00:35:22Z International audience The midge, Belgica antarctica, is the only insect endemic to Antarctica, and thus it offers a powerful model for probing responses to extreme temperatures, freeze tolerance, dehydration, osmotic stress, ultraviolet radiation and other forms of environmental stress. Here we present the first genome assembly of an extremophile, the first dipteran in the family Chironomidae, and the first Antarctic eukaryote to be sequenced. At 99 megabases, B. antarctica has the smallest insect genome sequenced thus far. Although it has a similar number of genes as other Diptera, the midge genome has very low repeat density and a reduction in intron length. Environmental extremes appear to constrain genome architecture, not gene content. The few transposable elements present are mainly ancient, inactive retroelements. An abundance of genes associated with development, regulation of metabolism and responses to external stimuli may reflect adaptations for surviving in this harsh environment. Article in Journal/Newspaper Antarc* Antarctic Antarctic midge Antarctica Belgica antarctica Université de Nantes: HAL-UNIV-NANTES Antarctic The Antarctic Nature Communications 5 1 |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
[SDV.GEN.GA]Life Sciences [q-bio]/Genetics/Animal genetics [SDV.BA.ZI]Life Sciences [q-bio]/Animal biology/Invertebrate Zoology |
spellingShingle |
[SDV.GEN.GA]Life Sciences [q-bio]/Genetics/Animal genetics [SDV.BA.ZI]Life Sciences [q-bio]/Animal biology/Invertebrate Zoology Kelley, Joanna Peyton, Justin Fiston-Lavier, Anna-Sophie Teets, Nicholas Yee, Muh-Ching Johnston, J. Spencer Bustamante, Carlos Lee, Richard Denlinger, David Compact genome of the Antarctic midge is likely an adaptation to an extreme environment |
topic_facet |
[SDV.GEN.GA]Life Sciences [q-bio]/Genetics/Animal genetics [SDV.BA.ZI]Life Sciences [q-bio]/Animal biology/Invertebrate Zoology |
description |
International audience The midge, Belgica antarctica, is the only insect endemic to Antarctica, and thus it offers a powerful model for probing responses to extreme temperatures, freeze tolerance, dehydration, osmotic stress, ultraviolet radiation and other forms of environmental stress. Here we present the first genome assembly of an extremophile, the first dipteran in the family Chironomidae, and the first Antarctic eukaryote to be sequenced. At 99 megabases, B. antarctica has the smallest insect genome sequenced thus far. Although it has a similar number of genes as other Diptera, the midge genome has very low repeat density and a reduction in intron length. Environmental extremes appear to constrain genome architecture, not gene content. The few transposable elements present are mainly ancient, inactive retroelements. An abundance of genes associated with development, regulation of metabolism and responses to external stimuli may reflect adaptations for surviving in this harsh environment. |
author2 |
Department of Genetics Stanford Stanford Medicine Stanford University-Stanford University School of Biological Sciences Washington State University (WSU) Ohio State University Columbus (OSU) Stanford University Institut des Sciences de l'Evolution de Montpellier (UMR ISEM) Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-École pratique des hautes études (EPHE) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Montpellier (UM)-Institut de recherche pour le développement IRD : UR226-Centre National de la Recherche Scientifique (CNRS) University of Florida Gainesville (UF) Department of Plant Biology Carnegie (DPB) Carnegie Institution for Science Texas A&M University College Station Miami University Ohio (MU) |
format |
Article in Journal/Newspaper |
author |
Kelley, Joanna Peyton, Justin Fiston-Lavier, Anna-Sophie Teets, Nicholas Yee, Muh-Ching Johnston, J. Spencer Bustamante, Carlos Lee, Richard Denlinger, David |
author_facet |
Kelley, Joanna Peyton, Justin Fiston-Lavier, Anna-Sophie Teets, Nicholas Yee, Muh-Ching Johnston, J. Spencer Bustamante, Carlos Lee, Richard Denlinger, David |
author_sort |
Kelley, Joanna |
title |
Compact genome of the Antarctic midge is likely an adaptation to an extreme environment |
title_short |
Compact genome of the Antarctic midge is likely an adaptation to an extreme environment |
title_full |
Compact genome of the Antarctic midge is likely an adaptation to an extreme environment |
title_fullStr |
Compact genome of the Antarctic midge is likely an adaptation to an extreme environment |
title_full_unstemmed |
Compact genome of the Antarctic midge is likely an adaptation to an extreme environment |
title_sort |
compact genome of the antarctic midge is likely an adaptation to an extreme environment |
publisher |
HAL CCSD |
publishDate |
2014 |
url |
https://hal.umontpellier.fr/hal-03025771 https://hal.umontpellier.fr/hal-03025771/document https://hal.umontpellier.fr/hal-03025771/file/ncomms5611.pdf https://doi.org/10.1038/ncomms5611 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic Antarctic midge Antarctica Belgica antarctica |
genre_facet |
Antarc* Antarctic Antarctic midge Antarctica Belgica antarctica |
op_source |
ISSN: 2041-1723 EISSN: 2041-1723 Nature Communications https://hal.umontpellier.fr/hal-03025771 Nature Communications, 2014, 5, pp.4611. ⟨10.1038/ncomms5611⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1038/ncomms5611 hal-03025771 https://hal.umontpellier.fr/hal-03025771 https://hal.umontpellier.fr/hal-03025771/document https://hal.umontpellier.fr/hal-03025771/file/ncomms5611.pdf doi:10.1038/ncomms5611 |
op_rights |
http://creativecommons.org/licenses/by-nc-sa/ info:eu-repo/semantics/OpenAccess |
op_rightsnorm |
CC-BY-NC-SA |
op_doi |
https://doi.org/10.1038/ncomms5611 |
container_title |
Nature Communications |
container_volume |
5 |
container_issue |
1 |
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1766202556071018496 |