Compact genome of the Antarctic midge is likely an adaptation to an extreme environment
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 a...
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ftmiamiunivohio:oai:dspace.lib.miamioh.edu:2374.MIA/5918 2023-05-15T14:00:06+02:00 Compact genome of the Antarctic midge is likely an adaptation to an extreme environment Kelley, Joanna L. Peyton, Justin T. Fiston-Lavier, Anna-Sophie Teets, Nicholas M. Muh-Ching, Yee Johnston, J. Spencer Bustamante, Carlos D. Lee, Richard E. Denlinger, David L. 2016-04-19T17:55:28Z http://hdl.handle.net/2374.MIA/5918 unknown Kelley, J. L., Peyton, J. T., Fiston-Lavier, A. S., Teets, N. M., Yee, M. C., Johnston, J. S., . & Denlinger, D. L. (2014). Compact genome of the Antarctic midge is likely an adaptation to an extreme environment. Nature communications, 5. http://hdl.handle.net/2374.MIA/5918 2016 ftmiamiunivohio 2019-12-15T10:17:00Z 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. Other/Unknown Material Antarc* Antarctic Antarctic midge Antarctica Belgica antarctica Scholarly Commons @ MiamiOH (Miami University) Antarctic The Antarctic |
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Scholarly Commons @ MiamiOH (Miami University) |
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ftmiamiunivohio |
language |
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description |
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. |
author |
Kelley, Joanna L. Peyton, Justin T. Fiston-Lavier, Anna-Sophie Teets, Nicholas M. Muh-Ching, Yee Johnston, J. Spencer Bustamante, Carlos D. Lee, Richard E. Denlinger, David L. |
spellingShingle |
Kelley, Joanna L. Peyton, Justin T. Fiston-Lavier, Anna-Sophie Teets, Nicholas M. Muh-Ching, Yee Johnston, J. Spencer Bustamante, Carlos D. Lee, Richard E. Denlinger, David L. Compact genome of the Antarctic midge is likely an adaptation to an extreme environment |
author_facet |
Kelley, Joanna L. Peyton, Justin T. Fiston-Lavier, Anna-Sophie Teets, Nicholas M. Muh-Ching, Yee Johnston, J. Spencer Bustamante, Carlos D. Lee, Richard E. Denlinger, David L. |
author_sort |
Kelley, Joanna L. |
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 |
publishDate |
2016 |
url |
http://hdl.handle.net/2374.MIA/5918 |
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_relation |
Kelley, J. L., Peyton, J. T., Fiston-Lavier, A. S., Teets, N. M., Yee, M. C., Johnston, J. S., . & Denlinger, D. L. (2014). Compact genome of the Antarctic midge is likely an adaptation to an extreme environment. Nature communications, 5. http://hdl.handle.net/2374.MIA/5918 |
_version_ |
1766269095973486592 |