The enormous repetitive Antarctic krill genome reveals environmental adaptations and population insights
Antarctic krill (Euphausia superba) is Earth’s most abundant wild animal, and its enormous biomass is vital to the Southern Ocean ecosystem. Here, we report a 48.01-Gb chromosome-level Antarctic krill genome, whose large genome size appears to have resulted from inter-genic transposable element expa...
Published in: | Cell |
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Elsevier Inc
2023
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Online Access: | https://doi.org/10.1016/j.cell.2023.02.005 https://researchportal.murdoch.edu.au/esploro/outputs/journalArticle/The-enormous-repetitive-Antarctic-krill-genome/991005599568307891 https://researchportal.murdoch.edu.au/view/delivery/61MUN_INST/12149586010007891/13149586000007891 |
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ftmurdochunivall:oai:alma.61MUN_INST:11149586020007891 2024-09-15T17:45:36+00:00 The enormous repetitive Antarctic krill genome reveals environmental adaptations and population insights Shao, Changwei Sun, Shuai Liu, Kaiqiang Wang, Jiahao Li, Shuo Liu, Qun Deagle, Bruce E. Seim, Inge Biscontin, Alberto Wang, Qian Liu, Xin Kawaguchi, So Liu, Yalin Jarman, Simon Wang, Yue Wang, Hong-Yan Huang, Guodong Hu, Jiang Feng, Bo De Pittà, Cristiano Liu, Shanshan Wang, Rui Ma, Kailong Ying, Yiping Sales, Gabrielle Sun, Tao Wang, Xinliang Zhang, Yaolei Zhao, Yunxia Pan, Shanshan Hao, Xiancai Wang, Yang Xu, Jiakun Yue, Bowen Sun, Yanxu Zhang, He Xu, Mengyang Liu, Yuyan Jia, Xiaodong Zhu, Jiancheng Liu, Shufang Ruan, Jue Zhang, Guojie Yang, Huanming Xu, Xun Wang, Jun Zhao, Xianyong Meyer, Bettina Fan, Guangyi 2023 pdf https://doi.org/10.1016/j.cell.2023.02.005 https://researchportal.murdoch.edu.au/esploro/outputs/journalArticle/The-enormous-repetitive-Antarctic-krill-genome/991005599568307891 https://researchportal.murdoch.edu.au/view/delivery/61MUN_INST/12149586010007891/13149586000007891 eng eng Elsevier Inc ispartof: Cell spage 1279 epage 1294.e19 issue 6 vol 186 doi:10.1016/j.cell.2023.02.005 36868220 WOS:000958684800001 0092-8674 1097-4172 991005599568307891 https://researchportal.murdoch.edu.au/esploro/outputs/journalArticle/The-enormous-repetitive-Antarctic-krill-genome/991005599568307891 https://researchportal.murdoch.edu.au/view/delivery/61MUN_INST/12149586010007891/13149586000007891 alma:61MUN_INST/bibs/991005599568307891 © 2023 The Author(s). Open CC BY-NC-ND V4.0 Antarctic krill (Euphausia superba) chromosome-level genome circadian clock environmental adaptation giant genome size population demography population differentiation repeat expansions text Article 2023 ftmurdochunivall https://doi.org/10.1016/j.cell.2023.02.005 2024-08-15T00:52:50Z Antarctic krill (Euphausia superba) is Earth’s most abundant wild animal, and its enormous biomass is vital to the Southern Ocean ecosystem. Here, we report a 48.01-Gb chromosome-level Antarctic krill genome, whose large genome size appears to have resulted from inter-genic transposable element expansions. Our assembly reveals the molecular architecture of the Antarctic krill circadian clock and uncovers expanded gene families associated with molting and energy metabolism, providing insights into adaptations to the cold and highly seasonal Antarctic environment. Population-level genome re-sequencing from four geographical sites around the Antarctic continent reveals no clear population structure but highlights natural selection associated with environmental variables. An apparent drastic reduction in krill population size 10 mya and a subsequent rebound 100 thousand years ago coincides with climate change events. Our findings uncover the genomic basis of Antarctic krill adaptations to the Southern Ocean and provide valuable resources for future Antarctic research. [Display omitted] •Assembly of the 48.01 Gb chromosome-level Antarctic krill genome•Extensive repeat expansions contributed to the giant Antarctic krill genome•Genetic adaptations to extreme variability of the Antarctic environment•Population analysis reveals no clear geographic differentiation in Antarctic krill The giant and highly repetitive Antarctic krill genome reveals environmental adaptations and population dynamics of Earth’s most abundant wild animal. Article in Journal/Newspaper Antarc* Antarctic Antarctic Krill Euphausia superba Southern Ocean Murdoch University Research Portal Cell 186 6 1279 1294.e19 |
institution |
Open Polar |
collection |
Murdoch University Research Portal |
op_collection_id |
ftmurdochunivall |
language |
English |
topic |
Antarctic krill (Euphausia superba) chromosome-level genome circadian clock environmental adaptation giant genome size population demography population differentiation repeat expansions |
spellingShingle |
Antarctic krill (Euphausia superba) chromosome-level genome circadian clock environmental adaptation giant genome size population demography population differentiation repeat expansions Shao, Changwei Sun, Shuai Liu, Kaiqiang Wang, Jiahao Li, Shuo Liu, Qun Deagle, Bruce E. Seim, Inge Biscontin, Alberto Wang, Qian Liu, Xin Kawaguchi, So Liu, Yalin Jarman, Simon Wang, Yue Wang, Hong-Yan Huang, Guodong Hu, Jiang Feng, Bo De Pittà, Cristiano Liu, Shanshan Wang, Rui Ma, Kailong Ying, Yiping Sales, Gabrielle Sun, Tao Wang, Xinliang Zhang, Yaolei Zhao, Yunxia Pan, Shanshan Hao, Xiancai Wang, Yang Xu, Jiakun Yue, Bowen Sun, Yanxu Zhang, He Xu, Mengyang Liu, Yuyan Jia, Xiaodong Zhu, Jiancheng Liu, Shufang Ruan, Jue Zhang, Guojie Yang, Huanming Xu, Xun Wang, Jun Zhao, Xianyong Meyer, Bettina Fan, Guangyi The enormous repetitive Antarctic krill genome reveals environmental adaptations and population insights |
topic_facet |
Antarctic krill (Euphausia superba) chromosome-level genome circadian clock environmental adaptation giant genome size population demography population differentiation repeat expansions |
description |
Antarctic krill (Euphausia superba) is Earth’s most abundant wild animal, and its enormous biomass is vital to the Southern Ocean ecosystem. Here, we report a 48.01-Gb chromosome-level Antarctic krill genome, whose large genome size appears to have resulted from inter-genic transposable element expansions. Our assembly reveals the molecular architecture of the Antarctic krill circadian clock and uncovers expanded gene families associated with molting and energy metabolism, providing insights into adaptations to the cold and highly seasonal Antarctic environment. Population-level genome re-sequencing from four geographical sites around the Antarctic continent reveals no clear population structure but highlights natural selection associated with environmental variables. An apparent drastic reduction in krill population size 10 mya and a subsequent rebound 100 thousand years ago coincides with climate change events. Our findings uncover the genomic basis of Antarctic krill adaptations to the Southern Ocean and provide valuable resources for future Antarctic research. [Display omitted] •Assembly of the 48.01 Gb chromosome-level Antarctic krill genome•Extensive repeat expansions contributed to the giant Antarctic krill genome•Genetic adaptations to extreme variability of the Antarctic environment•Population analysis reveals no clear geographic differentiation in Antarctic krill The giant and highly repetitive Antarctic krill genome reveals environmental adaptations and population dynamics of Earth’s most abundant wild animal. |
format |
Article in Journal/Newspaper |
author |
Shao, Changwei Sun, Shuai Liu, Kaiqiang Wang, Jiahao Li, Shuo Liu, Qun Deagle, Bruce E. Seim, Inge Biscontin, Alberto Wang, Qian Liu, Xin Kawaguchi, So Liu, Yalin Jarman, Simon Wang, Yue Wang, Hong-Yan Huang, Guodong Hu, Jiang Feng, Bo De Pittà, Cristiano Liu, Shanshan Wang, Rui Ma, Kailong Ying, Yiping Sales, Gabrielle Sun, Tao Wang, Xinliang Zhang, Yaolei Zhao, Yunxia Pan, Shanshan Hao, Xiancai Wang, Yang Xu, Jiakun Yue, Bowen Sun, Yanxu Zhang, He Xu, Mengyang Liu, Yuyan Jia, Xiaodong Zhu, Jiancheng Liu, Shufang Ruan, Jue Zhang, Guojie Yang, Huanming Xu, Xun Wang, Jun Zhao, Xianyong Meyer, Bettina Fan, Guangyi |
author_facet |
Shao, Changwei Sun, Shuai Liu, Kaiqiang Wang, Jiahao Li, Shuo Liu, Qun Deagle, Bruce E. Seim, Inge Biscontin, Alberto Wang, Qian Liu, Xin Kawaguchi, So Liu, Yalin Jarman, Simon Wang, Yue Wang, Hong-Yan Huang, Guodong Hu, Jiang Feng, Bo De Pittà, Cristiano Liu, Shanshan Wang, Rui Ma, Kailong Ying, Yiping Sales, Gabrielle Sun, Tao Wang, Xinliang Zhang, Yaolei Zhao, Yunxia Pan, Shanshan Hao, Xiancai Wang, Yang Xu, Jiakun Yue, Bowen Sun, Yanxu Zhang, He Xu, Mengyang Liu, Yuyan Jia, Xiaodong Zhu, Jiancheng Liu, Shufang Ruan, Jue Zhang, Guojie Yang, Huanming Xu, Xun Wang, Jun Zhao, Xianyong Meyer, Bettina Fan, Guangyi |
author_sort |
Shao, Changwei |
title |
The enormous repetitive Antarctic krill genome reveals environmental adaptations and population insights |
title_short |
The enormous repetitive Antarctic krill genome reveals environmental adaptations and population insights |
title_full |
The enormous repetitive Antarctic krill genome reveals environmental adaptations and population insights |
title_fullStr |
The enormous repetitive Antarctic krill genome reveals environmental adaptations and population insights |
title_full_unstemmed |
The enormous repetitive Antarctic krill genome reveals environmental adaptations and population insights |
title_sort |
enormous repetitive antarctic krill genome reveals environmental adaptations and population insights |
publisher |
Elsevier Inc |
publishDate |
2023 |
url |
https://doi.org/10.1016/j.cell.2023.02.005 https://researchportal.murdoch.edu.au/esploro/outputs/journalArticle/The-enormous-repetitive-Antarctic-krill-genome/991005599568307891 https://researchportal.murdoch.edu.au/view/delivery/61MUN_INST/12149586010007891/13149586000007891 |
genre |
Antarc* Antarctic Antarctic Krill Euphausia superba Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctic Krill Euphausia superba Southern Ocean |
op_relation |
ispartof: Cell spage 1279 epage 1294.e19 issue 6 vol 186 doi:10.1016/j.cell.2023.02.005 36868220 WOS:000958684800001 0092-8674 1097-4172 991005599568307891 https://researchportal.murdoch.edu.au/esploro/outputs/journalArticle/The-enormous-repetitive-Antarctic-krill-genome/991005599568307891 https://researchportal.murdoch.edu.au/view/delivery/61MUN_INST/12149586010007891/13149586000007891 alma:61MUN_INST/bibs/991005599568307891 |
op_rights |
© 2023 The Author(s). Open CC BY-NC-ND V4.0 |
op_doi |
https://doi.org/10.1016/j.cell.2023.02.005 |
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Cell |
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186 |
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6 |
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1279 |
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1294.e19 |
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1810493497435750400 |