Signatures of the Evolution of Parthenogenesis and Cryptobiosis in the Genomes of Panagrolaimid Nematodes
Most animal species reproduce sexually and fully parthenogenetic lineages are usually short lived in evolution. Still, parthenogenesis may be advantageous as it avoids the cost of sex and permits colonization by single individuals. Panagrolaimid nematodes have colonized environments ranging from ari...
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ftucl:oai:eprints.ucl.ac.uk.OAI2:10086607 2023-12-24T10:11:21+01:00 Signatures of the Evolution of Parthenogenesis and Cryptobiosis in the Genomes of Panagrolaimid Nematodes Schiffer, PH Danchin, EGJ Burnell, AM Creevey, CJ Wong, S Dix, I O'Mahony, G Culleton, BA Rancurel, C Stier, G Martínez-Salazar, EA Marconi, A Trivedi, U Kroiher, M Thorne, MAS Schierenberg, E Wiehe, T Blaxter, M 2019-11-22 text https://discovery.ucl.ac.uk/id/eprint/10086607/1/Schiffer_Signatures%20of%20the%20Evolution%20of%20Parthenogenesis%20and%20Cryptobiosis%20in%20the%20Genomes%20of%20Panagrolaimid%20Nematodes_VoR.pdf https://discovery.ucl.ac.uk/id/eprint/10086607/ eng eng https://discovery.ucl.ac.uk/id/eprint/10086607/1/Schiffer_Signatures%20of%20the%20Evolution%20of%20Parthenogenesis%20and%20Cryptobiosis%20in%20the%20Genomes%20of%20Panagrolaimid%20Nematodes_VoR.pdf https://discovery.ucl.ac.uk/id/eprint/10086607/ open iScience , 21 pp. 587-602. (2019) Evolutionary Biology Phylogenetics Transcriptomics Article 2019 ftucl 2023-11-27T13:07:39Z Most animal species reproduce sexually and fully parthenogenetic lineages are usually short lived in evolution. Still, parthenogenesis may be advantageous as it avoids the cost of sex and permits colonization by single individuals. Panagrolaimid nematodes have colonized environments ranging from arid deserts to Arctic and Antarctic biomes. Many are obligatory meiotic parthenogens, and most have cryptobiotic abilities, being able to survive repeated cycles of complete desiccation and freezing. To identify systems that may contribute to these striking abilities, we sequenced and compared the genomes and transcriptomes of parthenogenetic and outcrossing panagrolaimid species, including cryptobionts and non-cryptobionts. The parthenogens are triploids, most likely originating through hybridization. Adaptation to cryptobiosis shaped the genomes of panagrolaimid nematodes and is associated with the expansion of gene families and signatures of selection on genes involved in cryptobiosis. All panagrolaimids have acquired genes through horizontal gene transfer, some of which are likely to contribute to cryptobiosis. Article in Journal/Newspaper Antarc* Antarctic Arctic University College London: UCL Discovery Arctic Antarctic |
institution |
Open Polar |
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University College London: UCL Discovery |
op_collection_id |
ftucl |
language |
English |
topic |
Evolutionary Biology Phylogenetics Transcriptomics |
spellingShingle |
Evolutionary Biology Phylogenetics Transcriptomics Schiffer, PH Danchin, EGJ Burnell, AM Creevey, CJ Wong, S Dix, I O'Mahony, G Culleton, BA Rancurel, C Stier, G Martínez-Salazar, EA Marconi, A Trivedi, U Kroiher, M Thorne, MAS Schierenberg, E Wiehe, T Blaxter, M Signatures of the Evolution of Parthenogenesis and Cryptobiosis in the Genomes of Panagrolaimid Nematodes |
topic_facet |
Evolutionary Biology Phylogenetics Transcriptomics |
description |
Most animal species reproduce sexually and fully parthenogenetic lineages are usually short lived in evolution. Still, parthenogenesis may be advantageous as it avoids the cost of sex and permits colonization by single individuals. Panagrolaimid nematodes have colonized environments ranging from arid deserts to Arctic and Antarctic biomes. Many are obligatory meiotic parthenogens, and most have cryptobiotic abilities, being able to survive repeated cycles of complete desiccation and freezing. To identify systems that may contribute to these striking abilities, we sequenced and compared the genomes and transcriptomes of parthenogenetic and outcrossing panagrolaimid species, including cryptobionts and non-cryptobionts. The parthenogens are triploids, most likely originating through hybridization. Adaptation to cryptobiosis shaped the genomes of panagrolaimid nematodes and is associated with the expansion of gene families and signatures of selection on genes involved in cryptobiosis. All panagrolaimids have acquired genes through horizontal gene transfer, some of which are likely to contribute to cryptobiosis. |
format |
Article in Journal/Newspaper |
author |
Schiffer, PH Danchin, EGJ Burnell, AM Creevey, CJ Wong, S Dix, I O'Mahony, G Culleton, BA Rancurel, C Stier, G Martínez-Salazar, EA Marconi, A Trivedi, U Kroiher, M Thorne, MAS Schierenberg, E Wiehe, T Blaxter, M |
author_facet |
Schiffer, PH Danchin, EGJ Burnell, AM Creevey, CJ Wong, S Dix, I O'Mahony, G Culleton, BA Rancurel, C Stier, G Martínez-Salazar, EA Marconi, A Trivedi, U Kroiher, M Thorne, MAS Schierenberg, E Wiehe, T Blaxter, M |
author_sort |
Schiffer, PH |
title |
Signatures of the Evolution of Parthenogenesis and Cryptobiosis in the Genomes of Panagrolaimid Nematodes |
title_short |
Signatures of the Evolution of Parthenogenesis and Cryptobiosis in the Genomes of Panagrolaimid Nematodes |
title_full |
Signatures of the Evolution of Parthenogenesis and Cryptobiosis in the Genomes of Panagrolaimid Nematodes |
title_fullStr |
Signatures of the Evolution of Parthenogenesis and Cryptobiosis in the Genomes of Panagrolaimid Nematodes |
title_full_unstemmed |
Signatures of the Evolution of Parthenogenesis and Cryptobiosis in the Genomes of Panagrolaimid Nematodes |
title_sort |
signatures of the evolution of parthenogenesis and cryptobiosis in the genomes of panagrolaimid nematodes |
publishDate |
2019 |
url |
https://discovery.ucl.ac.uk/id/eprint/10086607/1/Schiffer_Signatures%20of%20the%20Evolution%20of%20Parthenogenesis%20and%20Cryptobiosis%20in%20the%20Genomes%20of%20Panagrolaimid%20Nematodes_VoR.pdf https://discovery.ucl.ac.uk/id/eprint/10086607/ |
geographic |
Arctic Antarctic |
geographic_facet |
Arctic Antarctic |
genre |
Antarc* Antarctic Arctic |
genre_facet |
Antarc* Antarctic Arctic |
op_source |
iScience , 21 pp. 587-602. (2019) |
op_relation |
https://discovery.ucl.ac.uk/id/eprint/10086607/1/Schiffer_Signatures%20of%20the%20Evolution%20of%20Parthenogenesis%20and%20Cryptobiosis%20in%20the%20Genomes%20of%20Panagrolaimid%20Nematodes_VoR.pdf https://discovery.ucl.ac.uk/id/eprint/10086607/ |
op_rights |
open |
_version_ |
1786163756912345088 |