Universität zu Köln

Schiffer, Philipp H., Danchin, Etienne G. J., Burnell, Ann M., Creevey, Christopher J., Wong, Simon, Dix, Ilona, O'Mahony, Georgina, Culleton, Bridget A., Rancurel, Corinne ORCID: 0000-0001-9355-5491, Stier, Gary, Martinez-Salazar, Elizabeth A., Marconi, Aleksandra, Trivedi, Urmi, Kroiher, Michael, Thorne, Michael A. S., Schierenberg, Einhard, Wiehe, Thomas ORCID: 0000-0002-8932-2772 and Blaxter, Mark (2019). Signatures of the Evolution of Parthenogenesis and Cryptobiosis in the Genomes of Panagrolaimid Nematodes. iScience, 21. S. 587 - 640. CAMBRIDGE: CELL PRESS. ISSN 2589-0042

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Abstract

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.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Schiffer, Philipp H. UNSPECIFIED UNSPECIFIED UNSPECIFIED Danchin, Etienne G. J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Burnell, Ann M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Creevey, Christopher J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Wong, Simon UNSPECIFIED UNSPECIFIED UNSPECIFIED Dix, Ilona UNSPECIFIED UNSPECIFIED UNSPECIFIED O'Mahony, Georgina UNSPECIFIED UNSPECIFIED UNSPECIFIED Culleton, Bridget A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Rancurel, Corinne UNSPECIFIED orcid.org/0000-0001-9355-5491 UNSPECIFIED Stier, Gary UNSPECIFIED UNSPECIFIED UNSPECIFIED Martinez-Salazar, Elizabeth A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Marconi, Aleksandra UNSPECIFIED UNSPECIFIED UNSPECIFIED Trivedi, Urmi UNSPECIFIED UNSPECIFIED UNSPECIFIED Kroiher, Michael UNSPECIFIED UNSPECIFIED UNSPECIFIED Thorne, Michael A. S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Schierenberg, Einhard UNSPECIFIED UNSPECIFIED UNSPECIFIED Wiehe, Thomas UNSPECIFIED orcid.org/0000-0002-8932-2772 UNSPECIFIED Blaxter, Mark UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-127238
DOI:	10.1016/j.isci.2019.10.039
Journal or Publication Title:	iScience
Volume:	21
Page Range:	S. 587 - 640
Date:	2019
Publisher:	CELL PRESS
Place of Publication:	CAMBRIDGE
ISSN:	2589-0042
Language:	English
Faculty:	Faculty of Mathematics and Natural Sciences
Divisions:	Faculty of Mathematics and Natural Sciences > Department of Biology > Institute for Genetics
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language DEVELOPMENTAL SYSTEM DRIFT; HORIZONTAL GENE-TRANSFER; TRANSFER-RNA GENES; CAENORHABDITIS-ELEGANS; READ ALIGNMENT; DRAFT GENOME; SEQUENCE; SOFTWARE; MUTATION; PROGRAM Multiple languages Multidisciplinary Sciences Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/12723