Brandt, Alexander, Van, Patrick Tran, Bluhm, Christian ORCID: 0000-0003-4691-2876, Anselmetti, Yoann, Dumas, Zoe, Figuet, Emeric, Francois, Clementine M., Galtier, Nicolas, Heimburger, Bastian ORCID: 0000-0002-2302-019X, Jaron, Kamil S., Labedan, Marjorie, Maraun, Mark, Parker, Darren J., Robinson-Rechavi, Marc, Schaefer, Ina, Simion, Paul ORCID: 0000-0002-6667-3297, Scheu, Stefan, Schwander, Tanja and Bast, Jens (2021). Haplotype divergence supports long-term asexuality in the oribatid mite Oppiella nova. Proc. Natl. Acad. Sci. U. S. A., 118 (38). WASHINGTON: NATL ACAD SCIENCES. ISSN 0027-8424

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Abstract

Sex strongly impacts genome evolution via recombination and segregation. In the absence of these processes, haplotypes within lineages of diploid organisms are predicted to accumulate mutations independently of each other and diverge over time. This so-called Meselson effect is regarded as a strong indicator of the long-term evolution under obligate asexuality. Here, we present genomic and transcriptomic data of three populations of the asexual oribatid mite species Oppiella nova and its sexual relative Oppiella subpectinata. We document strikingly different patterns of haplotype divergence between the two species, strongly supporting Meselson effect-like evolution and long-term asexuality in O. nova: I) variation within individuals exceeds variation between populations in O. nova but vice versa in O. subpectinata; II) two O. nova sublineages feature a high proportion of lineage-specific heterozygous single-nucleotide polymorphisms (SNPs), indicating that haplotypes continued to diverge after lineage separation; III) the deepest split in gene trees generally separates the two haplotypes in O. nova, but populations in O. subpectinata; and IV) the topologies of the two haplotype trees match each other. Our findings provide positive evidence for the absence of canonical sex over evolutionary time in O. nova and suggest that asexual oribatid mites can escape the dead-end fate usually associated with asexual lineages.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Brandt, AlexanderUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Van, Patrick TranUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bluhm, ChristianUNSPECIFIEDorcid.org/0000-0003-4691-2876UNSPECIFIED
Anselmetti, YoannUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Dumas, ZoeUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Figuet, EmericUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Francois, Clementine M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Galtier, NicolasUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Heimburger, BastianUNSPECIFIEDorcid.org/0000-0002-2302-019XUNSPECIFIED
Jaron, Kamil S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Labedan, MarjorieUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Maraun, MarkUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Parker, Darren J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Robinson-Rechavi, MarcUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Schaefer, InaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Simion, PaulUNSPECIFIEDorcid.org/0000-0002-6667-3297UNSPECIFIED
Scheu, StefanUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Schwander, TanjaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bast, JensUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-600908
DOI: 10.1073/pnas.2101485118
Journal or Publication Title: Proc. Natl. Acad. Sci. U. S. A.
Volume: 118
Number: 38
Date: 2021
Publisher: NATL ACAD SCIENCES
Place of Publication: WASHINGTON
ISSN: 0027-8424
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
TRHYPOCHTHONIUS-TECTORUM BERLESE; PLATYNOTHRUS-PELTIFER KOCH; VARIANT CALL FORMAT; READ ALIGNMENT; EVOLUTION; GENOME; ACARI; SEX; TOOL; PARTHENOGENESISMultiple languages
Multidisciplinary SciencesMultiple languages
URI: http://kups.ub.uni-koeln.de/id/eprint/60090

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