Dennis, Alice B., Ballesteros, Gabriel, I, Robin, Stephanie, Schrader, Lukas, Bast, Jens, Berghoefer, Jan, Beukeboom, Leo W., Belghazi, Maya, Bretaudeau, Anthony, Buellesbach, Jan, Cash, Elizabeth, Colinet, Dominique ORCID: 0000-0001-5122-5072, Dumas, Zoe, Errbii, Mohammed, Falabella, Patrizia, Gatti, Jean-Luc, Geuverink, Elzemiek, Gibson, Joshua D., Hertaeg, Corinne ORCID: 0000-0002-2730-4042, Hartmann, Stefanie, Jacquin-Joly, Emmanuelle ORCID: 0000-0002-6904-2036, Lammers, Mark ORCID: 0000-0003-3184-1825, Lavandero, Blas, I, Lindenbaum, Ina, Massardier-Galata, Lauriane, Meslin, Camille, Montagne, Nicolas, Pairie, Nina, Poirie, Marylene, Salvia, Rosanna, Smith, Chris R., Tagu, Denis, Tares, Sophie, Vogel, Heiko, Schwander, Tanja, Simon, Jean-Christophe, Figueroa, Christian C. ORCID: 0000-0001-9218-5564, Vorburger, Christoph, Legeai, Fabrice ORCID: 0000-0002-6472-4839 and Gadau, Juergen (2020). Functional insights from the GC-poor genomes of two aphid parasitoids, Aphidius ervi and Lysiphlebus fabarum. BMC Genomics, 21 (1). LONDON: BMC. ISSN 1471-2164

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Abstract

Background Parasitoid wasps have fascinating life cycles and play an important role in trophic networks, yet little is known about their genome content and function. Parasitoids that infect aphids are an important group with the potential for biological control. Their success depends on adapting to develop inside aphids and overcoming both host aphid defenses and their protective endosymbionts. Results We present the de novo genome assemblies, detailed annotation, and comparative analysis of two closely related parasitoid wasps that target pest aphids: Aphidius ervi and Lysiphlebus fabarum (Hymenoptera: Braconidae: Aphidiinae). The genomes are small (139 and 141 Mbp) and the most AT-rich reported thus far for any arthropod (GC content: 25.8 and 23.8%). This nucleotide bias is accompanied by skewed codon usage and is stronger in genes with adult-biased expression. AT-richness may be the consequence of reduced genome size, a near absence of DNA methylation, and energy efficiency. We identify missing desaturase genes, whose absence may underlie mimicry in the cuticular hydrocarbon profile of L. fabarum. We highlight key gene groups including those underlying venom composition, chemosensory perception, and sex determination, as well as potential losses in immune pathway genes. Conclusions These findings are of fundamental interest for insect evolution and biological control applications. They provide a strong foundation for further functional studies into coevolution between parasitoids and their hosts. Both genomes are available at https://bipaa.genouest.org.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Dennis, Alice B.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ballesteros, Gabriel, IUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Robin, StephanieUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Schrader, LukasUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bast, JensUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Berghoefer, JanUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Beukeboom, Leo W.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Belghazi, MayaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bretaudeau, AnthonyUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Buellesbach, JanUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Cash, ElizabethUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Colinet, DominiqueUNSPECIFIEDorcid.org/0000-0001-5122-5072UNSPECIFIED
Dumas, ZoeUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Errbii, MohammedUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Falabella, PatriziaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Gatti, Jean-LucUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Geuverink, ElzemiekUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Gibson, Joshua D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Hertaeg, CorinneUNSPECIFIEDorcid.org/0000-0002-2730-4042UNSPECIFIED
Hartmann, StefanieUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Jacquin-Joly, EmmanuelleUNSPECIFIEDorcid.org/0000-0002-6904-2036UNSPECIFIED
Lammers, MarkUNSPECIFIEDorcid.org/0000-0003-3184-1825UNSPECIFIED
Lavandero, Blas, IUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lindenbaum, InaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Massardier-Galata, LaurianeUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Meslin, CamilleUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Montagne, NicolasUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Pairie, NinaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Poirie, MaryleneUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Salvia, RosannaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Smith, Chris R.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Tagu, DenisUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Tares, SophieUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Vogel, HeikoUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Schwander, TanjaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Simon, Jean-ChristopheUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Figueroa, Christian C.UNSPECIFIEDorcid.org/0000-0001-9218-5564UNSPECIFIED
Vorburger, ChristophUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Legeai, FabriceUNSPECIFIEDorcid.org/0000-0002-6472-4839UNSPECIFIED
Gadau, JuergenUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-332636
DOI: 10.1186/s12864-020-6764-0
Journal or Publication Title: BMC Genomics
Volume: 21
Number: 1
Date: 2020
Publisher: BMC
Place of Publication: LONDON
ISSN: 1471-2164
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
CODON USAGE BIAS; MULTIPLE SEQUENCE ALIGNMENT; DROSOPHILA IMMUNE-RESPONSE; GENE-EXPRESSION; DE-NOVO; SEX DETERMINATION; FACULTATIVE ENDOSYMBIONTS; INTRODUCED POPULATIONS; TRANSPOSABLE ELEMENTS; DNA METHYLATIONMultiple languages
Biotechnology & Applied Microbiology; Genetics & HeredityMultiple languages
URI: http://kups.ub.uni-koeln.de/id/eprint/33263

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