Genome of the Parasitoid Wasp Diachasma alloeum, an Emerging Model for Ecological Speciation and Transitions to Asexual Reproduction

Eric S Tvedte; Kimberly K O Walden; Kyle E McElroy; John H Werren; Andrew A Forbes; Glen R Hood; John M Logsdon; Jeffrey L Feder; Hugh M Robertson

doi:10.1093/gbe/evz205

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Genome of the Parasitoid Wasp Diachasma alloeum, an Emerging Model for Ecological Speciation and Transitions to Asexual Reproduction

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Genome of the Parasitoid Wasp Diachasma alloeum, an Emerging Model for Ecological Speciation and Transitions to Asexual Reproduction

Eric S Tvedte, Kimberly K O Walden, Kyle E McElroy, John H Werren, Andrew A Forbes, Glen R Hood, John M Logsdon, Jeffrey L Feder and Hugh M Robertson

Genome biology and evolution, Vol.11(10), pp.2767-2773

10/01/2019

DOI: 10.1093/gbe/evz205

PMCID: PMC6781843

PMID: 31553440

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Abstract

Parasitoid wasps are among the most speciose animals, yet have relatively few available genomic resources. We report a draft genome assembly of the wasp Diachasma alloeum (Hymenoptera: Braconidae), a host-specific parasitoid of the apple maggot fly Rhagoletis pomonella (Diptera: Tephritidae), and a developing model for understanding how ecological speciation can "cascade" across trophic levels. Identification of gene content confirmed the overall quality of the draft genome, and we manually annotated ∼400 genes as part of this study, including those involved in oxidative phosphorylation, chemosensation, and reproduction. Through comparisons to model hymenopterans such as the European honeybee Apis mellifera and parasitoid wasp Nasonia vitripennis, as well as a more closely related braconid parasitoid Microplitis demolitor, we identified a proliferation of transposable elements in the genome, an expansion of chemosensory genes in parasitoid wasps, and the maintenance of several key genes with known roles in sexual reproduction and sex determination. The D. alloeum genome will provide a valuable resource for comparative genomics studies in Hymenoptera as well as specific investigations into the genomic changes associated with ecological speciation and transitions to asexuality.

Animals

Female

Genes, Insect

Genetic Speciation

Genome, Insect

Hymenoptera - genetics

Male

Models, Biological

Reproduction, Asexual - genetics

Sex Determination Processes

Wasps - genetics

Details

Title: Subtitle: Genome of the Parasitoid Wasp Diachasma alloeum, an Emerging Model for Ecological Speciation and Transitions to Asexual Reproduction
Creators: Eric S Tvedte - Institute for Genome Sciences, University of Maryland School of Medicine, Baltimore, MD
Kimberly K O Walden - Department of Entomology, University of Illinois at Urbana-Champaign, IL
Kyle E McElroy - Department of Biology, University of Iowa, IA
John H Werren - Department of Biology, University of Rochester, NY
Andrew A Forbes - Department of Biology, University of Iowa, IA
Glen R Hood - Department of Biological Sciences, Wayne State University, Detroit, MI
John M Logsdon - Department of Biology, University of Iowa, IA
Jeffrey L Feder - Department of Biological Sciences, University of Notre Dame, IN
Hugh M Robertson - Department of Entomology, University of Illinois at Urbana-Champaign, IL
Resource Type: Journal article
Publication Details: Genome biology and evolution, Vol.11(10), pp.2767-2773
DOI: 10.1093/gbe/evz205
PMID: 31553440
PMCID: PMC6781843
NLM abbreviation: Genome Biol Evol
ISSN: 1759-6653
eISSN: 1759-6653
Grant note: DOI: 10.13039/100005825, name: National Institute of Food and Agriculture, award: A2008-35302-18819, 2015-67013-23289; DOI: 10.13039/100000001, name: National Science Foundation, award: DEB-1145355, DEB-1638997, DEB1257053, IOS1456233
Language: English
Date published: 10/01/2019
Academic Unit: Biology; University College Courses
Record Identifier: 9984217419102771

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