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Genomic analyses of sibling honey bee ectoparasitic mite species show divergent strategies of adaptation

View ORCID ProfileMaeva A. Techer, Rahul V. Rane, Miguel L. Grau, John M. K. Roberts, Shawn T. Sullivan, Ivan Liachko, Anna K. Childers, Jay D. Evans, Alexander S. Mikheyev
doi: https://doi.org/10.1101/512988
Maeva A. Techer
1Okinawa Institute of Science and Technology, 1919-1 Tancha Onna-son, 904-0495 Okinawa, Japan
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  • ORCID record for Maeva A. Techer
  • For correspondence: maeva.techer@oist.jp alexander.mikheyev@oist.jp
Rahul V. Rane
2Commonwealth Scientific and Industrial Research Organisation, Clunies Ross St, (GPO Box 1700), Acton, ACT, 2601, Australia
3Bio21 Institute, School of BioSciences, University of Melbourne, 30 Flemington Road, Parkville, 3010, Australia
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Miguel L. Grau
1Okinawa Institute of Science and Technology, 1919-1 Tancha Onna-son, 904-0495 Okinawa, Japan
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John M. K. Roberts
4CSIRO, Canberra, ACT, 2601, Australia
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Shawn T. Sullivan
5Phase Genomics Inc, Seattle, WA, 98195, USA
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Ivan Liachko
5Phase Genomics Inc, Seattle, WA, 98195, USA
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Anna K. Childers
6USDA-ARS Insect Genetics and Biochemistry Research Unit, Fargo, ND, USA
7USDA-ARS Bee Research Lab, Beltsville, MD, USA
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Jay D. Evans
7USDA-ARS Bee Research Lab, Beltsville, MD, USA
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Alexander S. Mikheyev
1Okinawa Institute of Science and Technology, 1919-1 Tancha Onna-son, 904-0495 Okinawa, Japan
8Australian National University, Canberra, ACT, 2600, Australia
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  • For correspondence: maeva.techer@oist.jp alexander.mikheyev@oist.jp
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Abstract

Multispecies host-parasite evolution is common, but how parasites evolve after speciating remains poorly understood. On one hand, their shared evolutionary history and physiology may propel them along similar evolutionary trajectories. Alternatively, they may pursue different strategies to reduce competition with each other. Here, we test these scenarios using the economically important association between honey bees and ectoparasitic mites by sequencing the genomes of the sister species Varroa destructor and Varroa jacobsoni. We also compare them to another honey bee mite (Tropilaelaps mercedesae). We find different sets of genes and gene ontology terms under selection in each of the lineages, indicating distinct selective regimes operating on each of the parasites. Divergent strategies pursued by the parasites may make it harder for the host species to develop tolerance to all of them at the same time. Based on our findings, we suggest that species-specific strategies may be needed to combat evolving parasite communities.

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Posted January 07, 2019.
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Genomic analyses of sibling honey bee ectoparasitic mite species show divergent strategies of adaptation
Maeva A. Techer, Rahul V. Rane, Miguel L. Grau, John M. K. Roberts, Shawn T. Sullivan, Ivan Liachko, Anna K. Childers, Jay D. Evans, Alexander S. Mikheyev
bioRxiv 512988; doi: https://doi.org/10.1101/512988
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Genomic analyses of sibling honey bee ectoparasitic mite species show divergent strategies of adaptation
Maeva A. Techer, Rahul V. Rane, Miguel L. Grau, John M. K. Roberts, Shawn T. Sullivan, Ivan Liachko, Anna K. Childers, Jay D. Evans, Alexander S. Mikheyev
bioRxiv 512988; doi: https://doi.org/10.1101/512988

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