Divergent evolutionary trajectories following speciation in two ectoparasitic honey bee mites
Autor: | Miguel L. Grau, Anna K. Childers, Alexander S. Mikheyev, Maéva Angélique Techer, John M. K. Roberts, Rahul V. Rane, Jay D. Evans, Ivan Liachko, Shawn Sullivan |
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Jazyk: | angličtina |
Rok vydání: | 2019 |
Předmět: |
0106 biological sciences
0301 basic medicine Male media_common.quotation_subject Varroidae Medicine (miscellaneous) 010603 evolutionary biology 01 natural sciences DNA Mitochondrial General Biochemistry Genetics and Molecular Biology Competition (biology) Article Host-Parasite Interactions Evolution Molecular 03 medical and health sciences Cytochrome P-450 Enzyme System Species Specificity Mite Gene family Animals lcsh:QH301-705.5 Coevolution Varroa jacobsoni media_common Comparative genomics biology Honey bee Bees biology.organism_classification 030104 developmental biology lcsh:Biology (General) Evolutionary biology Varroa destructor Female General Agricultural and Biological Sciences |
Zdroj: | Communications Biology, Vol 2, Iss 1, Pp 1-16 (2019) Communications Biology |
ISSN: | 2399-3642 |
Popis: | Multispecies host-parasite evolution is common, but how parasites evolve after speciating remains poorly understood. Shared evolutionary history and physiology may propel species along similar evolutionary trajectories whereas pursuing different strategies can reduce competition. We test these scenarios in the economically important association between honey bees and ectoparasitic mites by sequencing the genomes of the sister mite species Varroa destructor and Varroa jacobsoni. These genomes were closely related, with 99.7% sequence identity. Among the 9,628 orthologous genes, 4.8% showed signs of positive selection in at least one species. Divergent selective trajectories were discovered in conserved chemosensory gene families (IGR, SNMP), and Halloween genes (CYP) involved in moulting and reproduction. However, there was little overlap in these gene sets and associated GO terms, indicating different selective regimes operating on each of the parasites. Based on our findings, we suggest that species-specific strategies may be needed to combat evolving parasite communities. Maeva Techer et al. report genome assemblies of two honeybee parasitic mites, Varroa destructor and V. jacobsoni. They find that 4.8% of orthologous genes show evidence of positive selection in at least one species, though the genes under selection are distinct between species indicating divergent evolution. |
Databáze: | OpenAIRE |
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