Drosophila orientacea is a member of the testacea species group of Drosophila. Testacea species are specialist fruit flies that breed on the fruiting bodies of mushrooms. Drosophila orientacea is found in northern Japan on the island of Hokkaido. However, the European species Drosophila testacea and D. orientacea can produce viable hybrids, blurring the level of speciation between the two species. While viable hybrids are produced, extreme behavioural barriers likely prevent mating in the wild. While D. orientacea readily mates with Drosophila neotestacea, viable hybrids are never produced.[1] This hybrid inviability (see Haldane's rule) may be due either to issues during copulation, or selfish X chromosomes and co-evolved suppressors.[2]

Drosophila orientacea
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Diptera
Family: Drosophilidae
Subfamily: Drosophilinae
Genus: Drosophila
Subgenus: Drosophila
Species group: testacea
Species:
D. orientacea
Binomial name
Drosophila orientacea
Grimaldi, James, and Jaenike, 1992[1]

See also

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References

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  1. ^ a b Grimaldi, David; James, Avis C.; Jaenike, John (1992). "Systematics and Modes of Reproductive Isolation in the Holarctic Drosophila testacea Species Group (Diptera: Drosophilidae)". Annals of the Entomological Society of America. 85 (6): 671–685. doi:10.1093/aesa/85.6.671.
  2. ^ Pieper, K. E.; Dyer, K. A. (2016). "Occasional recombination of a selfish X-chromosome may permit its persistence at high frequencies in the wild". Journal of Evolutionary Biology. 29 (11): 2229–2241. doi:10.1111/jeb.12948. PMC 5089913. PMID 27423061.