The ''Drosophila immigrans'' species group is a

polyphyletic A polyphyletic group is an assemblage of organisms or other evolving elements that is of mixed evolutionary origin. The term is often applied to groups that share similar features known as homoplasies, which are explained as a result of converg ...

and speciose lineage of ''

Drosophila ''Drosophila'' () is a genus of flies, belonging to the family Drosophilidae, whose members are often called "small fruit flies" or (less frequently) pomace flies, vinegar flies, or wine flies, a reference to the characteristic of many species ...

'' flies, including over 100 species. Immigrans species belong to the

Immigrans-tripunctata radiation The immigrans-tripunctata radiation is a speciose lineage of ''Drosophila'' flies, including over 300 species. The immigrans-tripunctata radiation is a sister lineage to most other members of the subgenus Drosophila. A number of species have had ...

of the subgenus

. Well-described species include ''

Drosophila immigrans ''Drosophila immigrans'' is a species of vinegar fly in the family Drosophilidae. ''Drosophila immigrans'' is a member of the Immigrans-tripunctata radiation of the subgenus Drosophila. It is related to the '' Drosophila quinaria'' and ''Drosop ...

'', and the sister species ''

Drosophila albomicans ''Drosophila albomicans'' is a species of vinegar fly in the family Drosophilidae. ''Drosophila albomicans'' is a member of the Immigrans-tripunctata radiation of the subgenus Drosophila. The ''D. albomicans'' genome was first sequenced in 2012 ...

'' and ''

Drosophila nasuta ''Drosophila'' () is a genus of fly, flies, belonging to the family (biology), family Drosophilidae, whose members are often called "small fruit flies" or (less frequently) pomace flies, vinegar flies, or wine flies, a reference to the characte ...

''. The genome of ''D. albomicans'' was sequenced in 2012 in an effort to characterize novel sex chromosome development in ''D. albomicans''. Immigrans group species are related to mushroom-breeding Drosophila of the

Quinaria A quinaria (plural: quinariae) is a Roman unit of area, roughly equal to . Its primary use was to measure the cross-sectional area of pipes in Roman water distribution systems. A "one quinaria" pipe is in diameter. In Roman times, there was c ...

and Testacea species groups.

Subgroups

The Immigrans species group can be further divided into four subgroups: * Immigrans subgroup: includes '' D. immigrans'' * Nasuta subgroup: includes '' D. albomicans'' and '' D. nasuta'' * Hypocausta subgroup * Quadrilineata subgroup

Notes

* Bachtrog and Vicoso. 2015
"Numerous Transitions of Sex Chromosomes in Diptera."
PLoS Biology, 13(4), e1002078 * Katoh et al. 2007
"Phylogeny of the Drosophila immigrans Species Group (Diptera: Drosophilidae) Based on Adh and Gpdh Sequences."
Zoolog Sci. 24(9):913-21.

References

{{Taxonbar, from=Q77968748 immigrans Insect species groups Polyphyletic groups