Drosophila immigrans species group explained

The Drosophila immigrans species group is a polyphyletic and speciose lineage of Drosophila flies, including over 100 species.^{[1] [2]} Immigrans species belong to the Immigrans-tripunctata radiation of the subgenus Drosophila. Well-described species include Drosophila immigrans, and the sister species Drosophila albomicans and Drosophila nasuta. The genome of D. albomicans was sequenced in 2012 in an effort to characterize novel sex chromosome development in D. albomicans.^[3] Immigrans group species are related to mushroom-breeding Drosophila of the Quinaria and Testacea species groups.^{[2] [4]}

Subgroups

The Immigrans species group can be further divided into four subgroups:^[2]

• 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^[5]
• 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.^[2]

Notes and References

1. Phylogeny of the Genus Drosophila. Rob. DeSalle. Patrick M.. O’Grady. May 1, 2018. Genetics. 209. 1. 1–25. 10.1534/genetics.117.300583. 29716983. 5937177.
2. Phylogeny of the Drosophila immigrans Species Group (Diptera: Drosophilidae) Based on Adh and Gpdh Sequences. Tadashi. Aotsuka. Koichiro. Tamura. Daisuke. Nakaya. Toru. Katoh. September 25, 2007. Zoological Science. 24. 9. 913–921. 10.2108/zsj.24.913. 17960997. 2115/43826. 23776988.
3. Deciphering neo-sex and B chromosome evolution by the draft genome of Drosophila albomicans. Qi. Zhou. Hong-mei. Zhu. Quan-fei. Huang. Li. Zhao. Guo-jie. Zhang. Scott W.. Roy. Beatriz. Vicoso. Zhao-lin. Xuan. Jue. Ruan. Yue. Zhang. Ruo-ping. Zhao. Chen. Ye. Xiu-qing. Zhang. Jun. Wang. Wen. Wang. Doris. Bachtrog. March 22, 2012. BMC Genomics. 13. 1. 109. 10.1186/1471-2164-13-109. 22439699. 3353239 . free .
4. Hanson MA, Hamilton PT, Perlman SJ . Immune genes and divergent antimicrobial peptides in flies of the subgenus Drosophila . BMC Evolutionary Biology . 16 . 1 . 228 . October 2016 . 27776480 . 5078906 . 10.1186/s12862-016-0805-y . free .
5. Numerous Transitions of Sex Chromosomes in Diptera. Vicoso. B. Bachtrog. D. 2015. PLOS Biology. 13. 4. e1002078. 10.1371/journal.pbio.1002078. 25879221. 4400102 . free .