Howard Hughes Medical Institute and Laboratory of Molecular Biology, University of Wisconsin, Madison, USA.
Departamento de Genética, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Brazil.
Genome Biol Evol. 2021 Aug 3;13(8). doi: 10.1093/gbe/evab179.
The vinegar fly Drosophila melanogaster is a pivotal model for invertebrate development, genetics, physiology, neuroscience, and disease. The whole family Drosophilidae, which contains over 4,400 species, offers a plethora of cases for comparative and evolutionary studies. Despite a long history of phylogenetic inference, many relationships remain unresolved among the genera, subgenera, and species groups in the Drosophilidae. To clarify these relationships, we first developed a set of new genomic markers and assembled a multilocus data set of 17 genes from 704 species of Drosophilidae. We then inferred a species tree with highly supported groups for this family. Additionally, we were able to determine the phylogenetic position of some previously unplaced species. These results establish a new framework for investigating the evolution of traits in fruit flies, as well as valuable resources for systematics.
醋蝇黑腹果蝇是无脊椎动物发育、遗传学、生理学、神经科学和疾病的重要模式生物。包含超过 4400 个物种的果蝇科为比较和进化研究提供了大量案例。尽管在系统发育推断方面有着悠久的历史，但在果蝇科的属、亚属和种群之间，许多关系仍然没有得到解决。为了澄清这些关系，我们首先开发了一组新的基因组标记，并从 704 种果蝇中组装了一个包含 17 个基因的多位点数据集。然后，我们推断了这个科的一个具有高度支持的物种树。此外，我们还能够确定一些以前未定位的物种的系统发育位置。这些结果为研究果蝇特征的进化提供了一个新的框架，也是系统学的宝贵资源。
