Drosophila pseudoobscura is a species of fruit fly, used extensively in lab studies of speciation. It is native to western North America. In 2005, D. pseudoobscura was the second Drosophila species to have its genome sequenced, after the model organism Drosophila melanogaster. [2]

The D. pseudoobscura Y has all the features of a typical Drosophila Y chromosome (including X pairing and being essential for male fertility), and yet it is less than 18 My old. In addition to the origin of Y chromosomes, the present findings have a direct bearing on the evolution of heterochromatin and intron sizes, because heterochromatin ...

果蝇（Drosophila pseudoobscura）是果蝇的一种，广泛用于实验室对自然种群的遗传学研究。 它最早由Theodosius Dobzhansky和他的同事使用。 他们从北美西部和墨西哥的种群中收集样本，并在实验室的种群笼子中种植。

To facilitate the exploration of genetic variation within species and comparative genomics across species, we present PseudoBase, a database that couples extensive publicly available genomic data with simple visualization and query tools via an intuitive graphical interface, amenable for use in both research and educational settings.

鲜有人知的是另一种与 D. melanogaster 在超过五千万年前就分化的果蝇（ D. pseudoobscura ）。 20个世纪 30 年代著名演化遗传学家杜布赞斯基发现该果蝇野外群体里有大量的染色体大片段重排（结构变异），并且随着四季更替会发生重排频率的改变。

果蝇 Drosophila subobscura 属于 obscura 家族下的一个果蝇物种，广泛欧洲、非洲北部、以及亚洲北部。 该物种是果蝇中比较特殊的一类，因为其雌性一生只和一个雄性交配，同时需要光线的刺激才能交配。 此外，它也不像其他果蝇那样可以通过翅膀的震动来吸引异性交配。 本研究主要关注于 D. subobscura，但是为了比较和分析进化关系，本研究还纳入了两个两个和 D. subobscura 很临近的果蝇物种： D. guanche 和 D. madeirensis. D. guanche 仅仅分布在非洲西部的 加那 …

该工作收集了D. pseudoobscura从胚胎到成虫 8 个不同发育时期或者组织，11 个组蛋白修饰标记，总计 71 个表观遗传组数据，以及四个时期或组织的三维基因组 Hi-C 数据。

2021年1月11日 · To facilitate the exploration of genetic variation within species and comparative genomics across species, we present PseudoBase, a database that couples extensive publicly available genomic data with simple visualization and query tools via an intuitive graphical interface, amenable for use in both research and educational settings.

In the 1940's, evolutionary biologists had none of the molecular techniques in use today to quantify levels of population genetic variation. Instead, techniques based on morphological characters or in the case of species like Drosophila pseudoobscura, chromosomal inversions that are polymorphic were used.

2007年6月7日 · Results: Phylogenetic analyses indicate that each of the subobscura, sinobscura, affinis, and pseudoobscura subgroups is monophyletic. The subobscura and microlabis subgroups form the basal clade in the obscura group.