About: Calyptratae is a research topic. Over the lifetime, 91 publications have been published within this topic receiving 2630 citations. The topic is also known as: Calyptrata.
TL;DR: It is demonstrated that flies experienced three episodes of rapid radiation—lower Diptera (220 Ma), lower Brachycera (180 Ma), and Schizophora (65 Ma)—and a number of life history transitions to hematophagy, phytophagy and parasitism in the history of fly evolution over 260 million y.
Abstract: Flies are one of four superradiations of insects (along with beetles, wasps, and moths) that account for the majority of animal life on Earth. Diptera includes species known for their ubiquity (Musca domestica house fly), their role as pests (Anopheles gambiae malaria mosquito), and their value as model organisms across the biological sciences (Drosophila melanogaster). A resolved phylogeny for flies provides a framework for genomic, developmental, and evolutionary studies by facilitating comparisons across model organisms, yet recent research has suggested that fly relationships have been obscured by multiple episodes of rapid diversification. We provide a phylogenomic estimate of fly relationships based on molecules and morphology from 149 of 157 families, including 30 kb from 14 nuclear loci and complete mitochondrial genomes combined with 371 morphological characters. Multiple analyses show support for traditional groups (Brachycera, Cyclorrhapha, and Schizophora) and corroborate contentious findings, such as the anomalous Deuterophlebiidae as the sister group to all remaining Diptera. Our findings reveal that the closest relatives of the Drosophilidae are highly modified parasites (including the wingless Braulidae) of bees and other insects. Furthermore, we use micro-RNAs to resolve a node with implications for the evolution of embryonic development in Diptera. We demonstrate that flies experienced three episodes of rapid radiation—lower Diptera (220 Ma), lower Brachycera (180 Ma), and Schizophora (65 Ma)—and a number of life history transitions to hematophagy, phytophagy, and parasitism in the history of fly evolution over 260 million y.
TL;DR: A higher‐level phylogenetic hypothesis is proposed for the Calyptratae based on an extensive DNA sequence dataset for 11 noncalyptrate outgroups and 247 calyptrate species representing all commonly accepted families in the Oestroidea and Hippoboscoidea, as well as those of the muscoid grade.
Abstract: The dipteran clade Calyptratae is comprised of approximately 18 000 described species (12% of the known dipteran diversity) and includes well-known taxa such as houseflies, tsetse flies, blowflies and botflies, which have a close association with humans. However, the phylogenetic relationships within this insect radiation are very poorly understood and controversial. Here we propose a higher-level phylogenetic hypothesis for the Calyptratae based on an extensive DNA sequence dataset for 11 noncalyptrate outgroups and 247 calyptrate species representing all commonly accepted families in the Oestroidea and Hippoboscoidea, as well as those of the muscoid grade. DNA sequences for genes in the mitochondrial (12S, 16S, cytochrome c oxidase subunit I and cytochrome b) and nuclear genome [18S, 28S, the carbamoyl phosphate synthetase region of CAD (rudimentary), Elongation factor one alpha] were used to reconstruct the relationships. We discuss problems relating to the alignment and analysis of large datasets and emphasize the advantages of utilizing a guide tree-based approach for the alignment of the DNA sequences and using the leaf stability index to identify ‘wildcard’ taxa whose excessive instability obscures the phylogenetic signal. Our analyses support the monophyly of the Calyptratae and demonstrate that the superfamily Oestroidea is nested within the muscoid grade. We confirm that the monotypic family Mystacinobiidae is an oestroid and further revise the composition of the Oestroidea by demonstrating that the previously unplaced and still undescribed ‘McAlpine’s fly’ is nested within this superfamily as a probable sister group to Mystacinobiidae. Within the Oestroidea we confirm with molecular data that the Calliphoridae are a paraphyletic grade of lineages. The families Sarcophagidae and Rhiniidae are monophyletic, but support for the monophyly of Tachinidae and Rhinophoridae depends on analytical technique (e.g. parsimony or maximum likelihood). The superfamilies Hippoboscoidea and Oestroidea are consistently found to be monophyletic, and the paraphyly of the muscoid grade is confirmed. In the overall relationships for the calyptrates, the Hippoboscoidea are sister group to the remaining Calyptratae, and the Fanniidae are sister group to the nonhippoboscoid calyptrates, whose relationships can be summarized as (Muscidae (Oestroidea (Scathophagidae, Anthomyiidae))).
TL;DR: In this paper, the mitochondrial genome of the blowfly Chrysomya chloropyga (Diptera: Calliphoridae) was completely sequenced using the shotgun approach and the overall nucleotide composition was heavily biased towards As and Ts, which accounted for 76.7% of the whole genome.
TL;DR: The monophyly of three of the four recognized families in the Muscoidea is confirmed: the Fanniidae, Muscidae, and Scathophagidae, however, the Anthomyiidae are possibly paraphyletic.
TL;DR: The phylogenomic data cannot confidently place the remaining blowfly subfamilies and compared to hypotheses from the Sanger sequencing era, many clades within the muscoid grade are congruent but now have much higher support.