Molecular phylogeny and evolution of world Tachinidae (Diptera)

被引:72
|
作者
Stireman, John O., III [1 ]
Cerretti, Pierfilippo [2 ]
O'Hara, James E. [3 ]
Blaschke, Jeremy D. [4 ]
Moulton, John K. [5 ]
机构
[1] Wright State Univ, Dept Biol Sci, Dayton, OH 45435 USA
[2] Sapienza Univ Roma, Dipartimento Biol & Biotecnol Charles Darwin, Piazzale A Moro 5, I-00185 Rome, Italy
[3] Agr & Agri Food Canada, Canadian Natl Collect Insects, 960 Carling Ave, Ottawa, ON K1A 0C6, Canada
[4] Union Univ, Dept Biol, 1050 Union Univ Dr, Jackson, TN 38305 USA
[5] Univ Tennessee, Dept Entomol & Plant Pathol, Knoxville, TN 37996 USA
基金
美国国家科学基金会;
关键词
Tachinid fly; Parasitoid; Host use; Oestroidea; Diversification; Ancestral state reconstruction; BIOLOGICAL-CONTROL; FLIES DIPTERA; EGG SURFACE; MORPHOLOGY; GENUS; ACCURATE; MODEL; DIVERSIFICATION; CLASSIFICATION; APPROXIMATION;
D O I
10.1016/j.ympev.2018.12.002
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
We reconstructed phylogenetic relationships within the diverse parasitoid fly family Tachinidae using four nuclear loci (7800 bp) and including an exceptionally large sample of more than 500 taxa from around the world. The position of the earthworm-parasitizing Polleniinae (Calliphoridae s.l.) as sister to Tachinidae is strongly supported. Our analyses recovered each of the four tachinid subfamilies and most recognized tribes, with some important exceptions in the Dexiinae and Tachininae. Most notably, the tachinine tribes Macquartiini and Myiophasiini form a Glade sister to all other Tachinidae, and a Glade of Palpostomatini is reconstructed as sister to Dexiinae + Phasiinae. Although most nodes are well-supported, relationships within several lineages that appear to have undergone rapid episodes of diversification (basal Dexiinae and Tachininae, Blondeliini) were poorly resolved. Reconstructions of host use evolution are equivocal, but generally support the hypothesis that the ancestral host of tachinids was a beetle and that subsequent host shifts to caterpillars may coincide with accelerated diversification. Evolutionary reconstructions of reproductive strategy using alternative methods were incongruent, however it is most likely that ancestral tachinids possessed unincubated, thick shelled eggs from which incubated eggs evolved repeatedly, potentially expanding available host niches. These results provide a broad foundation for understanding the phylogeny and evolution of this important family of parasitoid insects. We hope it will serve as a framework to be used in concert with morphology and other sources of evidence to revise the higher taxonomic classification of Tachinidae and further explore their evolutionary history and diversification.
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页数:19
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