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International Journal Of Bilogical Sciences

.: Home > International Journal Of Bilogical Sciences > 2016 > Volume 12 Number 5 > Dong Zhang, Liping Yan, Ming Zhang, Hongjun Chu, Jie Cao, Kai Li, Defu Hu, Thomas Pape

Phylogenetic inference of calyptrates, with the first mitogenomes for Gasterophilinae (Diptera: Oestridae) and Paramacronychiinae (Diptera: Sarcophagidae)

Dong Zhang, Liping Yan, Ming Zhang, Hongjun Chu, Jie Cao, Kai Li, Defu Hu, Thomas Pape
1. School of Nature Conservation, Beijing Forestry University, Beijing, China. 2. Natural History Museum of Denmark, University of Copenhagen, Copenhagen, Denmark. 3. Wildlife Conservation Office of Altay Prefecture, Altay, Xinjiang, China. 4. Xinjiang Research Centre for Breeding Przewalski’s Horse, Ürümqi, Xinjiang, China. These authors contributed equally to this study. Corresponding author: Dong Zhang, Tel: +86 10 62336801; Email: ernest8445@163.com.
Abstract :

The complete mitogenome of the horse stomach bot fly Gasterophilus pecorum (Fabricius) and a near-complete mitogenome of Wohlfahrt’s wound myiasis fly Wohlfahrtia magnifica (Schiner) were sequenced. The mitogenomes contain the typical 37 mitogenes found in metazoans, organized in the same order and orientation as in other cyclorrhaphan Diptera. Phylogenetic analyses of mitogenomes from 38 calyptrate taxa with and without two non-calyptrate outgroups were performed using Bayesian Inference and Maximum Likelihood. Three sub-analyses were performed on the concatenated data: (1) not partitioned; (2) partitioned by gene; (3) 3rd codon positions of protein-coding genes omitted. We estimated the contribution of each of the mitochondrial genes for phylogenetic analysis, as well as the effect of some popular methodologies on calyptrate phylogeny reconstruction. In the favoured trees, the Oestroidea are nested within the muscoid grade. Relationships at the family level within Oestroidea are (remaining Calliphoridae (Sarcophagidae (Oestridae, Pollenia + Tachinidae))). Our mito-phylogenetic reconstruction of the Calyptratae presents the most extensive taxon coverage so far, and the risk of long-branch attraction is reduced by an appropriate selection of outgroups. We find that in the Calyptratae the ND2, ND5, ND1, COIII, and COI genes are more phylogenetically informative compared with other mitochondrial protein-coding genes. Our study provides evidence that data partitioning and the inclusion of conserved tRNA genes have little influence on calyptrate phylogeny reconstruction, and that the 3rd codon positions of protein-coding genes are not saturated and therefore should be included.

Keywords :
mitogenome, gene contribution, taxon sampling, long-branch attraction, phylogeny, Oestroidea, Calyptratae.

Date Deposited : 16 Mar 2016 12:32

Last Modified : 16 Mar 2016 12:32

Official URL: http://www.ijbs.com/v12i5

Volume 12, Number 5, - 2016 , ISSN 1449-2288

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