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Transcriptomes of three species of Tipuloidea (Diptera, Tipulomorpha) and implications for phylogeny of Tipulomorpha.


ABSTRACT: Tipulomorpha has long been a problematic taxon in terms of familial composition, phylogenetic relationships among families and position relative to other 'lower' Diptera. Whole-transcriptome shotgun sequencing provides a powerful basis for phylogenetic studies. We performed de novo transcriptome sequencing to produce the first transcriptome datasets representing the families Pediciidae, Limoniidae and Cylindrotomidae using high-throughput sequencing technologies. We assembled cDNA libraries for Pedicia vetusta (Alexander) (Pediciidae), Rhipidia sejuga Zhang, Li and Yang (Limoniidae) and Liogma simplicicornis Alexander (Cylindrotomidae). Using the Illumina RNA-Seq method, we obtained 28,252, 44,152 and 44,281 unigenes, from the three respective species. Based on sequence similarity searches, 12,475 (44.16%), 20,334 (46.05%) and 17,478 (39.47%) genes were identified. Analysis of genes highly conserved at the amino acid sequence level revealed there were 1,709 single-copy orthologs genes across the analyzed species. Phylogenetic trees constructed using maximum likelihood (ML) based on the 1,709 single-copy orthologs genes indicated that the relationship between the four major infraorders of lower Diptera was: Culicomorpha + (Tipulomorpha + (Psychodomorpha + (Bibionomorpha + Brachycera))). Trichoceridae belongs within Tipulomorpha as the sister-group of Tipuloidea. Highly supported relationships within the Tipuloidea are Pediciidae + (Limoniidae + (Cylindrotomidae + Tipulidae)). Four-cluster likelihood mapping was used to study potential incongruent signals supporting other topologies, however, results were congruent with the ML tree.

SUBMITTER: Kang Z 

PROVIDER: S-EPMC5338816 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature

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Transcriptomes of three species of Tipuloidea (Diptera, Tipulomorpha) and implications for phylogeny of Tipulomorpha.

Kang Zehui Z   Zhang Xiao X   Ding Shuangmei S   Tang Chufei C   Wang Yuyu Y   Jong Herman de H   Cameron Stephen L SL   Wang Mengqing M   Yang Ding D  

PloS one 20170306 3


Tipulomorpha has long been a problematic taxon in terms of familial composition, phylogenetic relationships among families and position relative to other 'lower' Diptera. Whole-transcriptome shotgun sequencing provides a powerful basis for phylogenetic studies. We performed de novo transcriptome sequencing to produce the first transcriptome datasets representing the families Pediciidae, Limoniidae and Cylindrotomidae using high-throughput sequencing technologies. We assembled cDNA libraries for  ...[more]

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