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Mitochondrial DNA Part A
DNA Mapping, Sequencing, and Analysis
Volume 28, 2017 - Issue 6
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Research Article

Structure and variation of the Fringillidae (Aves: Passeriformes) mitochondrial DNA control region and their phylogenetic relationship

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Pages 867-871 | Received 23 Apr 2016, Accepted 05 Jun 2016, Published online: 23 Aug 2016
 

Abstract

The control region is the major noncoding segment of animal mitochondrial DNA. To infer the structure and variation of Fringillidae mitochondrial DNA control region, the entire control region sequences of 25 species were analyzed. The length of the control region sequences was very conserved (1230 ± 18) and can be separated into three domains. The frequency of both substitutions and gaps was highest in the third domain and lowest in the central region. The control region has the same flanking gene order from tRNAGlu to tRNAPhe. Genetic distances between species ranged from 1.80% (between Carduelis pinus and Carduelis spinus) to 25.34% (between Carduelis sinica and Coccothraustes vespertinus). The average genetic distances among the species within the genera varied from 5.11% (Leucosticte) to 14.31% (Carpodacus). The average genetic distances showed insignificantly negative correlation with ts/tv. Domain III is the most variable of the three domains among all the genera. The control region of Fringillidae contains a putative TAS element and the highly conserved CSB-1, and F, E, D, C boxes. However, neither CSB-2 nor CSB-3 could be unambiguously identified in the Fringillidae. The maximum likelihood method was used to construct a phylogenetic tree. Control region analysis demonstrated that some currently recognized genera may be polyphyletic, including Carpodacus, Carduelis and Serinus.

Disclosure statement

The authors declare no conflict of interest.

Funding

This work was supported by the National Natural Science Foundation of China (31260088, 31560590), Jiangxi Province Talent Project 555, Jiangxi Province Major Disciplines Academic Leaders (20133BCB22010), the Natural Science Foundation of Jiangxi Province (20132BAB204022, 20152ACB21006), and the Science and Technology Foundation of Jiangxi Provincial Department of Education (GJJ150768).

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