Nearly complete mitochondrial genome of Polyascus gregaria and the phylogenetic relationships among maxillopodans

被引:0
作者
Jie Yan
Jianli Zhou
Peng Li
Hongying Sun
Kaiya Zhou
机构
[1] Nanjing Normal University,Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences
来源
Molecular Biology Reports | 2012年 / 39卷
关键词
Mitochondrial genome; Phylogeny; Maxillopoda; Rhizocephala;
D O I
暂无
中图分类号
学科分类号
摘要
We determined for the first time the nearly complete mitochondrial genome sequence of the entozoic Polyascus gregaria, a representative of Rhizocephala, Cirripedia. The nearly complete mitogenome was 15, 465 bp in length, consisting of 11 protein-coding genes, two rRNA genes, 22 tRNA genes and one major incomplete noncoding region. In total there are 73 overlapping nucleotides and 17 spacers between genes. All genes sequenced in P. gregaria mtDNA (including RNAs) were encoded on the same strand of the DNA, and the gene arrangement differed from that of other metazoan animals. The mitochondrial genome rearrangements included translocation of at least 8 genes and even inversion of the coding polarity of at least 2 genes. Comparative analysis of the gene orders with other maxillopodan mtDNAs showed that the unique characteristics of the thoracican cirripeds lineage were not observed in this representative of rhizocephalan. Phylogenetic analyses supported a close affinity of Rhizocephala to Thoracica. By adding the mitochondrial genomes from 4 copepods, the reciprocally monophyletic cirripeds and copepods clustered as sister groups, refusing the close relationship between Cirripedia and Remipedia. However, the monophyly of Maxillopoda was not supported in this study.
引用
收藏
页码:7413 / 7419
页数:6
相关论文
共 69 条
  • [1] Crease TJ(1999)The complete sequence of the mitochondrial genome of Gene 233 89-99
  • [2] Shadel GS(1997) (Cladocera: Crustacea) Annu Rev Biochem 66 409-435
  • [3] Clayton DA(2006)Mitochondrial DNA maintenance in vertebrates Trends Ecol Evol 21 439-446
  • [4] Boore JL(2002)The use of genome-level characters for phylogenetic reconstruction Invertebr Syst 16 345-356
  • [5] Dowton M(2010)Mitochondrial gene rearrangements as phylogenetic characters in the invertebrates: the examination of genome ‘morphology’ Gene 449 9-21
  • [6] Castro LR(2006)Mitochondrial rRNA secondary structures and genome arrangements distinguish chelicerates: Comparisons with a harvestman (Arachnida: Opiliones: Mol Phylogenet Evol 38 100-116
  • [7] Austin AD(2001)) Nature 413 154-157
  • [8] Masta SE(2004)Phylogeny of arthropoda inferred from mitochondrial sequences: strategies for limiting the misleading effects of multiple changes in pattern and rates of substitution P Roy Soc B-Biol Sci 271 537-544
  • [9] Hassanin A(2003)Mitochondrial protein phylogeny joins myriapods with chelicerates Science 299 1887-1889
  • [10] Hwang UW(2006)Phylogenetic position of the Pentastomida and (pan) crustacean relationships Mol Cells 22 314-322