Concatenated mitochondrial DNA of the coccidian parasite Eimeria tenella

被引：41

作者：

Hikosaka, Kenji ^{[1
]}

Nakai, Yutaka ^{[2
]}

Watanabe, Yoh-ichi ^{[3
]}

Tachibana, Shin-Ichiro ^{[1
]}

Arisue, Nobuko ^{[4
]}

Palacpac, Nirianne Marie Q. ^{[4
]}

Toyama, Tomoko ^{[1
,4
]}

Honma, Hajime ^{[1
,5
]}

Horii, Toshihiro ^{[4
]}

Kita, Kiyoshi ^{[3
]}

Tanabe, Kazuyuki ^{[1
]}

机构：

[1] Osaka Univ, Microbial Dis Res Inst, Int Res Ctr Infect Dis, Lab Malariol, Osaka 5650871, Japan

[2] Tohoku Univ, Grad Sch Agr Sci, Lab Sustainable Environm Biol, Osaki, Miyagi 9896711, Japan

[3] Univ Tokyo, Grad Sch Med, Dept Biomed Chem, Bunkyo Ku, Tokyo 1130033, Japan

[4] Osaka Univ, Microbial Dis Res Inst, Dept Mol Protozool, Osaka 5650871, Japan

[5] Japan Soc Promot Sci, Tokyo, Japan

来源：

MITOCHONDRION | 2011年 / 11卷 / 02期

关键词：

Mitochondrion; Mitochondrial genome; Eimeria; Plasmodium; Apicomplexa; Nuclear mitochondrial DNA; MAXIMUM-LIKELIHOOD; SEQUENCE ALIGNMENT; GENOME; APICOMPLEXAN; PLASMODIUM; GENES; RNA; REPLICATION; PHYLOGENY; DIVERSITY;

D O I：

10.1016/j.mito.2010.10.003

中图分类号：

Q2 [细胞生物学];

学科分类号：

071009 ; 090102 ;

摘要：

Apicomplexan parasites of the genus Plasmodium, pathogens causing malaria, and the genera Babesia and Theileria, aetiological agents of piroplasmosis, are closely related. However, their mitochondrial (mt) genome structures are highly divergent: Plasmodium has a concatemer of 6-kb unit and Babesia/Theileria a monomer of 6.6- to 8.2-kb with terminal inverted repeats. Fragmentation of ribosomal RNA (rRNA) genes and gene arrangements are remarkably distinctive. To elucidate the evolutionary origin of this structural divergence, we determined the mt genome of Eimeria tenella, pathogens of coccidiosis in domestic fowls. Analysis revealed that E. tenella mt genome was concatemeric with similar protein-coding genes and rRNA gene fragments to Plasmodium. Copy number was 50-fold of the nuclear genome. Evolution of structural divergence in the apicomplexan mt genomes is discussed. (C) 2010 Elsevier B.V. and Mitochondria Research Society. All rights reserved.

引用

页码：273 / 278

页数：6

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