The mitochondrial genome of Priapulus caudatus Lamarck (Priapulida: Priapulidae)

被引：19

作者：

Webster, Bonnie L.

Mackenzie-Dodds, Jacqueline A.

Telford, Maximilian J.

Littlewood, D. Timothy J.

机构：

[1] Nat Hist Museum, Dept Zool, London SW7 5BD, England

[2] UCL, Dept Biol, London WC1E 6BT, England

来源：

GENE | 2007年 / 389卷 / 01期

基金：

英国惠康基金;

关键词：

mitochondrial genome; Priapulus caudatus; eedysozoa; gene order;

D O I：

10.1016/j.gene.2006.10.005

中图分类号：

Q3 [遗传学];

学科分类号：

071007 ; 090102 ;

摘要：

We sequenced and annotated the complete mitochondrial (mt) genome of the priapulid Priapulus caudatus in order to provide a source of phylogenetic characters including an assessment of gene order arrangement. The genome was 14,919 bp in its entirety with few, short non-coding regions. A number of protein-coding and tRNA genes overlapped, making the genome relatively compact. The gene order was: cox1, cox2, trnK, trnD, atp8, atp6, cox3, trnG, nad3, trnA, trnR, trnN, rrnS, trnV rrnL, trnL(yaa), trnL(nag), nad1, -trnS(nga), -cob, -nad6, trnP, -trnT, nad4L, nad4, trnH, nad5, trnF, -trnE, -trnS(nct), trnI, -trnQ, trnM, nad2, trnW -trnC, -trnY; where '-' indicates genes transcribed on the opposite strand. The gene order, although unique amongst Metazoa, shared the greatest number of gene boundaries and the longest contiguous fragments with the chelicerate Limulus polyphemus. The mt genomes of these taxa differed only by a single inversion of 18 contiguous genes bounded by rrnS and trnS(net). Other arthropods and nematodes shared fewer gene boundaries but considerably more than the most similar nonecdysozoan. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：96 / 105

页数：10

共 48 条

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