18种有囊尾线虫（圆线目）的5.8S核糖体DNA序列：与小杆线虫和垫刃线虫的比较

The 5.8S rDNA sequences of 18 species of bursate nematodes (order Strongylida): comparison with rhabditid and tylenchid nematodes.

作者信息

Chilton N B, Hoste H, Hung G C, Beveridge I, Gasser R B

机构信息

Department of Veterinary Science, University of Melbourne, Victoria, Australia.

出版信息

Int J Parasitol. 1997 Jan;27(1):119-24. doi: 10.1016/s0020-7519(96)00158-0.

DOI:10.1016/s0020-7519(96)00158-0

PMID:9076537

Abstract

The 5.8S rDNA sequences of 18 species of bursate nematode were 153 bp in length and had a G + C content of 47-50%. Interspecific differences in rDNA sequence among the bursate nematodes were low (0-5.2%), but the extent of the sequence differences between the parasitic bursate nematodes, a free-living rhabditid nematode and 2 species of parasitic tylenchid nematodes (12-33%) suggests that the 5.8S rRNA gene may provide useful phylogenetic information with respect to the relationships of the different orders within the phylum Nematoda.

摘要

18种有囊尾线虫的5.8S rDNA序列长度为153 bp，G + C含量为47 - 50%。有囊尾线虫之间rDNA序列的种间差异较低（0 - 5.2%），但寄生性有囊尾线虫、一种自由生活的小杆线虫和两种寄生性垫刃线虫之间的序列差异程度（12 - 33%）表明，5.8S rRNA基因可能为线虫门内不同目之间的关系提供有用的系统发育信息。