Examination of the 16S–23S rRNA Intergenic Spacer Sequences of Candidatus Mycoplasma haemobos and Mycoplasma haemofelis

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概要

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• The intergenic spacer region between the 16S and 23S rRNA genes of mycoplasmas has been used for a genetic marker for identification of the species. Here we show the intergenic spacer regions of two hemotropic mycoplasmas, Mycoplasma haemofelis and Candidatus Mycoplasma haemobos (synonym: C. M. haemobovis) are also useful for classification of this particular group of mycoplasms. The spacer region of M. haemofelis and C. M. haemobos consisted of 209 and 210 base pairs, respectively, and both lacked the spacer tRNA genes. Phylogenetic analysis suggested a monophyletic relationship among hemoplasmas and M. fastidiosum. A hypothetical secondary structure predicted in the spacer regions tentatively assigned the boxA and boxB motifs peculiar to the members of the genus Mycoplasma. M. haemofelis and C. M. haemobos possessed a stem-loop structure in common, despite the presence of a palindromic nucleotide substitution in the stem region.

著者

• Suzuki Jin

  Department Of Food Safety Tokyo Metropolitan Institute Of Public Health

• Harasawa Ryo

  Department Of Veterinary Medicine Faculty Of Agriculture Iwate University

• SASAOKA Fumina

  Department of Veterinary Microbiology, Faculty of Agriculture, Iwate University

• WATANABE Yusaku

  Department of Veterinary Medicine, Faculty of Agriculture, Iwate University, Morioka 020–8550, Japan

• FUJIHARA Masatoshi

  Department of Veterinary Medicine, Faculty of Agriculture, Iwate University, Morioka 020–8550, Japan

• NAGAI Kazuya

  Cryobiofrontier Research Center, Faculty of Agriculture, Iwate University

• SASAOKA Fumina

  Department of Veterinary Medicine, Faculty of Agriculture, Iwate University, Morioka 020–8550, Japan

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