Strains of Mycoplasma mycoides subsp mycoides small colony type isolated in China between 1953 and 1960 show close similarity to strains of the Africa/Australia cluster

文献类型： 外文期刊

第一作者： Li, Yuan

作者： Li, Yuan;Xin, Jiuqing;Gao, Yulong;Zhang, Jianhua;Nicholas, Robin A. J.;Lin, Yiqing

作者机构：

关键词： Contagious bovine pleuropneumonia;CBPP;Molecular characteristics;Lipoprotein;Multilocus sequence analysis;MLSA

期刊名称：VETERINARY JOURNAL （ 影响因子：2.688； 五年影响因子：2.857 ）

ISSN： 1090-0233

年卷期： 2009 年 179 卷 1 期

页码：

收录情况： SCI

摘要： In this study, six Chinese strains of Mycoplasma mycoides subsp. mycoides small colony type (MmmSC) isolated between 1953-1960 were analysed and their molecular characteristics compared to those of the African PGI and Made strains. the European C305 and 138/5 strains and the closely related caprine M. mycoides subsp. mycoides large colony type Y-goat strain. PCR amplification of long DNA fragments showed that the six Chinese strains, the PGI strain and the Y-goat strain, just like Made, did not have the 8.84 kb deletion characteristic of the European strains C305 and 138/5. In comparison, the IppB gene sequence of the six MmmSC Chinese strains was found to be 99%, homologous to that of PGI and Made, but < 93% homologous to the Y-goat sequence. The anti-rLppB antiserum reacted with PGI, Y-goat and the six Chinese strains at 67 kDa sites in Western blot, indicating that the IppB gene and its encoding protein exist in the Chinese strains. Multilocus sequence analysis (MLSA) of MmmSC strains from various regions confirmed that the Chinese strains were identical to the African and Australian cluster. This finding was further supported by the outcome of selective primer amplification. Based on these results, it is suggested that CBPP in China may have originated from Australia. (c) 2007 Elsevier Ltd. All rights reserved.

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