Silent nucleotide polymorphisms and a phylogeny for Mycobacterium tuberculosis.

Silent nucleotide polymorphisms and a phylogeny for Mycobacterium tuberculosis.
复制标题

DOI:
10.3201/eid1009.040046
复制
发表时间:
2004-09
影响因子:
11.8
通讯作者:
Drobniewski F
Drobniewski F
中科院分区:
医学2区
文献类型:
--
作者:
Baker L;Brown T;Maiden MC;Drobniewski F

文献摘要

参考文献

被引文献

相似文献

基因沉默核苷酸多态性的种群多样性产生了结核分枝杆菌的统一系统发育。每年导致200万人死亡的结核分枝杆菌的系统发育和进化仍有许多未知之处。使用基于群体的方法分析染色体周围的多个位点,我们证明了与抗菌药物耐药性相关的基因的中性遗传变异具有足够的变异,可以构建一个健壮的结核分枝杆菌系统发育树。数据描述了一个克隆群体,至少有四个不同的结核分枝杆菌谱系,与牛分枝杆菌密切相关。这些血统在地理上有很强的联系。经证实引起耐药的核苷酸取代分布在整个树中,而与耐药无关的非同义碱基取代分布有限。该系统发育结构与先前描述的结核分枝杆菌菌株的基因型和表型分组一致,为结核分枝杆菌种群的流行病学和进化分析提供了统一的框架。
Population diversity of genetically silent nucleotide polymorphisms produces a unifying phylogeny for Mycobacterium tuberculosis. Much remains unknown of the phylogeny and evolution of Mycobacterium tuberculosis, an organism that kills 2 million people annually. Using a population-based approach that analyzes multiple loci around the chromosome, we demonstrate that neutral genetic variation in genes associated with antimicrobial drug resistance has sufficient variation to construct a robust phylogenetic tree for M. tuberculosis. The data describe a clonal population with a minimum of four distinct M. tuberculosis lineages, closely related to M. bovis. The lineages are strongly geographically associated. Nucleotide substitutions proven to cause drug resistance are distributed throughout the tree, whereas nonsynonymous base substitutions unrelated to drug resistance have a restricted distribution. The phylogenetic structure is concordant with all the previously described genotypic and phenotypic groupings of M. tuberculosis strains and provides a unifying framework for both epidemiologic and evolutionary analysis of M. tuberculosis populations.
DOI: 10.1128/jcm.35.4.907-914.1997
发表时间: 1997-04-01
影响因子: 9.4
作者:
Kamerbeek, J;Schouls, L;vanEmbden, J
通讯作者: vanEmbden, J
DOI: 10.1099/00221287-144-5-1189
发表时间: 1998-05-01
期刊: MICROBIOLOGY-UK
影响因子: --
作者:
Frothingham, R;Meeker-O'Connell, WA
通讯作者: Meeker-O'Connell, WA
DOI: 10.1093/bioinformatics/17.12.1244
发表时间: 2001-12-01
期刊: BIOINFORMATICS
影响因子: 5.8
作者:
Kumar, S;Tamura, K;Nei, M
通讯作者: Nei, M
DOI: 10.1111/j.1365-2958.1993.tb00924.x
发表时间: 1993-11-01
影响因子: 3.6
作者:
NAIR, J;ROUSE, DA;MORRIS, SL
通讯作者: MORRIS, SL