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链霉菌染色体结构的遗传不稳定性及其可能的进化影响。

Genetic instability and its possible evolutionary implications on the chromosomal structure of Streptomyces.

作者信息

Fischer G, Kyriacou A, Decaris B, Leblond P

机构信息

Unité associée INRA 952, Faculté des Sciences, Université Henri-Poincaré-Nancy I, Vandoeuvre-lès-Nancy, France.

出版信息

Biochimie. 1997 Oct;79(9-10):555-8. doi: 10.1016/s0300-9084(97)82003-2.

DOI:10.1016/s0300-9084(97)82003-2
PMID:9466692
Abstract

Recent progress in the understanding of the chromosomal rearrangements in Streptomyces has allowed us to envisage the possible involvement of genetic instability in the evolution of the chromosomal structure. The characterization of recombinational events in the terminal parts of the S ambofaciens chromosome, as well as the observation by other groups that linear plasmids and chromosomes are able to interact, would provide an explanation for the very high levels of polymorphism seen in the terminal inverted repeats of different strains of Streptomyces.

摘要

对链霉菌染色体重排的认识取得的最新进展,使我们能够设想遗传不稳定性可能参与了染色体结构的进化。对产二素链霉菌染色体末端重组事件的表征,以及其他研究小组观察到的线性质粒和染色体能够相互作用,这将为在不同链霉菌菌株的末端反向重复序列中观察到的非常高的多态性水平提供一种解释。

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Genetic instability and its possible evolutionary implications on the chromosomal structure of Streptomyces.链霉菌染色体结构的遗传不稳定性及其可能的进化影响。
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引用本文的文献

1
Intraspecific variability of the terminal inverted repeats of the linear chromosome of Streptomyces ambofaciens.产二素链霉菌线性染色体末端反向重复序列的种内变异性。
J Bacteriol. 2006 Sep;188(18):6599-610. doi: 10.1128/JB.00734-06.
2
Spatial variation in Streptomyces genetic composition and diversity in a prairie soil.草原土壤中链霉菌遗传组成和多样性的空间变异
Microb Ecol. 2004 Nov;48(4):601-12. doi: 10.1007/s00248-004-0031-9. Epub 2004 Oct 28.
3
Chromosomal arm replacement generates a high level of intraspecific polymorphism in the terminal inverted repeats of the linear chromosomal DNA of Streptomyces ambofaciens.
染色体臂置换在产二素链霉菌线性染色体DNA的末端反向重复序列中产生了高水平的种内多态性。
Proc Natl Acad Sci U S A. 1998 Nov 24;95(24):14296-301. doi: 10.1073/pnas.95.24.14296.