Chromosomal polymorphism of Acremonium chrysogenum strains producing cephalosporin C

Chromosomal polymorphism of Acremonium chrysogenum strains producing cephalosporin C Using pulse electrophoresis in controlled homogenous electric field we performed molecular karyotyping of cephalosporin C-producing industrial and laboratory strains of Acremonium chrysogenum. Differences in size of several chromosomes of high-producing strain CB26/8 compared to the wild-type strain ATCC 11550 were revealed. It was shown that chromosomal polymorphism in the high-producing strain was not associated with alteration of localization and copy number of cephalosporin C (CPC) biosynthesis and transport genes. A cluster of “early” CPC biosynthesis genes is located on chromosome VI (4.4 Mb); a cluster of the “late genes”, on chromosome II (2.3 Mb). Both clusters are presented as a single copy per A. chrysogenum genome in the wild-type and in CB26/8 high-producing strains. Based on comparative analysis of laboratory and industrial CPC producers, a karyotype scheme for A. chrysogenum strains of various origins was designed. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Genetics Springer Journals

Chromosomal polymorphism of Acremonium chrysogenum strains producing cephalosporin C

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Publisher
SP MAIK Nauka/Interperiodica
Copyright
Copyright © 2012 by Pleiades Publishing, Ltd.
Subject
Biomedicine; Animal Genetics and Genomics; Microbial Genetics and Genomics; Human Genetics
ISSN
1022-7954
eISSN
1608-3369
D.O.I.
10.1134/S1022795412050067
Publisher site
See Article on Publisher Site

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