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Induced chromosome rearrangements and morphologic variation in Candida albicans.

作者信息

Barton R C, Scherer S

机构信息

Human Genome Center, Lawrence Berkeley Laboratory, Berkeley, California 94720.

出版信息

J Bacteriol. 1994 Feb;176(3):756-63. doi: 10.1128/jb.176.3.756-763.1994.

DOI:10.1128/jb.176.3.756-763.1994
PMID:8300529
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC205113/
Abstract

We have isolated a mutant of Candida albicans that switches between colony morphologies at high frequencies in a strain with several genetic markers. This strain, 1183, has an altered karyotype with two extra chromosomes. The 1183 karyotype is unstable upon passage. Using DNA transformation with the URA3 gene flanked by sequences from the C. albicans repeat sequence 27A, we have marked individual chromosomes of 1183 and 1161, a related smooth, stable strain. Many transformants contained one or more extra chromosomes, ranging in size from 150 kb to 2.1 Mb. Most were less than 800 kb and appeared to be fragments of a single chromosome. All fragments tested derive from one of the two smallest chromosomes. Six of 13 fragments contained the URA3 gene. In some cases, URA3 was located at the end of a fragment with adjacent telomere repeats. The integrated copy of URA3 was unstable in some 1183 transformants. Our results suggest that 1183 has a mutation affecting genomic stability. A connection between karyotypic changes and morphologic variation has been suggested from studies of several C. albicans strains; however, we find that gross karyotypic and morphological changes are separable processes.

摘要
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/54f1/205113/879b3511086f/jbacter00021-0224-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/54f1/205113/48c32a9b3536/jbacter00021-0219-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/54f1/205113/70b83128ca2f/jbacter00021-0220-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/54f1/205113/a8b64d612292/jbacter00021-0221-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/54f1/205113/d60c77c0b3cb/jbacter00021-0222-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/54f1/205113/3d25960ae238/jbacter00021-0223-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/54f1/205113/879b3511086f/jbacter00021-0224-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/54f1/205113/48c32a9b3536/jbacter00021-0219-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/54f1/205113/70b83128ca2f/jbacter00021-0220-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/54f1/205113/a8b64d612292/jbacter00021-0221-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/54f1/205113/d60c77c0b3cb/jbacter00021-0222-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/54f1/205113/3d25960ae238/jbacter00021-0223-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/54f1/205113/879b3511086f/jbacter00021-0224-a.jpg

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本文引用的文献

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