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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1996-9-20
pubmed:abstractText
The mobility of mitochondrial DNA (mtDNA) in pulsed-field gel electrophoresis (PFGE) and its appearance in moving pictures from fluorescence microscopy were used to investigate the mitochondrial genome structure for five Pichia and Williopsis strains of yeast. An apocytochrome b-gene hybridization probe identified only linear mtDNA molecules for each strain when total cellular DNA was fractionated by PFGE. Most of the mass of DNA isolated from mitochondria for one linear-mapping and one circular-mapping mitochondrial genome was found in linear molecules much larger than the genome size of 50 kb; some molecules were as long as 1500 kb, but only a trace amount of apparently circular mtDNA was found for the strain with the circular-mapping genome. Probes for both the apocytochrome-b and mitochondrial small rRNA subunit genes hybridized strongly to mtDNA of approximately 50-100 kb, but weakly to the larger DNA from mitochondria of these two strains. For the four linear-mapping strains, PFGE revealed two or three distinct bands of linear mtDNA, larger than the genome size, within a smear of approximately 50-100 kb, but a smear without bands was found for the circular-mapping strain.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0172-8083
pubmed:author
pubmed:issnType
Print
pubmed:volume
30
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
3-11
pubmed:dateRevised
2000-12-18
pubmed:meshHeading
pubmed:year
1996
pubmed:articleTitle
Moving pictures and pulsed-field gel electrophoresis show only linear mitochondrial DNA molecules from yeasts with linear-mapping and circular-mapping mitochondrial genomes.
pubmed:affiliation
Department of Botany, Box 355325, University of Washington,Seattle, WA 98195-5325, USA.
pubmed:publicationType
Journal Article