Development and verification of fingerprinting probes for Candida glabrata.
Since Candida glabrata has emerged as one of the most common Candida pathogens, DNA probes have been developed which fulfil the requirements for effective fingerprinting. Using a screen for complex genomic fragments containing moderately repetitive sequences, seven DNA probes were cloned which generate complex Southern blot hybridization patterns with EcoRI-digested C. glabrata DNA. All of the probes are species-specific and the majority cross-hybridize to varying degrees. The capacity of two of the probes, Cg6 and Cg12, to measure genetic distance between independent isolates is verified by comparing clustering in dendrograms based on similarity coefficients computed between all pairs of 39 independent isolates fingerprinted with Cg6, Cg12 and randomly amplified polymorphic DNA. The capacity of the probes Cg6 and Cg12 to assess microevolution in clonal populations of infecting C. glabrata over time is also demonstrated. These probes can now be used in large computer-assisted epidemiological studies.
Lockhart
Shawn R
SR
Department of Biological Sciences and Pathology.
Joly
Sophie
S
Department of Biological Sciences and Pathology.
Pujol
Claude
C
Department of Biological Sciences and Pathology.
Sobel
Jack D
JD
Department of Biological Sciences and Pathology.
Pfaller
Michael A
MA
University of Iowa, Iowa City, IA 52242, USA.
Sol
David R
DR
Department of Biological Sciences and Pathology.
D017088:AIDS-Related Opportunistic Infections / Q000382:microbiology; D015139:Blotting, Southern / Q000379:methods; D002175:Candida / Q000145:classification / Q000235:genetics* / Q000302:isolation & purification; D002177:Candidiasis / Q000382:microbiology; D002874:Chromosome Mapping; D016172:DNA Fingerprinting / Q000379:methods; D015342:DNA Probes; D015246:Deoxyribonuclease EcoRI; D005260:Female; D006801:Humans; D010802:Phylogeny; D019105:Random Amplified Polymorphic DNA Technique; D015203:Reproducibility of Results
D015342:DNA Probes; D015246:Deoxyribonuclease EcoRI