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Electrophoretic karyotype of Mucor circinelloides
1Gedeon Richter Chemical Works, Budapest, Hungary.
Current Genetics
|July 1, 1994
Summary
This study used contour-clamped homogeneous electric field (CHEF) gel electrophoresis to analyze the genome sizes of two Mucor circinelloides strains, revealing distinct chromosomal DNA band patterns and estimating total genome sizes.
Area of Science:
- Mycology
- Molecular Biology
- Genetics
Background:
- Mucor circinelloides is a fungus with agricultural and clinical relevance.
- Understanding the genome structure of fungal species is crucial for genetic studies and biotechnological applications.
Purpose of the Study:
- To determine the electrophoretic karyotypes of two Mucor circinelloides strains.
- To estimate the genome sizes of these strains.
- To assign the leuA gene to a specific chromosome.
Main Methods:
- Contour-clamped homogeneous electric field (CHEF) gel electrophoresis was employed to separate large DNA molecules.
- Hybridisation techniques were utilized for gene mapping.
Main Results:
- Electrophoretic karyotypes showed eight distinct bands for M. circinelloides f. lusitanicus and four bands for M. circinelloides f. gryseo-cyanus.
- Estimated genome sizes were 38.7 Mb for f. lusitanicus and 32.6 Mb for f. gryseo-cyanus.
- The leuA gene was successfully assigned to a chromosome.
Conclusions:
- CHEF gel electrophoresis is effective for resolving chromosomal DNA in Mucor circinelloides.
- The two strains exhibit significant differences in their karyotypes and genome sizes.
- This research provides foundational genomic data for Mucor circinelloides.