DNA homologies among heterothallic species of Neurospora
Highly purified DNA from three reference strains representing authentic heterothallic species: Neurospora crassa, Neurospora intermedia and Neurospora sitophila, and from several unidentified Neurospora isolates was characterized by spectrophotometry, and by DNA:DNA reassociation using hydroxyapatite chromatography. These known heterothallic species and isolates were closely related on the basis of morphology, physiology and DNA characteristics such as base composition, thermal denaturation profiles and occurrence of repeated DNA sequences. They were, however, distinguishable by DNA:DNA homology studies. It was concluded that N. crassa is closer to N. intermedia than to N. sitophila. Neurospora sp. Gianjor, a 4-spored pseudohomothallic species, was significantly different from N. crassa and N. intermedia, but had greater homology with N. sitophila. All of the Neurospora isolates which crossed readily with N. crassa, and produced 95% black ascospores, were indistinguishable from that species by DNA homology studies. It was possible to assign some of the unidentified isolates to species based on DNA homology studies.
- Research Organization:
- Howard Univ., Washington, DC
- OSTI ID:
- 5301337
- Journal Information:
- Mycologia; (United States), Journal Name: Mycologia; (United States) Vol. 68:2; ISSN MYCOA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Polymorphism in the ribosomal RNA genes in three heterothallic species of Neurospora
Heterothallic species of neurospora are distinguishable by restriction analysis of their nuclear rDNA sequences
DNA homologies of ribosomal RNA genes of Neurospora species
Journal Article
·
Sat Dec 31 23:00:00 EST 1983
· Genetics; (United States)
·
OSTI ID:7065548
Heterothallic species of neurospora are distinguishable by restriction analysis of their nuclear rDNA sequences
Journal Article
·
Fri Dec 31 23:00:00 EST 1982
· Neurospora Newsl.; (United States)
·
OSTI ID:5910369
DNA homologies of ribosomal RNA genes of Neurospora species
Journal Article
·
Mon Dec 31 23:00:00 EST 1979
· Neurospora Newsl.; (United States)
·
OSTI ID:5632158
Related Subjects
550201 -- Biochemistry-- Tracer Techniques
550401* -- Genetics-- Tracer Techniques
550701 -- Microbiology-- Tracer Techniques
59 BASIC BIOLOGICAL SCIENCES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BIOLOGICAL EVOLUTION
BIOLOGICAL VARIABILITY
BIOLOGY
CHROMATOGRAPHY
COMPARATIVE EVALUATIONS
DAYS LIVING RADIOISOTOPES
DNA
FUNGI
ISOTOPE APPLICATIONS
ISOTOPES
LIGHT NUCLEI
MORPHOLOGY
NEUROSPORA
NUCLEI
NUCLEIC ACIDS
ODD-ODD NUCLEI
ORGANIC COMPOUNDS
PHOSPHORUS 32
PHOSPHORUS ISOTOPES
PHYSIOLOGY
PLANTS
PROTEIN DENATURATION
RADIOISOTOPES
SEPARATION PROCESSES
SPECTROSCOPY
TAXONOMY
TRACER TECHNIQUES
550401* -- Genetics-- Tracer Techniques
550701 -- Microbiology-- Tracer Techniques
59 BASIC BIOLOGICAL SCIENCES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BIOLOGICAL EVOLUTION
BIOLOGICAL VARIABILITY
BIOLOGY
CHROMATOGRAPHY
COMPARATIVE EVALUATIONS
DAYS LIVING RADIOISOTOPES
DNA
FUNGI
ISOTOPE APPLICATIONS
ISOTOPES
LIGHT NUCLEI
MORPHOLOGY
NEUROSPORA
NUCLEI
NUCLEIC ACIDS
ODD-ODD NUCLEI
ORGANIC COMPOUNDS
PHOSPHORUS 32
PHOSPHORUS ISOTOPES
PHYSIOLOGY
PLANTS
PROTEIN DENATURATION
RADIOISOTOPES
SEPARATION PROCESSES
SPECTROSCOPY
TAXONOMY
TRACER TECHNIQUES