𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Ribosomal DNA inheritance and recombination in Neurospora crassa

✍ Scribed by Russell, Peter J. ;Petersen, Richard C. ;Wagner, Sheryl

Publisher
Springer
Year
1988
Tongue
English
Weight
340 KB
Volume
211
Category
Article
ISSN
0026-8925

No coin nor oath required. For personal study only.

✦ Synopsis

The genetic segregation of ribosomal DNA (rDNA) in Neurospora crassa was analyzed by exploiting restriction fragment length polymorphisms in the nontranscribed spacer (NTS) sequences of nine laboratory wild-type strains and wild-collected strains. In an analysis of random spore progeny from seven crosses, and of ordered tetrads from two of those crosses the rDNA was shown to be inherited in a simple, stable Mendelian fashion, exhibiting an approximately 1 : 1 ratio of the two parental rDNA types. No meiotic recombinants were detected among the progeny, indicating that non-sister-chromatid crossing over is highly suppressed in the rDNA region. The basis for this suppression of meiotic recombination is not known.

πŸ“œ SIMILAR VOLUMES

Transcription of repetitive DNA in Neuro
Transcription of repetitive DNA in Neurospora crassa
✍ Dutta, S. K. ;Chaudhuri, R. K. πŸ“‚ Article πŸ“… 1975 πŸ› Springer 🌐 English βš– 409 KB

Repeated DNA sequences of Neurospora crassa were isolated and characterized. Approximately 10-12% of N. crassa DNA sequence were repeated, of which 7.3% were found to be transcribed in mid-log phase of mycelial growth as measured by DNA:RNA hybridization. It is suggested that part of repetitive DNA

Ribosomal RNA genes of Neurospora crassa
Ribosomal RNA genes of Neurospora crassa: Multiple copies and specificities
✍ Dutta, S. K. ;Williams, N. P. ;Mukhopadhyay, D. K. πŸ“‚ Article πŸ“… 1983 πŸ› Springer 🌐 English βš– 435 KB

Ribosomal RNA genes were isolated from the germinated conidial and mycelial cells of N. crassa by repeated cycles of 3H-DNA:rRNA reactions followed by hydroxyapatite chromatography. Specificity of multiple copies of those rDNAs with respect to N. crassa cell types was studied. The fraction of N. cra

Influence of edeine on intergenic and in
Influence of edeine on intergenic and interallelic recombination in Neurospora crassa
✍ Teles Grilo, Maria Leonor ;KlingmΓΌller, Walter πŸ“‚ Article πŸ“… 1975 πŸ› Springer 🌐 English βš– 491 KB

The effect of edeine and the mutation edr-2 to edeine resistance on genetic recombination in Neurospora crassa was investigated. For this purpose crosses between pairs of edeine sensitive and edeine resistant strains respectively were set up without or in the presence of the drug (0-750 microg/ml).

Differential transcription of nonrepeate
Differential transcription of nonrepeated DNAs in Neurospora crassa mutants
✍ Dutta, S. K. ;Chaudhuri, R. K. πŸ“‚ Article πŸ“… 1978 πŸ› Springer 🌐 English βš– 560 KB

Transcriptional properties of an "albino" mutant, a "slime" mutant and a wild type strain of Neurospora crassa have been compared by quantitative estimates of DNA:RNA hybridization. The RNAs isolated from these strains were incubated with 32P-DNA of the wild type strain. The DNA:RNA hybrids were iso

Nucleotide degrading enzymes in Neurospo
Nucleotide degrading enzymes in Neurospora crassa
✍ Dr. A. K. Mattoo; Zarna M. Shah πŸ“‚ Article πŸ“… 2007 πŸ› John Wiley and Sons 🌐 English βš– 860 KB

## Abstract Considerable amounts of GTP, GMP, adenosine, guanine, and adenine accumulated in __Neurospora crassa__ when a culture grown on low phosphate (0.01%) medium was transferred to a high phosphate (1%) medium. The levels of alkaline phosphatase, nucleotidase, and nucleosidase decreased by 2.