Abstracts - faqs.org

Abstracts

Biological sciences

Search abstracts:
Abstracts » Biological sciences

The isolation of mutagen-sensitive nuv mutants of Aspergillus nidulans and their effects on mitotic recombination

Article Abstract:

Twenty-three mutants that were hypersensitive to N-methyl-N'-nitro-N-nitrosoguanidine (MNNG) and 4-nitroquinoline-1-oxide (4-NQO) were isolated and studied for their effects on spontaneous intragenic recombination. Ten of these had no significant effects on recombination. Reactions to different concentrations of MNNG and 4-NQO were varied. Most of the nuv mutations were fully recessive and only a few were semidominant. Six nonallelic loci were identified in trans complementation analysis of seven of these mutations.

Author: Osman, Fekret, Tomsett, Brian, Strike, Peter
Publisher: Genetics Society of America
Publication Name: Genetics
Subject: Biological sciences
ISSN: 0016-6731
Year: 1993

User Contributions:

Comment about this article or add new information about this topic:

CAPTCHA


Effects of mutagen-sensitive mus mutations on spontaneous mitotic recombination in Aspergillus

Article Abstract:

The effects of eight mutations of the mus locus of Aspergillus nidulans on mitotic recombination were studied. Two of the mutations increased, while another two decreased inter- and intragenic recombination. The musO mutation increased only intragenic recombination. The product of the musL mutation appeared necessary for recombination and its absence resulted in chromosome loss. The behavior of some mutants suggested differential effects on the related events of mitotic gene conversion and crossing over.

Author: Ping Zhao, Kafer, Etta
Publisher: Genetics Society of America
Publication Name: Genetics
Subject: Biological sciences
ISSN: 0016-6731
Year: 1992

User Contributions:

Comment about this article or add new information about this topic:

CAPTCHA


nuvA, an Aspergillus nidulans gene involved in DNA repair and recombination, is a homologue of Saccharomyces cerevisiae RAD18 and Neurospora crassa uvs-2

Article Abstract:

The nuv A gene plays an important role in DNA repair and recombination in Aspergillus nidulans. The cloning of the nuv A gene is undertaken by complementing it with the nuvA11 phenotype. The isolation of the nuv cDNA sequence is described and the location of the nuv A gene on chromosome IV is determined. Results indicate that the nuv A gene is a homologue of the known DNA repair proteins uvs-2 in Neurospora crassa and RAD18 in Saccharomyces cerevisiae.

Author: Tomsett, Brian, Strike, Peter, Jones, Gary, Iwanejko, Lesley, Cotton, Catherine
Publisher: Society for General Microbiology
Publication Name: Microbiology
Subject: Biological sciences
ISSN: 1350-0872
Year: 1996
DNA repair, Saccharomyces, Neurospora

User Contributions:

Comment about this article or add new information about this topic:

CAPTCHA


Subjects list: Research, Genetic aspects, Aspergillus, Genetic recombination, Mutation (Biology), Mutation, Mitosis
Similar abstracts:
  • Abstracts: Seventeen complementation groups of mutations decreasing meitotic recombination in Schizosaccharomyces pombe. Meiotically induced rec7 and rec8 genes of Schizosaccharomyces pombe
  • Abstracts: In situ PCR for visualization of microscale distribution of specific genes and gene products in prokaryotic communities
  • Abstracts: S elements: a family of Tc1-like transposons in the genome of Drosophila melanogaster. Genetic instability in Drosophila melanogaster mediated by hobo transposableelements
  • Abstracts: Does hybrid lethality depend on sex or genotype? Dominance and Haldane's rule. Meiotic drive and unisexual hybrid sterility: a comment
This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.
Some parts © 2023 Advameg, Inc.