Genetic controls of recombination I. The Recombination-2 gene of Neurospora crassa
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چکیده
منابع مشابه
Polarized recombination and fine structure within the me-2 gene of Neurospora crassa.
HIS study of interallelic recombination was originally initiated to compare Tthe recombination and complementation maps of the me-2 gene of Neurospora crassa (MURRAY 1960b). Methionine-independent progeny from crosses between me-2 alleles were classified with respect to the markers which were present on both sides of the me-2 gene. One of the two classes of methionine prototrophs having markers...
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Populations in heterotic equilibrium show a greater percentage decrease than populations in mutational equilibrium, but the difference is very small for rare genes. Mortality and morbidity data on inbred offspring from consanguineous marriages cannot distinguish genes in one type of equilibrium from those in another. The current concept of genetic load is based on artefacts rather than on inher...
متن کاملGenetic control of allelic recombination at the histidine-3 locus of Neurospora crassa.
T H E histidine-3 (his-3) locus of Neurospora crassa has aroused considerable interest because it 'controls not only the last step but also at least two early reactions in the biosynthesis of histidine (AHMED, CASE and GILES 1964; CATCHESIDE 1960, 1965). Complementation and genetic analyses of his-3 mutants, showing that noncomplemeiiting mutants, lacking all the three functions, appeared to be...
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The sulfur regulatory circuit of the filamentous fungus, Neurospora crassa, consists of a set of unlinked structural genes which encode sulfur catabolic and two major regulatory genes which govern their expression. The cys-3 regulatory gene encode a transacting regulatory protein which activates the expression of cys-14 and ars, whereas the other regulatory genes Scon-l and Scon-2 appear to...
متن کاملGene conversion alone accounts for more than 90% of recombination events at the am locus of Neurospora crassa.
We have used closely flanking molecular markers located approximately 4 kb distal and 6 kb proximal of the am locus to investigate the incidence of crossover events associated with the generation of prototrophic recombinants in a cross heteroallelic am1 am6. Ninety-three percent of prototrophs were generated by events that did not recombine the molecular markers, indicating that simple conversi...
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ژورنال
عنوان ژورنال: Heredity
سال: 1966
ISSN: 0018-067X,1365-2540
DOI: 10.1038/hdy.1966.47