The genetic control of recombination in two chromosomal regions was studied in dikaryons of Schizophyllum commune with joint control of recombination in the A and B factors. The role of the controlled regions in the determination of their recombination frequencies was studied by substituting one or the other or both by homologous segments. The B factor was shown to affect both its own and the A factors' recombination frequency. A model of genetic control of recombination in several regions is proposed. The model is based on identical recognition sites within the jointly controlled segments. It is consistent with the fact that jointly-controlled segments can show either negative or positive correlation between their recombination frequencies.
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References
CatchesideD. G. & B.Austin (1969). The control of allelic recombination at histidine loci in Neuospora crassa. Amer. J. Bot. 56: 685–690.
JessopA. P. & D. G.Catcheside (1965). Interallelic recombination at the his- i locus in Neurospora crassa and its genetic control. Heredity 20: 237–256.
JhaK. K. (1967). Genetic control of allelic recombination at the histidine-3 locus of Neurospora crassa. Genetics 57: 865–873.
JhaK. K. (1969). Genetic factors affecting allelic recombination at the histidine-3 locus of Neurospora crassa. Molec. Gen. Genetics 105: 30–37.
Schaap, T. & G. Simchen (1971). Genetic control of recombination affecting mating factors in a population of Schizophyllum, and its relation to inbreeding. Genetics, May 1971, in press.
SimchenG. & J.Stamberg (1969a). Fine and coarse controls of genetic recombination. Nature 222: 329–332.
SimchenG. & J.Stamberg (1969b). Genetic control of recombination in Schizophyllum commune: Specific and independent regulation of adjacent and non-adjacent chromosomal regions. Heredity 24: 369–381.
SmithB. R. (1966). Genetic controls of recombination. 1. The recombination-2 gene of Neuropora crassa. Heredity 21: 481–498.
StambergJ. (1968). Two independent gene systems controlling recombination in Schizophyllum commune. Molec. Gen. Genetics 102: 221–228.
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Schaap, T. Recognition sites and coordinate control of recombination in Schizophyllum . Genetica 42, 219–230 (1971). https://doi.org/10.1007/BF00121904
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DOI: https://doi.org/10.1007/BF00121904