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The structure of the incompatibility factors of Schizophyllum commune: Constitution of the three classes of B factors

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Summary

The B factors of Schizophyllum commune are of 3 classes: The high recombining class I has 7 α alleles and 7 β alleles; the low recombining classes are class II with 7 α allels and probably 2β′ alleles and class III with probably 2 α′ (or also 2β′) alleles and 7 β allels. A fourth hypothetical class (α′-β′) was not found and either does not exist or is indistinguishable from class III by the tests employed. The α′ and β′ alleles differ from α and β by either (a) mutations affecting both mating specificity and recombination frequency, or (b) deletions involving most of the B region.

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Authors and Affiliations

  1. Laboratory of Genetics, The Hebrew University, Jerusalem, Israel

    Yair Parag

  2. Department of Botany, University of Tel Aviv, Tel Aviv, Israel

    Yigal Koltin

Authors
  1. Yair Parag
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  2. Yigal Koltin
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Additional information

Communicated by F. Kaudewitz

The research was supported by a grant from the Atomic Energy Commission of the U.S. No. (30-1)-3875 and was performed at the Biological Laboratories, Harvard University, Cambridge, Mass., U.S.A.

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Parag, Y., Koltin, Y. The structure of the incompatibility factors of Schizophyllum commune: Constitution of the three classes of B factors. Molec. Gen. Genet. 112, 43–48 (1971). https://doi.org/10.1007/BF00266931

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  • DOI: https://doi.org/10.1007/BF00266931

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