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Non-selfing mutants from selfing (Het) strains of Physarum polycephalum

  • N. K. Honey (a1), R. T. M. Poulter (a1) and R. J. Aston (a1)

Summary

Plasmodial formation in the Myxomycete Physarum polycephalum is under heterothallic control by a mating type (mt) locus. In natural isolates only amoebae with different mt alleles are able to cross to form diploid plasmodia. A class of mutants isolated from heterothallic amoebae, together with the variant strain CL, is able to form plasmodia in pure clones, designated as selfing. Non-selfing mutants have been isolated from CL and from other selfing amoebae.

This paper reports the isolation and analysis of 64 non-selfing derivatives (designated Npf) from seven selfing (Het) strains. The Npf mutants could be grouped into eight classes on the basis of their crossing and complementation patterns. The possible significance of these mutants is discussed.

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References

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Non-selfing mutants from selfing (Het) strains of Physarum polycephalum

  • N. K. Honey (a1), R. T. M. Poulter (a1) and R. J. Aston (a1)

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