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Genetic studies of the b incompatability locus of Ustilago maydis

Published online by Cambridge University Press:  14 April 2009

John E. Puhalla
John E. Puhalla
Affiliation:
Department of Genetics, The Connecticut Agricultural Experiment Station, New Haven, Connecticut, U.S.A.
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Summary

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The b locus of Ustilago maydis is both an incompatibility locus and a pathogenicity locus. There are several different b factors, and they are randomly distributed and equally frequent in the natural population. A sample of 62 lines contained 18 b groups and permitted an estimate of no more than 25 b groups in the natural population. All lines within the same b group are indistinguishable in their mating behaviour. No linkage was detected between b and any of the four biochemical markers tested. No intrafactor recombinants at b were found among more than 6700 progeny. Differences in degree of pathogenicity between solopathogenic diploids and comparable haploid by haploid crosses were detected.

Type
Short Papers
Information
Genetics Research , Volume 16 , Issue 2 , October 1970 , pp. 229 - 232
Copyright
Copyright © Cambridge University Press 1970

References

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