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Genetical evidence for diploidy in Phytophthora

Published online by Cambridge University Press:  14 April 2009

David S. Shaw
Affiliation:
School of Plant Biology, University College of North Wales, Bangor, North Wales
Ikram A. Khaki
Affiliation:
School of Plant Biology, University College of North Wales, Bangor, North Wales
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Summary

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A spontaneous mutant of Phytophthora drechsleri, resistant to p-fluorophenyl-alanine and two induced mutants resistant to chloramphenicol have been selected and analysed. The pattern of inheritance of the mutant phenotypes was identical and conformed to that expected in a diploid organism.

Type
Short Papers
Copyright
Copyright © Cambridge University Press 1971

References

Bryant, T. B. & Howard, K. L. (1969). Meiosis in the Oomycetes. A microspectophotometric analysis of nuclear deoxyribonucleic acid in Saprolegnia terrestis. American Journal of Botany 56, 10751083.CrossRefGoogle Scholar
Galindo, J. A. & Zentmyer, G. A. (1967). Genetical and cytological studies of Phytophthora strains pathogenic to pepper plants. Phytopathology 57, 13001304.Google Scholar
Sansome, E. (1965). Meiosis in diploid and polyploid sex organs of Phytophthora and Achlya. Cytologia 30, 103117.CrossRefGoogle Scholar
Shaw, D. S. (1967). A method of obtaining single oospore cultures of Phytophthora cactorum using live water snails. Phytopathology 57, 454.Google Scholar
Shaw, D. S. & Elliott, C. G. (1968). Streptomycin resistance and morphological variation in Phytophthora cactorum. Journal of General Microbiology 51, 7584.CrossRefGoogle ScholarPubMed
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