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Heterozygous diploid analyses via the parasexual cycle and a cytoplasmic pattern of inheritance in Verticillium spp.

Published online by Cambridge University Press:  14 April 2009

Milton A. Typas  and
James B. Heale
Milton A. Typas
Affiliation:
Biology Department, University of Athens, Panepistemioupolis, Kouponia TT 621, Athens, Greece
James B. Heale
Affiliation:
Biology Department, Queen Elizabeth College, London W8 7AH, England
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Abstract

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Combining data from mitotic crossing over in, and haploidization of, heterozygous diploid strains, 33 markers have been mapped successfully in Verticillium spp. One marker (Hyl), which determines the absence of darkly pigmented resting structures in many stable hyaline strains, showed an irregular segregation. In view of previous evidence from acriflavine treatment and heterokaryon analyses in the fungus, this further substantiated indications of a cytoplasmic pattern of inheritance for this marker. The phenotypic expression of dark pigment genes showing nuclear inheritance, such as Sot., depends upon the cytoplasmically determined (Hyl+) presence of resting structures.

Type
Research Article
Information
Genetics Research , Volume 31 , Issue 2 , April 1978 , pp. 131 - 144
Copyright
Copyright © Cambridge University Press 1978

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