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Sexuality and interactions of monokaryotic and dikaryotic mycelia of Ganoderma boninense

Published online by Cambridge University Press:  18 December 2002

Carmel A. PILOTTI ,
Frank R. SANDERSON  and
Elizabeth A. B. AITKEN
Carmel A. PILOTTI
Affiliation:
PNG Oil Palm Research Association, P.O. Box 36, Alotau, Milne Bay Province, Papua New Guinea. E-mail: [email protected]
Frank R. SANDERSON
Affiliation:
PNG Oil Palm Research Association, P.O. Box 36, Alotau, Milne Bay Province, Papua New Guinea. E-mail: [email protected]
Elizabeth A. B. AITKEN
Affiliation:
Department of Botany, The University of Queensland, St Lucia, 4072 Queensland; Australia.
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Abstract

Ganoderma boninense was determined to be heterothallic and tetrapolar with multiple alleles at both mating type loci. Mycelial interactions amongst siblings were assessed to determine if closely related isolates of G. boninense exhibited vegetative incompatibility. Interactions amongst monokaryotic and dikaryotic mycelia generally grouped into four categories ranging from strong antagonism to the absence of antagonism. Pairing of dikaryotic mycelia always resulted in antagonism and the degree of antagonism generally correlated with the relatedness of the isolates. Genetically different dikaryons therefore constitute discrete individuals. This is the first report of such interactions in G. boninense and these findings provide the basis for further studies on natural populations of this species.

Type
Research Article
Information
Mycological Research , Volume 106 , Issue 11 , November 2002 , pp. 1315 - 1322
Copyright
© The British Mycological Society 2002

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