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Experimental Studies on the Morel. I. Heterokaryon Formation between Monoascosporous Strains of Morchella

Thomas J. Volk and Thomas J. Leonard
Mycologia
Vol. 81, No. 4 (Jul. - Aug., 1989), pp. 523-531
DOI: 10.2307/3760127
Stable URL: http://www.jstor.org/stable/3760127
Page Count: 9
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Experimental Studies on the Morel. I. Heterokaryon Formation between Monoascosporous Strains of Morchella
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Abstract

Three lines of evidence are reported for heterokaryon formation in Morchella esculenta and related species. Cultural studies demonstrated a genetic basis for different types of interactions between mycelia from sister and non-sister spores. Cytological studies of the mycelial interaction between non-sister monoascosporous isolates demonstrated nuclear pairing in presumptive heterokaryons. Two different mutations isolated in this study were used to show genetic complementation in these heterokaryons.

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