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Intraspecific isozyme variability in Italian populations of the white truffle Tuber magnatum

Published online by Cambridge University Press:  21 May 2001

Giuliano FRIZZI ,
Giorgio LALLI ,
Michele MIRANDA  and
Giovanni PACIONI
Giuliano FRIZZI
Affiliation:
Departments of Environmental Sciences and Basic and Applied Biology, University of L'Aquila, 1-67110 Coppito, L'Aquila, Italy. E-mail: Pacioni@aquila.infn.it
Giorgio LALLI
Affiliation:
Departments of Environmental Sciences and Basic and Applied Biology, University of L'Aquila, 1-67110 Coppito, L'Aquila, Italy. E-mail: Pacioni@aquila.infn.it
Michele MIRANDA
Affiliation:
Departments of Environmental Sciences and Basic and Applied Biology, University of L'Aquila, 1-67110 Coppito, L'Aquila, Italy. E-mail: Pacioni@aquila.infn.it
Giovanni PACIONI
Affiliation:
Departments of Environmental Sciences and Basic and Applied Biology, University of L'Aquila, 1-67110 Coppito, L'Aquila, Italy. E-mail: Pacioni@aquila.infn.it
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Abstract

Eleven enzymes from 139 specimens of thirteen Italian populations of Tuber magnatum were analysed with multilocus horizontal starch gel electrophoresis. The research was carried out to obtain insight into the genetic variability of this species across its geographic range. All the gene-enzyme systems scored appear to be fixed in homozygosity in accordance with what is hitherto known in the genus Tuber; nine seemed monomorphic, whereas two, that is MDH-1 and ME-2, showed three alleles each. These results indicated a self-reproductive system and the low genetic variability is in agreement with the restricted endemism of the white truffle. The distribution of the electrophoretic types is discussed as a basis for further molecular applications.

Type
Research Article
Information
Mycological Research , Volume 105 , Issue 3 , March 2001 , pp. 365 - 369
Copyright
© The British Mycological Society 2001

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