Sv. Mezhzherin et Ya. Mezhzherina, Genetic structure of species community of macromycetes of the genus Leccinum Gray (Basidiomycetes Boletaceae) of the right-bank Poles'ye, RUSS J GEN, 36(1), 2000, pp. 25-33
The biochemical gene marking of the macromycete community of the genus Lecc
inum revealed nine reproductively isolated genetically differentiated forms
instead of the two to five forms traditionally recognized in Poles'ye. Fro
m 20 to 85% of the loci studied were found to have genetic distinctions and
the degree of genetic variation did not always correlate with the morpholo
gical features of the forms identified. The variation of the locus number w
as found to be an important differentiating factor characteristic for this
genus. In the group of L. scabrum s. I., every second locus was duplicated,
whereas multiple isozymes were absent in L. aurantiacum s. I. An extremely
high level of allozyme variation in macromycetes was found. The equilibriu
m between the expected and observed genotypes in the fruit body samples was
established and discussed. It was evidence of the fact that a panmictic mo
del can be applied to the mushrooms of this genus, and that each fruit body
is an individual organism.