| Literature DB >> 10919376 |
R B Peabody1, D C Peabody, K M Sicard.
Abstract
The basidiome stage of Armillaria gallica can be a genetic mosaic. Ten cells isolated from a single basidiome in 1986 produced nine different genotypes when analyzed for variation at six nuclear loci. Four additional basidiomes collected in 1986 produced mosaic patterns when analyzed for variation at a single nuclear (PCR-RFLP) locus. One basidiome collected in 1993 was not a genetic mosaic because 15 cells isolated from it produced only one genotype when analyzed for six nuclear loci. Two hundred seventy-four samples collected in the field between 1981 and 1998 were analyzed for variation at the PCR-RFLP locus. Samples collected prior to 1988 produced patterns consistent with the existence of mosaicism, but samples collected after 1988 showed no evidence of mosaicism. Genetic mosaicism represents a novel mechanism for partitioning genotypes among the cells of a basidiomycete and has interesting implications for the biology of A. gallica.Entities:
Mesh：
Substances：
Year: 2000 PMID： 10919376 DOI： 10.1006/fgbi.2000.1187
Source DB: PubMed Journal: Fungal Genet Biol ISSN： 1087-1845 Impact factor: 3.495