Open AccessNaturally Occurring Diploid Isolates of Aspergillus nidulans
Author(s) -
A. Upshall
Publication year - 1981
Publication title -
microbiology
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.019
H-Index - 179
eISSN - 1465-2080
pISSN - 1350-0872
DOI - 10.1099/00221287-122-1-7
Subject(s) - heterokaryon , ploidy , aspergillus nidulans , biology , aspergillus , genetics , genotype , natural population growth , population , somatic cell , gene , mutant , demography , sociology
Six wild isolates belonging to heterokaryon compatibility group A of the Birmingham Aspergillus nidulans collection were shown to be diploid. Five were proven heterozygous for a naturally occurring conditional lethal haploid genotype. It is considered unlikely that these diploids arose by mutation in storage. Consequently, somatic diploidy is a regular occurrence in the natural population of this saprophytic species.