Upshall A
J Gen Microbiol. 1981 Jan;122(1):7-10. doi: 10.1099/00221287-122-1-7.
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.
伯明翰构巢曲霉保藏库中属于异核体相容性A组的六个野生分离株显示为二倍体。其中五个被证明对于一种天然存在的条件致死单倍体基因型是杂合的。据认为，这些二倍体不太可能是在保藏过程中通过突变产生的。因此，体细胞二倍体在这种腐生菌的自然种群中是一种常见现象。
