Ozier-Kalogeropoulos O, Guillemet E
Centre de Génétique Moléculaire du C.N.R.S., Université Pierre et Marie Curie, Gif-sur-Yvette, France.
Mutat Res. 1989 Jun;226(2):127-32. doi: 10.1016/0165-7992(89)90055-9.
In the basidiomycete Coprinus radiatus, crosses gave rise with a high frequency to 2 types of self-fructifying progeny. The first type showed monokaryotic fruiting due to the occurrence of a mutation associated with the B1 incompatibility factor. The second type showed fruiting due to the presence of the 2 parental genomes in the original spore. Mutability and abnormal development of the life cycle are responsible for self-fructification. These features occurred in progeny of related strains harbouring a genetic instability located at the Nic-2 locus. High mutability, disturbance of the development of the life cycle and genetic instability are traits which resemble hybrid dysgenesis in Drosophila and meiotic dysgenesis in Phycomyces.
在担子菌辐射鬼伞中，杂交产生了高频率的2种自育后代类型。第一种类型由于与B1不亲和因子相关的突变而表现出单核结实。第二种类型由于原始孢子中存在两个亲本基因组而表现出结实。生活周期的可突变性和异常发育是自育的原因。这些特征出现在携带位于Nic-2位点的遗传不稳定性的相关菌株的后代中。高可突变性、生活周期发育的紊乱和遗传不稳定性是类似于果蝇中的杂种不育和毛霉中的减数分裂不育的特征。
