title: [Influence of B mating-type factor on recovery of nuclear types from dikaryons in Lentinula edodes].
abstract: This study determined a genetic basis for the phenomenon of significant asymmetric ratio of the two component nuclear types from dikaryons of Lentinula edodes via protoplast formation and regeneration by clarifying the influence of A or B mating-type factor on recovery of nuclear types from dikuaryons. The results revealed that B factor or some supposed genes linked to the B factor appeared to influence survival of dedikaryotized nuclei,whereas A factor had no apparent effect on this phenomenon. Specificity of B factor was shown to correlate with percentage survival of the component nuclear types recovered from both kinds of heterokaryons (A not equal to B not equal to and A = B not equal to). It can be put in an hierarchical order with respect to this function,the hierarchical order of these B factors was B1 > B3 > B4 > B2 between two tested strains.
authors.affiliation: Huanggand Normal University, Huanggang 436100, China. csm1102@sina.com
authors.forename: Shui-Ming
authors.initials: SM
authors.lastname: Cheng
authors.forename: Fang-Can
authors.initials: FC
authors.lastname: Lin
mesh_terms: D005656:Fungal Proteins / Q000502:physiology; D000072235:Mating Factor; D010455:Peptides / Q000502:physiology*; D020942:Shiitake Mushrooms / Q000502:physiology*
chemical_list: D005656:Fungal Proteins; D010455:Peptides; D000072235:Mating Factor