XU Zhen SHANG Xiaodong SU Rong TAN Qi(Key Laboratory of Applied Mycological Resources and Utilization; Ministry of Agriculture; the People’s Republic of China; Shanghai Research Center for Edible Fungi Biotechnology and Engineering; Key Laboratory of Agricultural Genetics and Breeding of Shanghai; Institute of Edible Fungi; Shanghai Academy of Agricultural Sciences; Shanghai 201106; China)

【中文摘要】 <正>White Flammulina velutipes strains FM0 F21,F10 and F3-W were selected as the parental strains in a single-spore cross-breeding experiment.Thirty basidiospore-derived monokaryons were selected randomly from each parental strain,and mating was carried out according to the mating groups:FM×F21,FM×F3-W and F3-W×F10.Integrative analysis revealed that hybrid progenies from the FM×F21 mating group exhibited the highest mating rate (79%).However,only 59.2% of these hybrids produced measurable f...更多ruit body yields compared with 82.6% and 84.4% of the hybrids generated from FM×F3-W and F10×F3-W crosses respectively,perhaps indicating that certain hybrid progeny were better adapted to the standard set of cultivation conditions adopted in the study.Mating rates for FM×F3-W and F10 x F3-W crosses were 28% and 42%,respectively indicating that the number of mating type genes may vary among the monokaryons constituting each of the three mating groups.Mycelial growth rates of most FM×F21 hybrid progeny ranged between 4.0～7.0 mm/d.Corresponding values for progeny from FM×F3-W and F10×F3-W crosses were 3.0～6.0 mm/d and 2.0～6.0 mm/d,respectively although a small number of dikaryons from these two mating groups exhibited much higher/lower growth rates.No correlation between mycelial growth rate and fruit body yield was evident for any of the three sets of hybrid progeny.Fruit bodies produced by all the hybrid progeny were white in color.  還原

【英文摘要】 White Flammulina velutipes strains FM0 F21,F10 and F3-W were selected as the parental strains in a single-spore cross-breeding experiment.Thirty basidiospore-derived monokaryons were selected randomly from each parental strain,and mating was carried out according to the mating groups:FM×F21,FM×F3-W and F3-W×F10.Integrative analysis revealed that hybrid progenies from the FM×F21 mating group exhibited the highest mating rate (79%).However,only 59.2% of these hybrids produced measurable fruit body yields compared with 82.6% and 84.4% of the hybrids generated from FM×F3-W and F10×F3-W crosses respectively,perhaps indicating that certain hybrid progeny were better adapted to the standard set of cultivation conditions adopted in the study.Mating rates for FM×F3-W and F10 x F3-W crosses were 28% and 42%,respectively indicating that the number of mating type genes may vary among the monokaryons constituting each of the three mating groups.Mycelial growth rates of most FM×F21 hybrid progeny ra...更多nged between 4.0～7.0 mm/d.Corresponding values for progeny from FM×F3-W and F10×F3-W crosses were 3.0～6.0 mm/d and 2.0～6.0 mm/d,respectively although a small number of dikaryons from these two mating groups exhibited much higher/lower growth rates.No correlation between mycelial growth rate and fruit body yield was evident for any of the three sets of hybrid progeny.Fruit bodies produced by all the hybrid progeny were white in color.  還原

【英文關鍵詞】 Flammulina velutipes; single-spore cross-breeding; mycelium growth rate; fruit body yield
【基金】Supported by the Foundation of Shanghai Agricultural Committee (No.2006-3-1)

【文獻出處】 食用菌學報,Acta Edulis Fungi,編輯部郵箱,2008年04期 【DOI】CNKI:SUN:SYJB.0.2008-04-010