【摘要】 以格氏线虫(NC513)及小卷蛾线虫(DD-136)的幼胚、精巢及卵巢为材料,用地衣红染色、压片法制作玻片标本、对其染色体组型进行了研究,结果表明,两种线虫的染色体数目均为雌性2 N=10,雄性2 N=9。但它们的染色体组型并不一致,两种线虫的染色体组型可概括为以下公式。格氏线虫(NC513):2N=4m+6t(雌),2N=4m+5t(雄)。小卷蛾线虫(DD-136):2N=8m+2t(雌),2N=7m+2t(雄)。更多还原

【Abstract】 The karyotypes of the gonadal cells and the embryonic cells of Steinernema (syn. Neoaplectana) glaseri (NC513) and Steinernema feltiae (syn. Neoaplectana carpocapsae) (DD-136) were studied. slides are made by the squash technique with orcein staining. The results obtained from this study indicat that both nematodes ahewed a 2N condition of nine chromosomes for the males ten for the females, but they are different in the karyotype from one species to another. The karyotype formulae of (NC513) 2N = 4m + 6t (♀),3N = 4m + 5t (♂) .The karyotype formulae of (DD-136);2N=8m+2t(♀),2N=7m+2y(♂).更多还原