摘要
果蝇中,w^n 是由于转座因子 copia 对红眼基因的第二内含子的插入造成的,表型为杏黄色眼。调控基因 E(w^n)影响着 w^n 的表达而使 w^n 果蝇眼色变浅.我们用γ射线诱变得到一个 E(w^n)的回复子,纯合致死,致死作用发生在幼虫期。在红眼基因的十一个等位基因中,E(w^n)只影响 w^n、w^(n4)、w^n、w^(np55)、w^(nRM)和 w^(nR844)的表达,它们均为红眼基因的转座因子的插入突变等位基因。但 E(w^n)~R 对这些等位基因同时失去调控作用.E(w^n)与 w^n 的其它调控基因 su(w^n),su(f)和 Doa 对 w^n 表达的调控是独立的。E(w^n)初步定位于第二染色体右臂的59F—60B的位置。
In Drosophila melanogaster,the (?) allele resullts from the insertion of the transposable elementcopia within the second intron of the while locus,The w^(?) flies have the apricot eye colour.The eye colourof (?) flies with E(?) become much lighter.One revertant of thre E(?) was generated by the irradia-tion with γ-ray,it is recessive lethal with death occuring during the larval stage.The expression of the(?)and (?) in 11 alleles of the w^+ were affacted by the E(?),but not by the E(?).These alleles are insertion mutations of w^+ with transposable element.The regulative effect ofthe E(?) on the expression of the (?) is independent of other modifiers of the (?),such as su((?)),su(∫) and E(?).The E(?) was preliminarily located at 59F-60B on the right arm of the thrid cvhro-mosome.
出处
《南京师大学报（自然科学版）》
CAS
CSCD
1993年第1期66-72,共7页
Journal of Nanjing Normal University(Natural Science Edition)
