Cytogenic analysis of chromosome 3 in Drosophila melanogaster: mapping of the proximal portion of the right arm.
Cytogenic analysis of chromosome 3 in Drosophila melanogaster: mapping of the proximal portion of the right arm.
复制标题
果蝇 3 号染色体的细胞遗传学分析：右臂近端部分的绘图。
作者：
I. Duncan;T. Kaufman
为了更精确地确定果蝇3R染色体最近端的位置，已发现并分析了几个涉及该区域的新的染色体畸变。这些新的排列被恢复为位于感兴趣区域的两个显性突变ANTPN和dsxD的诱导回复。分析的结果已经允许定位几个现有的突变，进一步阐明了复杂的同源异型基因座，它驻留在这个区域，并证实了这种类型的屏幕在特定的染色体区域的分析的功效。
In order to define more precisely the most proximal portion of chromosome 3R in Drosophila melanogaster, several new chromosome aberrations involving this region have been recovered and analyzed. These new arrangements were recovered as induced reversions of two dominant mutations, ANTPNs and dsxD, located in the region of interest. The results of the analysis have allowed the localization of several existing mutations, have further elucidated the complex homoeotic locus which resides in this region, and have confirmed the efficacy of this type of screen in the analysis of specific chromosome regions.