Matsubayashi H, Matsuda M, Tomimura Y, Shibata M, Tobari Y N
Department of Biology, Tokyo Metropolitan University, Japan.
Jpn J Genet. 1992 Jun;67(3):259-64. doi: 10.1266/jjg.67.259.
Semidominant, optic morphology (Om) mutants in Drosophila ananassae have been genetically mapped to at least 25 loci throughout the genome (Hinton, 1984; 1988). Among them, four X-linked Om mutants were proved to be associated with the insertion of a transposable element, tom (Shrimpton et al., 1986; Tanda et al., 1988). In the present study, cytological mapping of autosomal Om mutants was carried out by in situ hybridization to polytene chromosomes using a cloned tom element as a probe. The cytological site for each autosomal Om mutant has been determined to a single band of the salivary gland chromosomes.
在果蝇中，半显性的视觉形态（Om）突变体已通过遗传学方法定位到整个基因组中的至少25个位点（辛顿，1984年；1988年）。其中，四个X连锁的Om突变体被证明与转座因子tom的插入有关（施林普顿等人，1986年；田田等人，1988年）。在本研究中，使用克隆的tom元件作为探针，通过对多线染色体进行原位杂交，对常染色体Om突变体进行了细胞学定位。每个常染色体Om突变体的细胞学位点已确定在唾液腺染色体的单个条带上。
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