Department of Biology, TECHNION-Israel Institute of Technology, Haifa, Israel.
EMBO J. 1984 May;3(5):999-1002. doi: 10.1002/j.1460-2075.1984.tb01919.x.
The recovery and analysis of a novel class of zeste mutations is described. z and z do not require two w genes for their expression unless the z gene is present. Analysis of genetic interactions among zeste alleles proved that z mutations are strong antagonists of the z gene product. z is readily reverted by X-rays or by ethylmethane sulphonate to a range of intermediate zeste alleles and thus it is considered to be an insertional mutation. We suggest that z and op mutations arose as a result of insertions in a presumptive control region, and two alternative models for the structure of the zeste locus are evaluated.
描述了一类新型 zeste 突变的恢复和分析。z 和 z 不需要两个 w 基因来表达,除非存在 z 基因。对 zeste 等位基因之间的遗传相互作用的分析证明,z 突变是 z 基因产物的强拮抗剂。z 很容易被 X 射线或乙基甲烷磺酸逆转成一系列中间 zeste 等位基因,因此它被认为是插入突变。我们认为 z 和 op 突变是由于在一个假定的控制区域的插入而产生的,并且评估了 zeste 基因座的两种替代结构模型。