Ransom R
J Embryol Exp Morphol. 1976 Aug;36(1):109-25.
An account of the patterns of clones induced on the head cuticle of Drosophila melanogaster is given. The system was studied using mitotic recombination, induced by X-rays at certain developmental stages. In agreement with the findings of a computer model devised to simulate growth in the head imaginal disc, cuticle clones are found to have a characteristic pattern, sweeping round the central, eye-forming part of the disc. The similarity between model and experiment suggests the validity of the model assumption. It is also shown that cuticle clones are not smaller in the posterior of the head, when induced at the developmental stages studied: this is in contrast to clones in the compound eye, where posterior clones are smaller than anterior ones.
本文描述了在黑腹果蝇头部表皮上诱导产生的克隆模式。该系统是通过在特定发育阶段用X射线诱导有丝分裂重组来进行研究的。与为模拟头部成虫盘生长而设计的计算机模型的结果一致，发现表皮克隆具有一种特征模式，围绕着盘的中央、形成眼睛的部分呈扇形分布。模型与实验之间的相似性表明了模型假设的有效性。研究还表明，在所研究的发育阶段诱导产生的表皮克隆在头部后部并不更小：这与复眼中的克隆情况相反，复眼中后部的克隆比前部的克隆小。
