Moltó M D, Martínez-Sebastián M J, De Frutos R
Department of Genetics, University of València, Burjassot, Spain.
Heredity (Edinb). 1993 May;70 ( Pt 5):490-8. doi: 10.1038/hdy.1993.71.
The polytene chromosome puffing pattern of Drosophila madeirensis was established and compared with those of the related species D. subobscura and D. guanche. A total of 145 loci, active in some of the 12 developmental stages analysed, were described, 38 of which were found to form the puffing pattern characteristic to this species. Taking into account the number of puffs as well as the mean puff expression, D. madeirensis shows a similar activity level to D. guanche, both species being less active than D. subobscura. The low gene activity of D. madeirensis and D. guanche was explained as a consequence of their ecological characteristics.
建立了马德拉果蝇的多线染色体胀泡模式，并与近缘物种暗果蝇和加那利果蝇的模式进行了比较。共描述了在12个分析发育阶段中的某些阶段活跃的145个基因座，其中38个被发现形成了该物种特有的胀泡模式。考虑到胀泡的数量以及平均胀泡表达，马德拉果蝇显示出与加那利果蝇相似的活性水平，这两个物种的活性均低于暗果蝇。马德拉果蝇和加那利果蝇的低基因活性被解释为它们生态特征的结果。
