To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie S4 An esgG66B / esgG66B; dys2 / dys3 embryo carrying btl>GFP-moe, showing the duplication of the terminal-cell (TC) phenotype (left-side pair, class 2) and single TC phenotype (central pair, class 3). Interval: 172 sec. Escargot controls the sequential specification of two tracheal tip cell types by suppressing FGF signaling in Drosophila Guangxia Miao, and Shigeo Hayashi Development 2016. 143:4261-4271; doi: 10.1242/dev.133322 Download Original Video