Harrison Colin, Wabbersen Tara, Shepherd Iain T
Department of Biology, Emory University, Atlanta, Georgia.
Genesis. 2014 Dec;52(12):985-90. doi: 10.1002/dvg.22826. Epub 2014 Nov 4.
The phox2b gene encodes a transcription factor that is expressed in the developing enteric nervous system (ENS). An enhancer element has been identified in the zebrafish phox2b locus that can drive tissue specific expression of reporter genes in enteric neuron precursor cells. We have generated a transgenic zebrafish line in which the Kaede fluorescent protein is under the control of this phox2b enhancer. This line has stable expression of the Kaede protein in enteric neuron precursor cells over three generations. To demonstrate the utility of this line we compared the migration and division rates of enteric neuron precursor cells in wild type and the zebrafish ENS mutant lessen.
phox2b基因编码一种在发育中的肠神经系统(ENS)中表达的转录因子。在斑马鱼phox2b基因座中已鉴定出一种增强子元件,它可以驱动报告基因在肠神经元前体细胞中进行组织特异性表达。我们构建了一种转基因斑马鱼品系,其中Kaede荧光蛋白受该phox2b增强子的控制。该品系在三代以上的肠神经元前体细胞中具有稳定的Kaede蛋白表达。为了证明该品系的实用性,我们比较了野生型和斑马鱼ENS突变体lessen中肠神经元前体细胞的迁移和分裂速率。