Weir M P, Kornberg T
Nature. 1985;318(6045):433-9. doi: 10.1038/318433a0.
Transcripts of the engrailed and fushi tarazu genes in young Drosophila embryos are initially patterned in intervals larger than a single segment. The segmental pattern evolves in a stepwise sequence through successively smaller spatial units.
在果蝇幼胚中,engrailed基因和fushi tarazu基因的转录本最初是以大于单个节段的间隔进行模式化的。节段模式通过连续更小的空间单位以逐步的序列演化。