Lawrence P A, Green S M, Johnston P
J Embryol Exp Morphol. 1978 Feb;43:233-45.
An analysis of the cell lineage of the adult Drosophila abdomen is reported. Genetically marked clones are produced in the tergites in the embryo and in the sternites and pleura during larval life. The spatial disposition of the segment primordia is also studied in a series of 250 gynandromorphs. We conclude that in the embryo the segments are all separate polyclones soon after blastoderm and these are probably adjacent to each other. Gynandromorph analysis suggests that segments 2--6 develop from similarly sized cell groups but that the first tergite develops from a primordium which is equal to that of two other segments. We suggest that presumptive adult and larval cells are not separated at blastoderm. Our estimate from clonal analysis of the number of larval cells (12) which construct the sternites and pleura is equal to the number observed directly in the ventral nest of histoblasts.
报道了对成年果蝇腹部细胞谱系的分析。在胚胎期的背板以及幼虫期的腹板和侧板中产生了基因标记的克隆。还在一系列250个雌雄嵌合体中研究了体节原基的空间分布。我们得出结论，在胚胎中，胚盘形成后不久各体节都是独立的多克隆，并且它们可能彼此相邻。雌雄嵌合体分析表明，第2至6节由大小相似的细胞群发育而来，但第一背板由一个与其他两个体节相等的原基发育而来。我们认为，假定的成虫和幼虫细胞在胚盘形成时并未分离。我们通过克隆分析对构成腹板和侧板的幼虫细胞数量（12个）的估计与在组织原基腹侧巢中直接观察到的数量相等。
