Temporal and cellular requirements for Fms signaling during zebrafish adult pigment pattern development

被引:155
作者
Parichy, DM
Turner, JM
机构
[1] Univ Texas, Inst Mol & Cellular Biol, Sect Integrat Biol, Austin, TX 78712 USA
[2] Univ Texas, Inst Mol & Cellular Biol, Sect Mol Cell & Dev Biol, Austin, TX 78712 USA
来源
DEVELOPMENT | 2003年 / 130卷 / 05期
关键词
melanophore; xnathophore; pigment pattern; zebrafish; fms; csf1r; neural crest;
D O I
10.1242/dev.00307
中图分类号
Q [生物科学];
学科分类号
07 ; 0710 ; 09 ;
摘要
Ectothermic vertebrates exhibit a diverse array of adult pigment patterns. A common element of these patterns is alternating dark and light stripes each comprising different classes of neural crest-derived pigment cells. In the zebrafish, Danio rerio, alternating horizontal stripes of black melanophores and yellow xanthophores are a prominent feature of the adult pigment pattern. In fins mutant zebrafish, however, xanthophores fail to develop and melanophore stripes are severely disrupted. fins encodes a type III receptor tyrosine kinase expressed by xanthophores and their precursors and is the closest known homologue of kit, which has long been studied for roles in pigment pattern development in amniotes. In this study we assess the cellular and temporal requirements for Fms activity in promoting adult pigment pattern development. By transplanting cells between fms mutants and either wild-type or nacre mutant zebrafish, we show that fms acts autonomously to the xanthophore lineage in promoting the striped arrangement of adult melanophores. To identify critical periods for fms activity, we isolated temperature sensitive alleles of fins and performed reciprocal temperature shift experiments at a range of stages from embryo to adult. These analyses demonstrate that Fms is essential for maintaining cells of the xanthophore lineage as well as maintaining the organization of melanophore stripes throughout development. Finally, we show that restoring Fms activity even at late larval stages allows essentially complete recovery of xanthophores and the development of a normal melanophore stripe pattern. Our findings suggest that fms is not required for establishing a population of precursor cells during embryogenesis but is required for recruiting pigment cell precursors to xanthophore fates, with concomitant effects on melanophore organization.
引用
收藏
页码:817 / 833
页数:17
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