CONTROL OF SOMITE NUMBER DURING MORPHOGENESIS OF A VERTEBRATE, XENOPUS-LAEVIS
CONTROL OF SOMITE NUMBER DURING MORPHOGENESIS OF A VERTEBRATE, XENOPUS-LAEVIS
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DOI：
10.1038/254196a0
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发表时间：
1975-01-01
期刊：
影响因子：
64.8
通讯作者：
COOKE, J
中科院分区：
文献类型：
--
作者：
COOKE, J
在异种胚胎发生和早期生长过程中，体节数目在每个形态阶段都接近种典型值。即使在囊胚上进行手术，导致发育出异常小但完整的早期胚胎，包括分配给每个体节的细胞数量减少，这仍然是正确的。提出的证据表明，身体位置梯度可能参与，但在不同的阶段，以不同的方式，在控制总体节数。
DuringXenopusembryogenesis and early growth, somite number stays close to a species-typical value for each morphological stage. This remains true even after operations on blastulae which lead to the development of abnormally small but otherwise complete early embryos, involving reduction in number of cells assigned to each somite. Evidence presented suggests that a body-position gradient may be involved, but in rather different ways at different stages, in controlling total somite number.