The embryology of the common marmoset (Callithrix jacchus).
The embryology of the common marmoset (Callithrix jacchus).
复制标题
普通狨猴（Callithrix jacchus）的胚胎学。
DOI：
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发表时间：
1976
期刊：
影响因子：
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通讯作者：
I. R. Phillips
中科院分区：
文献类型：
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作者：
I. R. Phillips
早期的研究已经注意到绒猴不寻常的胎盘解剖结构和高频率的双卵，合卵双胞胎。维持一个圈养群体的Callithrix jacchus使进一步的研究，在这个物种的胚胎发育。36个胚胎从17个怀孕进行了详细的检查，并分配到视野的基础上Streeter的外部形式和内部结构的分类。这些标本代表了胚胎期的主要部分，除了少数例外，绒猴的结构发育与其他已被描述的灵长类动物非常相似。同一层位的绒猴胚胎始终比人的胚胎短。jacchus与在人类和其他灵长类动物中观察到的不同。有一个相当大的延迟，在早期胚胎发育的绒猴，虽然随后的第十一阶段，发展进行了大致相同的速度，其他灵长类动物。现有的证据表明，这种异常不是由于延迟着床或胚胎滞育，而是由于早期发育的速度普遍较慢。同步孪生的演化被认为是这种发育模式的一个可能原因。
Earlier studies have noted the unusual placental anatomy of marmosets and the high frequency of biovular, synchorial twinning. The maintenance of a captive colony of Callithrix jacchus has enabled further studies to be made of embryonic development in this species. Thirty-six embryos from seventeen pregnancies were examined in detail and assigned to horizons on the basis of Streeter's classification of external form and internal structure. The specimens represented tha major part of the embryonic period and, with few exceptions, the structural development of the marmoset closely resembled that of the other primates that have been described. Marmoset embryos of a given horizon were consistently shorter than those of man. The timing of morphogenesis in C. jacchus was different from that observed in man and other primates. There was a considerable delay in early embryogenesis in the marmoset, although subsequent to stage XI, development proceeded at approximately the same rate as other primates. The available evidence suggested that this anomaly was not due to delayed implantation or embryonic diapause but to a generally slower rate of early development. The evolution of synchorial twinning is considered as a possible reason for this mode of development.