Tokita Masayoshi
Department of Zoology, Graduate School of Science, Kyoto University, Sakyo, Kyoto 606-8502, Japan.
Zoology (Jena). 2006;109(2):137-47. doi: 10.1016/j.zool.2005.12.004. Epub 2006 Apr 17.
The normal embryonic development of the Japanese pipistrelle, Pipistrellus abramus was described. A total of 13 stages between the early pharyngula and the embryo just before birth were established, based on external morphological features of 33 embryonic specimens. To aid embryological comparison between chiropteran lineages, the stage numbers used in the Carollia perspicillata embryonic staging system (Cretekos et al., 2005) were applied to each embryonic stage of P. abramus. The size (crown-rump length, CRL) of P. abramus embryos became larger throughout ontogeny at a relatively constant rate. When the CRL of embryos was compared in each morphologically corresponding embryonic stage, the CRL of P. abramus was always smaller than that of C. perspicillata. The overall nature of organogenesis was almost similar in both P. abramus and C. perspicillata. Species-specific differences in bats were observed at later stages of embryogenesis, notably in the craniofacial and tail regions.
描述了日本伏翼（Pipistrellus abramus）的正常胚胎发育过程。基于33个胚胎标本的外部形态特征，确定了从咽胚早期到出生前胚胎的总共13个阶段。为了便于翼手目谱系之间的胚胎学比较，将卡罗利伏翼（Carollia perspicillata）胚胎分期系统（Cretekos等人，2005年）中使用的阶段编号应用于日本伏翼的每个胚胎阶段。日本伏翼胚胎的大小（顶臀长，CRL）在整个个体发育过程中以相对恒定的速率变大。当在每个形态学上对应的胚胎阶段比较胚胎的CRL时，日本伏翼的CRL总是小于卡罗利伏翼的CRL。日本伏翼和卡罗利伏翼的器官发生总体性质几乎相似。在胚胎发育后期观察到蝙蝠的物种特异性差异，特别是在颅面和尾部区域。
