Oh Jinwoo, Oh Hong-Shik, Kimura Junpei, Koyabu Daisuke
Department of Anatomy and Cell Biology, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul 151-742, Republic of Korea.
Department of Science Education, Jeju National University, Jeju 690-750, Republic of Korea.
J Vet Med Sci. 2017 Dec 22;79(12):2052-2056. doi: 10.1292/jvms.17-0270. Epub 2017 Nov 6.
The sequence of cranial suture closure among cervids is reported to be generally species-specific and highly conservative within species. On the other hand, it is known that intraspecific variation often exists to some extent in other mammalian taxa. Here we studied the cranial suture closures of Capreolus pygargus from Jeju Island and compared it with other cervid species. We found that the timing of the interparietal suture closure is highly variable within C. pygargus. Capreolus capreolus similarly shows intraspecific variation of the interparietal suture closure, whereas other cervid species studied to date do not show any intraspecific variation in the sequence of cranial suture closure. Such high intraspecific variation of the interparietal suture may be a derived character for Capreolus.
据报道，鹿科动物颅骨缝线闭合的顺序通常具有物种特异性，并且在物种内部高度保守。另一方面，已知在其他哺乳动物类群中，种内变异在一定程度上经常存在。在此，我们研究了济州岛毛冠鹿的颅骨缝线闭合情况，并将其与其他鹿科物种进行了比较。我们发现，毛冠鹿顶间骨缝线闭合的时间在种内高度可变。狍同样表现出顶间骨缝线闭合的种内变异，而迄今为止研究的其他鹿科物种在颅骨缝线闭合顺序上未表现出任何种内变异。顶间骨缝线如此高的种内变异可能是毛冠鹿的一个衍生特征。
