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在状爬行动物中吐的演变,特别强调Lacerta agilis
Paweł Kaczmarek1, Ingmar Werneburg2,3, Brian Metscher4
1Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Sciences, University of Silesia in Katowice, Katowice, Poland.
Journal of anatomy
|November 21, 2025
概括
这项研究揭示了Lacerta agilis的眼管和口沟的胚胎发育影响了眼-口沟的形成,影响了化学接收. 腔槽在将化学物质输送到鼻器官 (VNO) 中发挥着关键作用.
科学领域:
- 发展生物学 发展生物学
- 比较解剖学的比较.
- 状体中的嗅觉系统
背景情况:
- 状体中的鼻综合体整合了嗅觉系统和相关结构,如鼻腔,鼻器官 (VNO),腔槽和管.
- 一个关键的特点是VNO与鼻腔的分离,允许直接与口腔连接,以便通过舌头介导吐.
- 眼管将哈德尔腺分泌物输送到VNO管道,帮助气味分子溶解,并且经常连接到nonophidian squamates中的choanal槽.
研究的目的:
- 分析虫 (Lacerta agilis) 中鼻综合体的胚胎发育情况.
- 为了研究异时性和异构在眼-沟沟形成中的作用.
- 阐明沟在胚胎发育和成人解剖学中与化疗接收相关的功能意义.
主要方法:
- 拉塞尔塔利斯胚胎的组织学序列切断.
- 用X射线显微断层扫描进行详细的结构分析.
- 与其他非类状动物的发育模式进行比较分析.
主要成果:
- 在L. agilis中,鼻宫综合体发展的一般模式与其他非状状状动物保持一致,在发育时间方面有显著的例外.
- 眼管和小沟的延迟发育 (异时性) 和它们的初始接触范围 (异构) 影响眼-小沟的形成.
- 已证实,眼沟的前部仅由眼管组成;L. agilis胚胎中暂时存在一个完整的沟.
结论:
- 沟的胚胎发育对于引导眼管到VNO管道至关重要.
- 门槽被纳入成人的眼-门沟,可能将化学物质输送与VNO联系起来.
- 这些发现支持了腔沟,表面 palatal 形态学,tropotaxis 和 vomeronasal 感官表皮敏感性之间的功能联系.
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