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多变体和几何形态学揭示了鱼类Sinibotia中的形态变化

Yongming Wang^1,2, Yong Xie³, Yanping Li²

¹Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, School of Life Sciences, Southwest University, Chongqing 400715, China.

|September 27, 2025

概括

多变体和几何形态学成功区分了类似的西尼博提亚物种. 这些方法揭示了关键的形态变异,有助于物种识别和保护这一鱼类属的努力.

科学领域:

鱼类学鱼类学鱼类学
形态学形态学形态学
人类遗传学是一个学科.

背景情况:

西尼博提亚物种表现出高度的形态相似性和密切的家族遗传关系,使传统的识别方法复杂化.
频繁发生的同步现象和可比的身体模式进一步挑战了Sinibotia中精确的物种差异化.

研究的目的:

使用先进的形态测量技术,评估和区分五种Sinibotia物种之间的形态变异.
调查多变量形态学 (MM) 和几何形态学 (GM) 在解决Sinibotia属内的分类学模糊性的实用性.

主要方法:

在5种Sinibotia物种的40个形态特征和34个地标上使用多变量形态学 (MM) 和几何形态学 (GM).
用于MM的区分函数分析 (DFA) 和规范变异分析 (CVA) 以及GM的相对扭曲分析.

主要成果:

在MM和GM分析中,Sinibotia物种成功分化,S. robusta与S. pulchra和S. zebra相比表现出明显的特征.
形态变异主要观察到鼻子长度,鼻子鼻子距离,头部深度,身体深度,尾长度和背长度.
MM量化了线性尺寸差异,而GM有效地捕获和可视化了复杂的形状变化.

结论:

结合MM和转基因证据显著有助于准确识别Sinibotia物种.
这些发现增强了对属内遗传关系和生态适应的理解.
该研究为保护和可持续利用Sinibotia物种提供了强有力的理论基础.

关键词:

锡尼博提亚鱼 (Sinibotia) 是一种鱼类.几何形态形态测量是几何形态的.多变量形态测量多变量形态测量现型差异是表型差异的种类的分歧,物种的分歧.

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