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评估无里程碑形态测量在宏观进化分析中的应用
James M Mulqueeney1,2, Thomas H G Ezard3, Anjali Goswami4
1School for Ocean & Earth Science, National Oceanography Centre Southampton, University of Southampton Waterfront Campus, Southampton, UK. j.m.mulqueeney@soton.ac.uk.
BMC ecology and evolution
|April 27, 2025
概括
自动化,没有地标的形状分析显示出大规模进化研究的前景. 虽然有效,但这些方法需要进一步改进,以便在多种类型中广泛采用.
科学领域:
- 进化生物学是进化的生物学.
- 形态测量法 形态测量法 形态测量法
- 计算解剖学的计算解剖学
背景情况:
- 3D几何形态学彻底改变了表型进化研究.
- 手动地标是耗时的,取决于操作人员,并限制了交叉税收的比较.
- 自动化,没有里程碑的方法提供了潜力,但在宏观进化分析方面尚未充分探索.
研究的目的:
- 评估宏观进化分析的自动化,没有基准的方法.
- 为了比较确定性地图集分析 (DAA) 与高密度几何形态学.
- 评估这些方法在各种哺乳动物分类中的实用性.
主要方法:
- 应用大变形差形度量测绘 (LDDMM) 通过DAA.
- 利用了来自180个家族的322只哺乳动物的数据集.
- 使用Poisson表面重建的标准化混合模式扫描数据 (CT和表面扫描).
主要成果:
- 标准化改善了DAA-手动标志对应,尽管对于特定的种类 (灵长类动物,鱼) 存在差异.
- 无论是DAA还是手工方法,对遗传学信号,形态差异和进化速率的估计结果都是相似的,但有所不同.
- 由于提高了效率,DAA显示出大规模跨种类研究的潜力.
结论:
- 像DAA这样的无里程碑方法为宏观进化形态学提供了效率的提升.
- 仍然存在挑战,特别是关于在形态上不同类型的准确性.
- 需要进一步的研究和方法改进,才能使无里程碑分析得到广泛采用.
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