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拓数据分析揭示了嵌入葡萄藤 (Vitaceae) 和马拉库亚 (Passifloraceae) 树叶中的核心异构体和本体遗传程序

Sarah Percival¹, Joyce G Onyenedum², Daniel H Chitwood^1,3

¹Department of Computational Mathematics, Science & Engineering, Michigan State University, East Lansing, Michigan, United States of America.

PLoS computational biology

|February 5, 2024

概括

拓数据分析揭示了葡萄藤和马拉库亚物种中保存的叶形状发展,揭示了传统方法无法看到的隐藏的进化和发育模式.

科学领域:

植物形态学植物形态学
进化生物学是进化的生物学.
发育生物学是发展生物学.

背景情况:

叶子的形状往往过于简单化,掩盖了进化,发育和环境的复杂影响.
了解这些影响需要先进的分析技术来揭示潜在的模式.

研究的目的:

应用拓数据分析 (TDA) 来可视化和比较葡萄藤 (Vitaceae) 和马拉库亚 (Passifloraceae) 树叶形状上的异质和本体效应.
为了识别这些植物家族内保存的发育计划和偏差.

主要方法:

利用拓数据分析 (TDA),一种数学技术,对葡萄树和马拉库亚树叶形状的大数据集.
将TDA的发现与主要成分分析 (PCA) 和线性差异分析 (LDA) 等传统方法进行了比较.

主要成果:

葡萄树种类表现出强大,一致的异质细胞和本体遗传程序.
大多数maracuyá物种也表现出共同的核心发育计划,尽管叶子形状有显著的变化,这是传统分析错过的发现.
确定了两种不同的maracuyá形态类型,偏离了核心程序,暗示了新的进化轨迹.

结论:

TDA有效地解开了对叶子形状的混的发育和进化影响,揭示了复杂数据中隐藏的关系.
叶形状的发展显示出了显著的保护,即使在物种层面上存在显著的分歧,特别是在maracuyá家族内.
TDA提供了一种强大的方法来可视化潜在的形状,并了解植物形态学的进化和发育过程.

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