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首页> 外文期刊>Journal of Bioinformatics and Computational Biology >THREE-DIMENSIONAL DEFINITION OF LEAF MORPHOLOGICAL TRAITS OF ARABIDOPSIS IN SILICO PHENOTYPIC ANALYSIS
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THREE-DIMENSIONAL DEFINITION OF LEAF MORPHOLOGICAL TRAITS OF ARABIDOPSIS IN SILICO PHENOTYPIC ANALYSIS

机译：硅酮表型分析中拟南芥叶片形态性状的三维定义

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摘要

The detection of phenotypic alterations of mutants and variants is one of the bottlenecks that hinder systematic gene functional studies of the model plant Arabidopsis. In an earlier study, we have addressed this problem by proposing a novel methodology for phenome analysis based on in silico analysis of polygon models that are acquired by 3-dimensional (3D) measurement and which precisely reconstruct the actual plant shape. However, 3D quantitative descriptions of morphological traits are rare, whereas conventional 2D descriptions have already been studied but may lack the necessary precision. In this report, we focus on six major leaf morphological traits, which are commonly used in the current manual mutant screens, and propose new 3D quantitative definitions that describe these traits. In experiments to extract the traits, we found significant differences between two variants of Arabidopsis with respect to blade roundness and blade epinasty. Remarkably, the detected difference between variants in the blade roundness trait was undetectable when using conventional 2D descriptions. Thus, the result of the experiment indicates that the proposed definitions with 3D description may lead to new discoveries of phenotypic alteration in gene functional studies that would not be possible using conventional 2D descriptions.
机译：突变体和变体的表型改变的检测是阻碍模型植物拟南芥系统基因功能研究的瓶颈之一。在较早的研究中，我们已经提出了一种新的表型分析方法，该方法基于对通过3维（3D）测量获得的多边形模型进行计算机分析，并能够精确地重建实际的植物形状。但是，很少对形态特征进行3D定量描述，而常规的2D描述已得到研究，但可能缺乏必要的精度。在此报告中，我们重点介绍了当前手动突变体筛选中常用的六个主要叶片形态性状，并提出了描述这些性状的新3D定量定义。在提取性状的实验中，我们发现拟南芥的两个变体之间在叶片圆度和叶片隆起方面存在显着差异。值得注意的是，在使用常规2D描述时，无法检测到叶片圆度特征的变体之间的差异。因此，实验结果表明，带有3D描述的拟议定义可能导致基因功能研究中表型改变的新发现，而使用传统的2D描述则是不可能的。

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