基于转录组数据揭示4种兜兰的全基因组复制历史

王蒙¹, 王婷¹^,², 夏增强¹^,³, 李廷章¹, 金效华⁴, 严岳鸿¹, 陈建兵¹^,^*(

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Revealing the New Whole-genome Duplication Event of Four Paphiopedilum Species Based on Transcriptome Data

Meng Wang¹, Ting Wang¹^,², Zengqiang Xia¹^,³, Tingzhang Li¹, Xiaohua Jin⁴, Yuehong Yan¹, Jianbing Chen¹^,^*(

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图2. 4种兜兰的K_s密度分布
灰色直方图: 物种内旁系同源基因的K_s密度分布; 红色曲线: 4种兜兰与深圳拟兰间直系同源基因的K_s密度分布; 绿色曲线: 杏黄兜兰与其它3种兜兰间直系同源基因的K_s密度分布; 蓝色虚线: 物种内旁系同源基因K_s值的高斯混合模型拟合结果; 灰色虚线: 高斯混合模型显著拟合到的K_s峰值。

Figure 2. The density plot of K_s from four species of Paphiopedilum
Histograms filled in grey: The density distributions of intraspecies paralogue K_s values; Red solid curves: The K_s density plots of interspecies orthologues between four species of Paphiopedilum and Apostasia shenzhenica; Green solid curves: The K_s density plots of interspecies orthologues between P. armeniacum and other three species of Paphiopedilum; Blue dashed curves: The fitting results based on Gaussian mixture modeling of intraspecies paralogue K_s values; Grey dashed lines: The K_s values of significant peaks identified by Gaussian mixture modeling.