通过深度学习检测SNP标记物来区分马种
Siavash Manzoori1, Amir Hossein Khaltabadi Farahani2, Mohammad Hossein Moradi1
1Department of Animal Science, Faculty of Agriculture and Natural Resources, Arak University, Arak, Iran.
Scientific reports
|July 18, 2023
概括
深度学习方法有效地选择有信息的SNP标记,以准确地分配动物品种. 这些选定的标记物成功地识别出未知样本的真实原始种群.
科学领域:
- 基因组学就是基因组学.
- 生物信息学是一种生物信息学.
- 机器学习 机器学习
背景情况:
- 准确地将个体分配到其原始种群中,对于基因组应用至关重要.
- 高通量基因型定型产生大量数据,需要有效的标记物选择方法.
研究的目的:
- 评估人工神经网络 (ANN),包括深度神经网络 (DNN),加森和奥尔登方法,用于选择信息性的SNP标记.
- 评估这些方法在将个体分配到其真正的起源品种中的性能.
主要方法:
- 利用了来自37个品种的795只动物的基因组数据,这些动物在Illumina SNP 50k Bead芯片上进行了基因组定型.
- 应用深度神经网络 (DNN),加森和奥尔登方法用于SNP特征选择.
- 使用主要组件分析 (PCA),日志概率比率 (LLR) 和邻近连接 (NJ) 树验证标记性能.
主要成果:
- DNN,加森和奥尔登方法确定了减少的SNP面板 (4270,4937,7999标记) 用于品种分配.
- 通过110个 (DNN),208个 (Garson) 和178个 (Olden) 标记,获得了70%的分配成功.
- 在最高的强度值下,DNN在93%的精度下表现出卓越的性能.
- 选择的标记物在一个独立的数据集上得到验证,正确地分配所有未知样本.
结论:
- 深度神经网络 (DNN) 提供了一种有效的策略,用于选择一组最小的高度歧视性SNP标记.
- 已确定的SNP小组对于准确的品种分配和追踪原始种群是有效的.
- 在基因组数据分析中,DNN显示了特征选择的巨大潜力.
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