部分最小平方增强了在新环境下土豆品种的多特征基因组预测
Rodomiro Ortiz1, Fredrik Reslow2, Abelardo Montesinos-López3
1Department of Plant Breeding, Swedish University of Agricultural Sciences (SLU), P.O. Box 190, SE 23436, Lomma, Sweden. rodomiro.ortiz@slu.se.
Scientific reports
|June 19, 2023
概括
部分最小平方 (PLS) 有效地预测使用单特征 (ST) 和多特征 (MT) 方法的土豆特征. 这种方法显示出强大的预测性能,使其对复杂数据集的植物育种具有价值.
科学领域:
- 植物育种 植物育种
- 遗传学 是一个遗传学.
- 统计建模 统计建模
背景情况:
- 植物育种需要处理大型预测变量和少数样本的方法.
- 预测因素和特征之间的高相关性需要高效的预测技术.
- 部分最小平方 (PLS) 是一种适合于此类挑战的统计方法.
研究的目的:
- 为了评估部分最小平方 (PLS) 对土豆特征的预测性能.
- 为了比较单特征 (ST) 和多特征 (MT) PLS预测策略.
- 在测试和未测试的环境中评估PLS性能.
主要方法:
- 应用单特征 (ST) 和多特征 (MT) 部分最小平方 (PLS).
- 在测试环境中使用五倍交叉验证 (5FCV) 进行预测.
- 在未经测试的环境中对预测进行交叉验证.
主要成果:
- ST和MT PLS都表现出良好的预测性能,皮尔森的相关性准确度经常超过0.5.5.
- 使用五倍交叉验证 (5FCV) 的预测准确度高于使用离开一个环境 (LOEO) 的预测准确度.
- 在马育种数据预测方面,PLS框架被证明是有效的.
结论:
- 部分最小平方 (PLS) 是一种宝贵的土豆育种工具,特别是用于预测任务.
- ST和MT PLS框架为复杂的遗传数据集提供了强大的预测能力.
- 这项研究提供了经验证据,支持PLS在优化土豆育种策略中的实用性.
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