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首页> 美国卫生研究院文献>Heredity >QuLinePlus: extending plant breeding strategy and genetic model simulation to cross-pollinated populations—case studies in forage breeding
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QuLinePlus: extending plant breeding strategy and genetic model simulation to cross-pollinated populations—case studies in forage breeding

机译：QuLinePlus：将植物育种策略和遗传模型模拟扩展到异花授粉种群—牧草育种的案例研究

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Plant breeders are supported by a range of tools that assist them to make decisions about the conduct or design of plant breeding programs. Simulations are a strategic tool that enables the breeder to integrate the multiple components of a breeding program into a number of proposed scenarios that are compared by a range of statistics measuring the efficiency of the proposed systems. A simulation study for the trait growth score compared two major strategies for breeding forage species, among half-sib family selection and among and within half-sib family selection. These scenarios highlighted new features of the QuLine program, now called QuLinePlus, incorporated to enable the software platform to be used to simulate breeding programs for cross-pollinated species. Each strategy was compared across three levels of half-sib family mean heritability (0.1, 0.5, and 0.9), across three sizes of the initial parental population (10, 50, and 100), and across three genetic effects models (fully additive model, a mixture of additive, partial and over dominance model, and a mixture of partial dominance and over dominance model). Among and within half-sib selection performed better than among half-sib selection for all scenarios. The new tools introduced into QuLinePlus should serve to accurately compare among methods and provide direction on how to achieve specific goals in the improvement of plant breeding programs for cross breeding species.
机译：植物育种者受到一系列工具的支持，这些工具可帮助他们做出有关植物育种计划的进行或设计的决策。模拟是一种战略工具，使育种者能够将育种程序的多个组件集成到许多建议的方案中，这些方案可以通过一系列测量建议系统效率的统计数据进行比较。性状生长分数的模拟研究比较了两种同食草料育种的主要策略，即半同胞家庭选择以及半同胞家庭选择和半同胞家庭选择。这些场景突出了QuLine程序（现在称为QuLinePlus）的新功能，该功能被合并以使该软件平台可用于模拟交叉授粉物种的育种程序。在三个半同胞家庭平均遗传力水平（0.1、0.5和0.9），三个原始父母群体大小（10、50和100）以及三个遗传效应模型（完全累加模型）之间比较了每种策略，加性，部分和超支配模式的混合以及部分支配和超支配模式的混合）。在所有情况下，半同胞之间的选择和内部同胞选择的表现要好于半同胞之间的选择。 QuLinePlus中引入的新工具应有助于在方法之间进行准确比较，并为如何实现改善跨育种植物育种计划的具体目标提供指导。

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