INRA, UMR 759 LEPSE, 2 Place Viala F-34000, Montpellier, France.
Curr Opin Plant Biol. 2010 Apr;13(2):206-12. doi: 10.1016/j.pbi.2009.12.012. Epub 2010 Jan 25.
Plants have acquired a variety of whole-plant protection mechanisms in response to abiotic stresses, often at the expenses of performance. Hence, a given trait can have positive, negative or no effect depending on the stress scenario. A new approach has emerged that dissects yield and integrative traits that influence stress tolerance into heritable traits (e.g. sensitivity parameters or architectural traits) by using phenotyping platforms with model-assisted methods. The genetic and physiological mechanisms accounting for the variability of these traits and their effects on yield are considered in a second step. Effects of traits on yield are analysed via a combination of modelling and field experiments, which allows identification of the stress scenarios where a given allele has favourable effects.
植物已经获得了多种针对非生物胁迫的全株保护机制，这些机制往往会以牺牲性能为代价。因此，给定的性状可能会根据胁迫情况产生积极、消极或没有影响。一种新的方法已经出现，它通过使用具有模型辅助方法的表型平台，将影响胁迫耐受性的产量和综合性状分解为可遗传的性状（例如，敏感性参数或结构性状）。在第二步中，考虑了这些性状的遗传和生理机制及其对产量的影响。通过组合建模和田间试验来分析性状对产量的影响，这可以确定给定等位基因具有有利影响的胁迫情况。
