Evolutionary Causes & Consequences of Metabolic Variation in Arabidopsis & Arabis

小行星9527725 杂种优势是农业和遗传学中许多问题的核心。 杂合体适合度的增加（杂种优势或杂种优势现象）有助于许多作物物种的高产，并可能维持野生种群的遗传变异。 尽管它们的重要性，影响杂种优势和其他形式的遗传变异的因素在遗传和分子水平上知之甚少。 这项研究提出了一个简化的遗传方法来解决这个问题，通过研究重要生理性状的数量遗传变异的原因。 染色体的位置和DNA序列变异的基因，可能控制代谢将进行检查，以了解影响植物种群的遗传变异，活力，健身或产量水平的因素。 这项工作可能对农业、林业和了解自然种群有重要的好处。

9527725 Mitchell-Olds Hybrid vigor is central to many questions in agriculture and genetics. Increased fitness of heterozygotes (the phenomenon of hybrid vigor or heterosis) contributes to high yield in many crop species, and may maintain genetic variation in wild populations. Despite their importance, the factors influencing hybrid vigor and other forms of genetic variation are poorly understood at the genetic and molecular level. The research proposed takes a reductionist genetic approach to this problem by studying causes of quantitative genetic variation in important physiological traits. Chromosomal locations and DNA sequence variation of genes that may control metabolism will be examined in an effort to understand the factors influencing levels of genetic variation, vigor, and fitness or yield in plant populations. This work may have important benefits in agriculture, forestry, and understanding of natural populations.