Development of markers for cytokinin based yields in soybean.

这项研究通过鉴定关键生长信号基因及其在植物育种计划中的未来应用，提供了提高豆科作物产量的潜力。这里提出的研究是建立在Ashikari et. al. （2005; Science 309:741）的研究基础上的，该研究揭示了一种DNA标记，可以使水稻产量增加40%。该高产标志是一种缺乏的植物激素降解酶细胞分裂素氧化酶（CKX），它限制了细胞分裂素激素的作用，而细胞分裂素激素是植物生长的强大调节剂。这一发现表明，细胞分裂素在水稻和其他植物（如豆类）的产量中发挥着重要作用。为了研究对加拿大具有特殊经济意义的豆科植物大豆的影响，我们将完成种子细胞分裂素和表达的综合分析

This research offers the potential of greater legume crop yields through the identification of key growth signaling genes and their future use in plant breeding programs. The research proposed here builds on the word of Ashikari et. al. (2005; Science 309:741) that revealed a DNA marker that accounts for increases in rice yields of forty percent. This high-yield marker was found to be a deficient plant hormone degrading enzyme cytokinin oxidase (CKX) - which limits the effects of cytokinin hormones which are strong regulators of plant growth. This discovery suggests that there is a major role for the cytokinins in the yield of rice and possibly other plants, such as legumes. To investigate the impact on soybean, a legume of particular economic significance to Canada, we will complete comprehensive analyses of seed cytokinins and the expression of