中文摘要：

花和豆荚数字每植物是位于大豆产量下面的重要农学的特点。为花和豆荚相关的特点检测的到目前为止量的特点 loci (QTL ) 主要集中了于最后的阶段，并且可能因此忽略了在一个特定的发展阶段期间表示的基因效果。这里，为花和豆荚数字的 QTL 的动态表情用生来的线(RIL ) 和一个连接 306 个标记印射的 152 recombinant 被识别。宽基因变化在 RIL 之中被发现；17 无条件并且 18 有条件的 QTL 在二年在不同发展阶段为二个特点被检测。一些 QTL 仅仅在越过二的舞台或更多上演的点被检测，显示那朵大豆花和豆荚数字开发可以被时间依赖者基因表示管理。三主要 QTL (qfn-Chr18-2， qfn-Chr20-1，和 qfn-Chr19 ) 为花数字被检测，并且二主要 QTL (qpn-Chr11 和 qpn-Chr20 ) 为豆荚数字被检测。他们解释的 phenotypic 变化从 6.1% ～ 34.7%。连接到这些 QTL 的标记能在帮助标记的选择被使用增加大豆花和豆荚数字，与增加大豆产量的最终的目的。为有报导的相关基因的花和豆荚数字特点的 QTL 区域的比较以前证明七和四相关基因分别地位于 qfn-Chr11 和 qfn-Chr19 的 QTL 区域。这些结果为发展相关的基因的花和豆荚的好印射并且克隆提供一个基础。

英文摘要：

Flower and pod numbers per plant are important agronomic traits underlying soybean yield. So far quantitative trait loci （QTL） de- tected for flower and pod-related traits have mainly focused on the final stage, and might therefore have ignored genetic effects expressed during a specific developmental stage. Here, dynamic expressions of QTL for flower and pod numbers were identified using 152 recom- binant inbred lines （RILs） and a linkage map of 306 markers. Wide genetic variation was found among RILs; 17 unconditional and 18 conditional QTL were detected for the two traits at different developmental stages over two years. Some QTL were detected only at one stage and others across two or more stages, indicating that soybean flower and pod numbers development may be governed by time-dependent gene expression. Three main QTL （qfn-Chrl8-2, qfn-Chr20-1, and qfn-Chr19） were detected for flower number, and two main QTL （qpn-Chrll and qpn-Chr20） were detected for pod number. The phenotypic variation explained by them ranged from 6.1% to 34.7%. The markers linked to these QTL could be used in marker-assisted selection for increasing soybean flower and pod numbers, with the ultimate aim of increasing soybean yield. Comparison of the QTL regions for flower and pod numbers traits with the related genes reported previously showed that seven and four related genes were located in the QTL regions of qfn-Chr11 and qfn-Chr19, respectively. These results provide a basis for free mapping and cloning of flower and pod development-related genes.