Development of a DNA marker for detecting tolerance to cold-induced seed coat discoloration in soybean

在黄豆中，当植物开花后暴露在低温下时，种皮变色，这种现象被称为冷诱导变色，缩写为Cd。Cd降低了黄豆的商业价值，因此需要DNA标记来培育耐Cd品种。然而，人们甚至不知道低温是如何导致种皮变色的。在这项研究中，我们研究了镉的发生和耐受机制。此外，根据这些发现，我们开发了一个DNA标记，可以有效地用于耐镉植物的选择。

In yellow soybean, seed coat discoloration occurs when plants are exposed to low temperature after the onset of flowering, a phenomenon named cold-induced discoloration abbreviated as CD. CD reduces the commercial value of yellow soybean, and therefore DNA markers are required tocreate CD-tolerant cultivars. However, it was not even known how low temperature causes discoloration in the seed coat. In this study, we investigated the occurrence and tolerance mechanisms of CD. Furthermore, based on the findings, we developed a DNA marker being effective in selecting the CD-tolerant plants.