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

在黄豆中，当植物在开花后暴露在低温下时会发生种皮变色，这种现象被称为冷致变色（简称CD）。CD降低了黄豆的商业价值，因此需要DNA标记来创造耐CD的品种。然而，人们甚至不知道低温是如何导致种皮变色的。在本研究中，我们研究了CD的发生和耐受性机制，并在此基础上开发了一个DNA标记，可以有效地选择CD抗性植物。

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.