论文部分内容阅读
种子滞绿(stay-green)是豆科植物中的普遍现象,最典型的例子就是孟德尔的绿粒豌豆。本文对十余份种子滞绿的大豆品种进行了初步分析,发现滞绿性状表型上和遗传上呈现多样性特征。所分析的滞绿变异没有显著影响到叶片衰老进程中光合作用效率的下降,但是明显影响衰老叶片中蛋白的降解与转运,包括可溶性蛋白的降解与转运。我们对‘绿楂豆’等几个品种材料的滞绿性状的遗传和分子基础进行了初步的探索,发现滞绿性状可能是受到两对遗传基因的控制,很可能就是SGR1和SGR2。我们的初步分析结果提示,大豆中受SGR1和SGR2共同调控的滞绿性状可能是源自于同一个早期变异事件。
Stay-green is a common phenomenon in legumes. The most typical example is Mendel’s green pea. In this paper, a preliminary analysis of more than ten seeds of greening soybean was carried out. It was found that the characters of greening traits were phenotypically and genetically diverse. The variation of green color indicated no significant effect on the decline of photosynthesis efficiency in leaf senescence, but significantly affected the degradation and transport of protein in aging leaves, including the degradation and transport of soluble protein. We conducted a preliminary exploration on the genetic and molecular basis of lag traits in several varieties of ’hawthorn’ and found that lag traits may be controlled by two pairs of genes, most likely SGR1 and SGR2. Our preliminary analysis suggests that the green-trait traits in soybean that are regulated by SGR1 and SGR2 may be due to the same early mutation event.