根据其他植物PAL基因的DNA序列的保守区域,设计了一对简并引物,经PCR扩增,得到一条862 bp的特异性扩增带。将PCR扩增产物构建到T-载体并测序,获得了862 bp DNA序列。通过分析所得的862 bp DNA序列及其编码的氨基酸序列,与其他植物PAL基因的DNA序列和蛋白质序列分别进行比较,证实了所得序列为银杏PAL基因的部分序列。Gbpal1已经被Genebank收录,序列号为AY578145。Southern杂交结果表明银杏PAL是一个多基因家族。
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