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由于马铃薯（Solanumtuberosum）为异源四倍体（2n＝4x＝48），表现为高度的遗传杂合性，因而选育具有多个农艺性状优良的品种是十分困难的。病毒病是导致马铃薯品种迅速退化的主要原因，严重威胁着马铃薯的生产。近10年来，国内外研究人员在探索利用病毒外壳蛋白基因、美国商
Because Solanum tuberosum is allotetraploid (2n = 4x = 48), showing a high degree of genetic heterozygosity, it is very difficult to breed varieties with many agronomic traits. Virus disease is the main cause of the rapid deterioration of potato varieties, a serious threat to potato production. In the past 10 years, researchers at home and abroad have been exploring the use of the viral coat protein gene and American business