Key;
Laboratory;
of;
Crop;
Genetic;
Improvement/Laboratory;
of;
Crop;
Heterosis;
and;
Utilization;
Ministry;
of;
Education/China;
Agricultural;
University;
Beijing;
100193;
P.R.;
China;
Sweetpotato;
Research;
Center;
Xuzhou;
221121;
P.R.;
China;
甘薯茎线虫病; 抗性基因; SRAP; 标记; 扩增多态性; 分离分析法; 相关序列; 徐薯18;