of;
Crop;
Heterosis;
and;
Utilization;
Ministry;
of;
Education/Beijing;
Key;
Laboratory;
of;
Crop;
Genetic;
Improvement~China;
Agricultural;
University;
Beijing;
100193;
P.R.;
China;
Sweetpotato;
Research;
Center;
Xuzhou;
221121;
P.R.;
Ch;
ina;
QTL定位; 淀粉含量; 甘薯; 分子标记辅助育种; 数量性状基因座; 徐薯18; 区间作图; 标记物;