National;
Key;
Facility;
for;
Crop;
Gene;
Resources;
and;
Genetic;
Improvement/Institute;
of;
Crop;
Sciences;
Chinese;
Academy;
of;
AgriculturalSciences;
Beijing;
100081;
P.R.;
China;
QTL检测; 酸含量; 鉴定; 重组自交系; 生物合成基因; RIL群体; 稻米; 底层;