RNA-seq of B73 and Mo17 BC1 population, low  cadmium pool
To map and  clone the kernel cadmium content-related genes, three BC1 populations,  (B73/Mo17)/Mo17, (Jing724/Mo17)/Mo17 and (Huangzaosi/Mo17)/Mo17 were  generated.Of these materials, Mo17 is a maize inbred line with higher cadmium  content in grains while B73, Jing724 and Huangzaosi are the inbred lines with  lower cadmium content. Three independent BSR-seq assays were carried out to  map the main kernel cadmium content-related genes with the RNAs of two  extreme plant pools (low cadmium content pool and high cadmium content pool)  from the three BC1 populations, respectively.