Dissection of QTLs for Hull Silicon Content on the Short Arm of Rice Chromosome 6

The QTL qHUS6 for hull silicon content in rice was previously located on the short arm of rice chromosome 6.By using an F2:3 population segregating in the RM587-RM19784 region harboring qHUS6 in an isogenic background,two QTLs for hull silicon content were detected,of which qHUS6-1 was located in the distal region and qHUS6-2 in the region proximal to the centromere.Three rice plants carrying small heterozygous segments in the target region were selected,of which two covered the qHUS6-1 region and the other...