Mapping of QTLs for Grain Shape Using Chromosome Single Segment Substitution Lines in Rice (Oryza sativa L.) Mapping Quantitative Trait Loci for Grain Appearance Traits of Rice Using a Recombinant Inbred Line Population Correlations between Rice Grain Shapes and Main Qualitative Characteristics Dissection of QTLs for Grain Shape Traits in Rice in Different Years Mapping Grain Weight and Shape QTLs Using Four Sister Near Isogenic Lines (SNILs) of Rice (Oryza Sativa L.) Analysis of Epistatic and Additive Effects of QTLs for Grain Shape Using Single Segment Substitution Lines in Rice (Oryza sativa L.) Correlation Analysis and QTL Mapping of Grain Shape and Grain Weight in Rice under Upland and Lowland Environments A Kelch Motif-Containing Serine/Threonine Protein Phosphatase Determines the Large Grain QTL Trait in Rice The Biological Characters of Giant Embryo Rice