Comparative proteomics analysis of superior and inferior spikelets in hybrid rice during grain filling and response of inferior spikelets to drought stress using isobaric tags for relative and absolute quantification

Representative MS/MS spectrum showing the peptides from glycine-rich RNA-binding protein (No. 44, peptide sequence: GFGFVTFDEK) was labeled with iTRAQ (A-116, B-119, C-117, D-121, E-118) tags.141