Differentially accumulated proteins identified by MS between hybrids and corresponding inbred lines during different sampling stages.

Notes
a Spot No. corresponds to labels in 2-DE map.
b Maximum fold changes among three groups (female line, male line, and hybrid combination) were calculated by ANOVA.Y/N means that difference between them was present or absent.
c Heterotic patterns were examined following Hoecker et al. (2008). “A” indicates protein spots that had no significant difference in average spot intensities with midparent value at 0.05 level. Average spot intensities of proteins that deviated significantly from the mid-parent value of the parental lines at the 0.05 cut-off level were defined as non-additive proteins. Based on this premise, “+” and “-” represented protein spot intensities identified in F1 hybrids that were similar to the high parent and low parent values, respectively. “+ +” and “- -” represented the protein spot intensities identified in F1 hybrids that were significantly different from the high parent and the low parent values, respectively. “+ -” represented the protein spot intensities identified in F1 hybrids that fell in between the mid-parent and the high parent or the mid-parent and the low parent values.
d Hybrids Xun928×Zong3 and Lx9801×Zong3 are abbreviated as XZ and LZ, respectively. D8, D10, and D12 represent sampling stages.
e GenBank accession number of protein spot.
f Protein name in NCBI database.
g Proteins scores were derived from ions scores as a non-probabilistic basis for ranking protein hits.
h Confidence interval of the identified protein.
i Gene name retrieved from maize sequence (http://ensembl.gramene.org/Zea_mays/Info/Index) by cDNA blast.
j Physical position determined by blast function in MaizeGDB.
Differentially accumulated proteins identified by MS between hybrids and corresponding inbred lines during different sampling stages.