Table 2 Overrepresented Gene Ontology biological process terms in 28 DPA vs 21 DPA fiber. Transcripts that had higher expression (fold change ≥2) at 28 vs 21 DPA in both Gb and Gh fiber were analyzed for over-representation of GO biological process terms (p < 0.007, q < 0.05). False discovery rate q-values (FDR) were determined as in Table 1 (see p-values in Additional file 8)

GO:0000186

activation of MAPKK activity

GO:0010215

cellulose microfibril organization

GO:0015996

chlorophyll catabolic process

GO:0030206

chondroitin sulfate biosynthetic process

GO:0035434

copper ion transmembrane transport

GO:0010143

cutin biosynthetic process

GO:0006535

cysteine biosynthetic process from serine

GO:0006014

D-ribose metabolic process

GO:0042732

D-xylose metabolic process

GO:0006000

fructose metabolic process

GO:0006012

galactose metabolic process

GO:0009298

GDP-mannose biosynthetic process

GO:0010417

glucuronoxylan biosynthetic process

GO:0006424

glutamyl-tRNA aminoacylation

GO:0019310

inositol catabolic process

GO:0006559

L-phenylalanine catabolic process

GO:0007142

male meiosis II

GO:0019307

mannose biosynthetic process

GO:0009556

microsporogenesis

GO:0010105

negative regulation of ethylene mediated signaling pathway

GO:0009878

nodule morphogenesis

GO:0018106

peptidyl-histidine phosphorylation

GO:0009915

phloem sucrose loading

GO:0010205

photoinhibition

GO:0010043

response to zinc ion

GO:0009834

secondary cell wall biogenesis

GO:0005982

starch metabolic process

GO:0010345

suberin biosynthetic process

GO:0005985

sucrose metabolic process

GO:0007178

transmembrane receptor protein serine/threonine kinase signaling pathway

GO:0005992

trehalose biosynthetic process

GO:0006572

tyrosine catabolic process