Identification of genes specifically or preferentially expressed in maize silk reveals similarity and diversity in transcript abundance of different dry stigmas

Table 1 Overrepresented functional GO terms of MS-specific/preferential genes

GO Term^a	Term type^a	Query item^b	Query total^c	Bg item^d	Bg total^e	P-value^f	FDR^g
amino acid transport	P	10	900	52	39203	2.80E-07	0.00021
protein amino acid phosphorylation	P	93	900	2387	39203	2.70E-06	0.00082
oligopeptide transport	P	12	900	105	39203	6.10E-06	0.0011
fatty acid metabolic process	P	14	900	187	39203	0.00013	0.014
lipid transport	P	10	900	104	39203	0.00015	0.014
cell wall macromolecule catabolic process	P	8	900	73	39203	0.00028	0.022
chitin catabolic process	P	6	900	43	39203	0.00044	0.03
drug transport	P	11	900	154	39203	0.00097	0.05
integral to membrane	C	75	900	2156	39203	0.00055	0.029
peroxisome	C	5	900	33	39203	0.0009	0.029
protein serine/threonine kinase activity	F	92	900	2248	39203	4.40E-07	0.00013
monooxygenase activity	F	33	900	553	39203	1.30E-06	0.00029
heme binding	F	43	900	876	39203	6.20E-06	0.0007
acyltransferase activity	F	16	900	187	39203	8.80E-06	0.0008
amino acid transmembrane transporter activity	F	6	900	28	39203	3.60E-05	0.0024
electron carrier activity	F	42	900	914	39203	3.50E-05	0.0024
transferase activity, transferring hexosyl groups	F	28	900	542	39203	9.40E-05	0.0053
sugar binding	F	12	900	150	39203	0.00021	0.0095
secondary active transmembrane transporter activity	F	22	900	421	39203	0.00042	0.018
chitinase activity	F	6	900	43	39203	0.00044	0.018
lipid binding	F	13	900	202	39203	0.00093	0.035
drug transmembrane transporter activity	F	11	900	154	39203	0.00097	0.035

^aGO term classifications: P, Biological Process; C, Cellular Component; F, Molecular Function.
^bQuery item number in MS preferential expressed genes.
^cTotal annotated query item number in agriGO.
^dQuery item number in maize genome version 5a.
^eTotal annotated item number in maize genome version 5a.
^fDetermined by Fisher exact test.
^gDetermined by Benjamini–Hochberg–Yekutieli procedure.
GO terms with P-value < 0.001 and FDR ≤ 0.05 were regarded as overrepresented terms.

ISSN: 1471-2164