Heterologous oligonucleotide microarrays for transcriptomics in a non-model species; a proof-of-concept study of drought stress in Musa

Table 1 Functional gene annotations ("Biological Processes") of Musa foliar transcripts identified as being >2-fold differentially regulated in response to 3-weeks chronic drought stress.

Functional Category Biological Processes	Gene Count
	>2-fold total	%	p value	>2-fold up	%	>2-fold down	%
other cellular processes	588	22.3	3.5 × 10^-5	347	21.9	265	22.6
other metabolic processes	574	21.8	0.0088	335	21.2	265	22.6
unknown biological processes	368	14.0	1.05 × 10^-21	242	15.3	141	12.1
protein metabolism	226	8.6	0.028	143	9.0	98	8.4
response to stress	132	5.0	0.017	82	5.2	63	5.4
response to abiotic or biotic stimulus	137	5.2	0.032	84	5.3	61	5.2
developmental processes	104	4.0	7.73 × 10^-7	59	3.7	47	4.0
transport	113	4.3	0.031	68	4.3	48	4.1
other biological processes	102	3.9	0.004	69	4.4	37	3.2
cell organization and biogenesis	91	3.5	0.028	54	3.4	43	3.7
signal transduction	66	2.5	0.051	43	2.7	26	2.2
transcription	72	2.7	0.0003	38	2.4	35	3.0
electron transport or energy pathways	37	1.4	7.38 × 10^-6	8	0.5	29	2.5
DNA or RNA metabolism	21	0.8	0.078	11	0.7	12	1.0
SUM	2631	100		1583	100		100

ISSN: 1471-2164