Table 2. statistics of functional annotation of unigenes in public databases.

Public database	Number of Unigenes	Percentage (%)
Annotated in NR	29,657	60.75
Annotated in NT	30,551	62.58
Annotated in KEGG	5,444	11.15
Annotated in SwissProt	19,354	39.64
Annotated in PFAM	17,869	36.6
Annotated in GO	23,249	47.62
Annotated in KOG/COG	10,073	20.63
Annotated in all Databases	2,592	5.3
Annotated in at least one Database	34,049	69.74
Total Unigenes	48,817	100