Table 2. Statistical analysis of blast results of cotton unigenes identified in RNA-seq libraries.

Database	Total Unigenes	Mapped Unigenes
COG	33324	6559 (19.68%)
Nr	33324	20532 (61.61%)
Nt	33324	17543 (52.64%)
Swissprot	33324	12650 (37.96%)
Trembl	33324	20449 (61.36%)

All 33324 new unigenes were mapped to five databases.