Two cDNA libraries from the midgut of Haemaphysalis flava at different blood-feeding phases, were successfully constructed.
Transcripts putatively associated with blood digestion were classified into eight large categories.
Compared with partially engorged ticks, there were 3940 up-regulated and 1568 down-regulated genes in fully engorged ticks.
Expression patterns of nine analyzed by qPCR showed similar to those determined using RNA-Seq.