Materials and Methods
Experimental animals and RNA isolation. Female broodstock of
P. monodon used for construction of a cDNA library was collected
from Satun (west of peninsular Thailand). In addition, juvenile (4-
month-old) and broodstock-sized shrimp used for RT-PCR analysis
were purchased from a commercial farm in Chachoengsao (eastern
Thailand) and wild-caught from Chonburi (Gulf of Thailand, east),
respectively. Total RNA was extracted from ovaries or testes of
each shrimp using TRI-REAGENT (Molecular Research Center).
Messenger (m) RNA was further purified using a QuickPrep Micro
mRNA Purification Kit (GE Healthcare) and kept under the
absolute ethanol at −70o C prior to reverse transcription.