To clone the testis and ovary specific expression genes of Marsupenaeus japonicus, we constructed two full-length cDNA libraries using the SMART cDNA library construction kit (Clontech). Total RNAs were isolated from tests and ovaries using RDP, a reagent made by us and modified from that used by Chomczynski and Sacchi (1987) for the simultaneous isolation of RNA, DNA, and protein. Oligotex (QIAGEN) was used to separate the mRNA of testes and ovaries from total RNA. The “anchor first-strand cDNA containing ...