Gene Expression Profiles of Long-Chain Acyl-Coenzyme A Dehydrogenase, Nuclear Distribution C-Containing Protein 3, and Receptor Tyrosine Kinase Tie-1 in Swimming Larva of Sea Cucumber Apostichopus japonicus

The sea cucumber, Apostichopus japonicus, is one of the most valuable aquatic species. color body wall and appearance are important for value cucumbers. To examine expression pattern long-chain acyl-coenzyme A dehydrogenase (LCAD), nuclear distribution C-containing protein 3 (NUDCD3), receptor tyrosine kinase Tie-1 (TIE1), previously reported as differently expressed genes during pigmentation we analyzed temporal profiles LCAD, NUDCD3, TIE1 mRNAs in LED-exposed light-shielded A. japonicus. Real-time quantitative PCR revealed that from juveniles at 40–60 days post-fertilization (dpf) exhibited increasing patterns compared to those an early developmental larva (6-dpf). At 60-dpf juveniles, LCAD mRNA levels individuals were higher than ones, whereas 40-dpf 50-dpf NUDCD3 was condition (p<0.05). In pigmented (90-dpf), tended show red green but there a conversely level larva. situ examination 6-dpf both mainly internal organs surface. Together, these results may provide insights into differential gene process cucumber.