Cloning and Expression of Sox2 and Sox9 in Embryonic and Gonadal Development of Lutraria sieboldii

The Sox family plays essential roles as transcription factors in vertebrates; however, little is known about the Lutraria sieboldii. L. sieboldii are pleasant to eat with a short growth cycle and have become one of best bottom-seeded enrichment species Guang Xi. In this study, Sox2 (named LsSox2) Sox9 LsSox9) from were cloned, their expression patterns analyzed. length LsSox2 gene coding sequence was 1011 bp, encoding 336 amino acids, LsSox9 1449 482 acids. had its highest levels ovary, which 356 times those testis, whereas presented higher 6 more highly expressed than ovary. exhibited during morula stage, 20 that D-shaped larvae or zygote. two peaks, at four-cell stage other trochophore while lowest 73 zygote stage. During gonadal development, mature 756 testis. testis emission These results indicate may play important embryonic development.