Males and females share the same genome, thus, phenotypic divergence requires differential gene expression and sex-specific regulation. Accordingly, the analysis of expression patterns is pivotal to the understanding of sex determination mechanisms. Many bivalves are stable gonochoric species, but the mechanism of gonad sexualization and the genes involved are still unknown. Moreover, during th...

The assessment of clam yield potential and the identification of suitable sites for clam rearing are a necessary step to improve the economic and environmental sustainability of the exploitation activities in a regulated fishery. We discuss the development, validation and application of a method for estimating the clam yield potential of a northern Adriatic lagoon (Sacca di Goro, Italy) by comb...

A multi-method approach was employed to compare the responses of Glutatione Transferases (GSTs) in the gills and hepatopancreas of Venerupis philippinarum to microcystins (MCs) toxicity. In this way, using the cytosolic fraction, the enzymatic activity of GSTs, superoxide dismutase (SOD), serine/threonine protein phosphatases (PPP2) along with the gene expression levels of four GST isoforms (pi...

Brown ring disease (BRD) causes high mortalities in the introduced Manila clam Ruditapes philippinarum cultured in western Europe. The etiological agent of BRD, Vibrio tapetis, adheres to and disrupts the production of the periostracal lamina, causing the anomalous deposition of periostracum around the inner shell. Because the primary sign of BRD is found outside the soft tissues, the processes...

Tu hài (Lutraria rhynchaena) là loài nhuyễn thể hai mảnh vỏ, phân bố chủ yếu tại Vân Đồn, tỉnh Quảng Ninh. hiện nay đang được khai thác và nuôi để làm thực phẩm. Nghề tu cũng có nguy cơ thiếu bền vững do dịch bệnh thường xuyên xảy ra. Hiện tượng di nhập nước ngoài về tiêu thụ Việt Nam rất phổ biến. Mặt khác, việc định danh ở còn chưa thật sự rõ ràng dựa vào hình thái. Nghiên cứu này, trên sở tr...

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 sequen...

Vibrio tapetis is a marine bacterium causing Brown Ring Disease (BRD) in the Manila clam Ruditapes philippinarum. V. tapetis biofilm formation remains unexplored depite the fact that it might be linked to pathogenicity. Our objectives were to characterize the in vitro biofilm formation of V. tapetis and evaluate the effects of culture conditions. Biofilm structure and its matrix composition wer...