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The molecular and endocrine basis of flatfish metamorphosis

Artikel i vetenskaplig tidskrift
Författare Deborah M Power
Ingibjörg Einarsdottir
K Pittman
G Sweeney
Jon Hildahl
M.A. Campinho
N. Silva
Ö Saele
M Galay-Burgos
H. Smaradottir
Björn Thrandur Björnsson
Publicerad i Reviews in Fisheries Science
Volym 16
Nummer/häfte S1
Sidor 93-109
ISSN 1064-1262
Publiceringsår 2008
Publicerad vid Zoologiska institutionen
Sidor 93-109
Språk en
Länkar dx.doi.org/10.1080/1064126080232537...
Ämnesord Atlantic halibut, endocrine control, hormones, metamorphosis, molecular tools, phenotype and genotype,
Ämneskategorier Zoofysiologi

Sammanfattning

A significant component of aquaculture is the production of good quality larvae, and, in the case of flatfish, this is tied up with the change from a symmetric larva to an asymmetric juvenile. Despite the pioneering work carried out on the metamorphosis of the Japanese flounder (Paralichthys olivaceus) and summer flounder (Paralichthys dentatus), the underlying molecular basis of flatfish metamorphosis is still relatively poorly characterized. It is a thyroid hormone (TH) driven process, and the role of other hormones in the regulation of the process along with the interplay of abiotic factors are still relatively poorly characterized as is the extent of tissue and organ remodeling, which underlie the profound structural and functional modifications that accompany the larval/juvenile transition. The isolation of genes for hormones, receptors, binding proteins, and other accessory factors has provided powerful tools with which to pursue this question. The application of molecular methodologies such as candidate gene approaches and microarray analysis coupled to functional genomics has started to contribute to understanding the complexity of tissue and organ modifications that accompany flatfish metamorphosis. A better understanding of the biology of normal metamorphosis is essential to identify factors contributing to abnormal metamorphosis.

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