Mapping of DNA sex-specific markers and genes related to sex differentiation in turbot (Scophthalmus maximus).

Marine Biotechnology
Ana ViñasPaulino Martínez

Abstract

Production of all-female populations in turbot can increase farmer's benefits since sexual dimorphism in growth in this species is among the highest within marine fish, turbot females reaching commercial size 3-6 months earlier than males. Puberty in males occurs earlier than in females, which additionally slows their growth. Thus, elucidating the mechanisms of sex determination and gonad differentiation is a relevant goal for turbot production. A ZZ/ZW sex determination mechanism has been suggested for this species, and four sex-related quantitative trait loci (QTL) were detected, the major one located in linkage group (LG) 5 and the three minor ones in LG6, LG8, and LG21. In the present work, we carried out a linkage analysis for several sex-related markers: (1) three anonymous sex-associated RAPD and (2) several candidate genes related to sex determination and gonad differentiation in other species (Sox3, Sox6, Sox8, Sox9, Sox17, Sox19, Amh, Dmrta2, Cyp19a, Cyp19b). We focused our attention on their co-localization with the major and minor sex-related QTL trying to approach to the master sex-determining gene of this species. Previously described growth-related QTL were also considered since the association observed between g...Continue Reading

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Citations

Mar 20, 2014·Medical Oncology·Siquan ZhangXianfeng Ding
Jan 9, 2016·Genome Génome / Conseil National De Recherches Canada·Yulong HuJie Kong
Oct 18, 2015·Marine Biotechnology·Peng LiuGen Hua Yue
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May 16, 2015·Marine Biotechnology·Takashi KoyamaTakashi Sakamoto
Dec 4, 2014·Marine Genomics·Zhanjiang Liu
Aug 12, 2014·G3 : Genes - Genomes - Genetics·Xoana TaboadaPaulino Martínez

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