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Eye location, cranial asymmetry, and swimming behavior of different variants of solea senegalensis

Aquaculture and Fisheries 2020年第4期5卷 182-186页

作者： Jubin Xing Zhonghe Ke Liping Liu Chenhong Li Xiaoling Gong Baolong Bao Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources(Shanghai Ocean University) Ministry of EducationInternational Research Center for Marine Biosciences at Shanghai Ocean UniversityMinistry of Science and TechnologyNational Demonstration Center for Experimental Fisheries Science EducationShanghai Ocean UniversityShanghai201306China Fishery Technical Extension Station of Zhuji City ZhujiZhejiang311800China

Many flatfish species,such as Scophthalmus maximus,Paralichthys olivaceus,solea senegalensis,are extensively cultured *** flatfishes,eye migration varies among different species and even within the same *** genetic mechanism underlying eye migration is still unclear,and it is the key to improve metamorphosis in flatfish aquaculture and understand flatfish *** this study,the high frequency of eye location variants in an artificial *** population allowed us to investigate the eye preference during migration;completeness of the eye migration;and other related left-right asymmetric characteristics,such as asymmetrical skull remodeling and lying down on one *** different frequencies of eye preference during migration,completeness of the eye migration,and settling side suggest that they are determined by different genotypes and imply independent evolutionary events during flatfish *** found that the swimming time may be related to the completeness of eye migration,and further the migration of the eye,the more time the fish spent at the sea *** left-right asymmetric degrees of not only the frontal bones and lateral ethmoids but also the jaw bone,including the premaxillary,maxillary,and dentary bones,depend on the completeness of eye mi***,we proposed a hypothesis for the asymmetric origin of flatfish that provides reasonable explanations for the selective advantages of primitive flatfish species.

关键词： Flatfish Eye migration Left/right asymmetry senegalese sole

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