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

Many flatfish species, such as Scophthalmus maximus, Paralichthys olivaceus, Solea senegalensis, are extensively cultured worldwide. In flatfishes, eye migration varies among different species and even within the same species. The genetic mechanism underlying eye migration is still unclear, and it i...

Full description

Bibliographic Details
Main Authors: Jubin Xing, Zhonghe Ke, Liping Liu, Chenhong Li, Xiaoling Gong, Baolong Bao
Format: Article
Language:English
Published: KeAi Communications Co., Ltd. 2020-07-01
Series:Aquaculture and Fisheries
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2468550X19301947
id doaj-6bf4692213c0410796f0314432103edf
record_format Article
collection DOAJ
language English
format Article
sources DOAJ
author Jubin Xing
Zhonghe Ke
Liping Liu
Chenhong Li
Xiaoling Gong
Baolong Bao
spellingShingle Jubin Xing
Zhonghe Ke
Liping Liu
Chenhong Li
Xiaoling Gong
Baolong Bao
Eye location, cranial asymmetry, and swimming behavior of different variants of Solea senegalensis
Aquaculture and Fisheries
Flatfish
Eye migration
Left/right asymmetry
Senegalese sole
author_facet Jubin Xing
Zhonghe Ke
Liping Liu
Chenhong Li
Xiaoling Gong
Baolong Bao
author_sort Jubin Xing
title Eye location, cranial asymmetry, and swimming behavior of different variants of Solea senegalensis
title_short Eye location, cranial asymmetry, and swimming behavior of different variants of Solea senegalensis
title_full Eye location, cranial asymmetry, and swimming behavior of different variants of Solea senegalensis
title_fullStr Eye location, cranial asymmetry, and swimming behavior of different variants of Solea senegalensis
title_full_unstemmed Eye location, cranial asymmetry, and swimming behavior of different variants of Solea senegalensis
title_sort eye location, cranial asymmetry, and swimming behavior of different variants of solea senegalensis
publisher KeAi Communications Co., Ltd.
series Aquaculture and Fisheries
issn 2468-550X
publishDate 2020-07-01
description Many flatfish species, such as Scophthalmus maximus, Paralichthys olivaceus, Solea senegalensis, are extensively cultured worldwide. In flatfishes, eye migration varies among different species and even within the same species. The genetic mechanism underlying eye migration is still unclear, and it is the key to improve metamorphosis in flatfish aquaculture and understand flatfish evolution. In this study, the high frequency of eye location variants in an artificial S. senegalensis 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 side. The 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 evolution. We 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 bottom. The 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 migration. Finally, we proposed a hypothesis for the asymmetric origin of flatfish that provides reasonable explanations for the selective advantages of primitive flatfish species.
topic Flatfish
Eye migration
Left/right asymmetry
Senegalese sole
url http://www.sciencedirect.com/science/article/pii/S2468550X19301947
work_keys_str_mv AT jubinxing eyelocationcranialasymmetryandswimmingbehaviorofdifferentvariantsofsoleasenegalensis
AT zhongheke eyelocationcranialasymmetryandswimmingbehaviorofdifferentvariantsofsoleasenegalensis
AT lipingliu eyelocationcranialasymmetryandswimmingbehaviorofdifferentvariantsofsoleasenegalensis
AT chenhongli eyelocationcranialasymmetryandswimmingbehaviorofdifferentvariantsofsoleasenegalensis
AT xiaolinggong eyelocationcranialasymmetryandswimmingbehaviorofdifferentvariantsofsoleasenegalensis
AT baolongbao eyelocationcranialasymmetryandswimmingbehaviorofdifferentvariantsofsoleasenegalensis
_version_ 1721559438296350720
spelling doaj-6bf4692213c0410796f0314432103edf2021-04-02T15:40:59ZengKeAi Communications Co., Ltd.Aquaculture and Fisheries2468-550X2020-07-0154182186Eye location, cranial asymmetry, and swimming behavior of different variants of Solea senegalensisJubin Xing0Zhonghe Ke1Liping Liu2Chenhong Li3Xiaoling Gong4Baolong Bao5Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources (Shanghai Ocean University), Ministry of Education, International Research Center for Marine Biosciences at Shanghai Ocean University, Ministry of Science and Technology, National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, 201306, China; Fishery Technical Extension Station of Zhuji City, Zhuji, Zhejiang, 311800, ChinaKey Laboratory of Exploration and Utilization of Aquatic Genetic Resources (Shanghai Ocean University), Ministry of Education, International Research Center for Marine Biosciences at Shanghai Ocean University, Ministry of Science and Technology, National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, 201306, ChinaKey Laboratory of Exploration and Utilization of Aquatic Genetic Resources (Shanghai Ocean University), Ministry of Education, International Research Center for Marine Biosciences at Shanghai Ocean University, Ministry of Science and Technology, National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, 201306, ChinaKey Laboratory of Exploration and Utilization of Aquatic Genetic Resources (Shanghai Ocean University), Ministry of Education, International Research Center for Marine Biosciences at Shanghai Ocean University, Ministry of Science and Technology, National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, 201306, ChinaKey Laboratory of Exploration and Utilization of Aquatic Genetic Resources (Shanghai Ocean University), Ministry of Education, International Research Center for Marine Biosciences at Shanghai Ocean University, Ministry of Science and Technology, National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, 201306, China; Corresponding author. 999 Huchenghuan Road, Shanghai Ocean University, Shanghai, 201306, China.Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources (Shanghai Ocean University), Ministry of Education, International Research Center for Marine Biosciences at Shanghai Ocean University, Ministry of Science and Technology, National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, 201306, China; Corresponding author. 999 Huchenghuan Road, Shanghai Ocean University, Shanghai, 201306, China.Many flatfish species, such as Scophthalmus maximus, Paralichthys olivaceus, Solea senegalensis, are extensively cultured worldwide. In flatfishes, eye migration varies among different species and even within the same species. The genetic mechanism underlying eye migration is still unclear, and it is the key to improve metamorphosis in flatfish aquaculture and understand flatfish evolution. In this study, the high frequency of eye location variants in an artificial S. senegalensis 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 side. The 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 evolution. We 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 bottom. The 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 migration. Finally, we proposed a hypothesis for the asymmetric origin of flatfish that provides reasonable explanations for the selective advantages of primitive flatfish species.http://www.sciencedirect.com/science/article/pii/S2468550X19301947FlatfishEye migrationLeft/right asymmetrySenegalese sole