The causes of asymmetry in the chelae of the mud crab Scylla paramamosain Estampador, 1950 (Decapoda: Brachyura: Portunidae)
文献类型： 外文期刊
作者： Zhan, Tianyong 1 ; Ma, Chunyan 2 ; Wang, Wei 2 ; Ma, Keyi 2 ; Chen, Wei 2 ; Jin, Xin 1 ; Ma, Lingbo 1 ; Zhao, Ming 2 ;
作者机构： 1.Shanghai Ocean Univ, Coll Fisheries & Life Sci, Shanghai 201306, Peoples R China
2.Chinese Acad Fishery Sci, East China Sea Fisheries Res Inst, Minist Agr, Key Lab Aquat Genom, Shanghai 200090, Peoples R China
关键词： chela handedness; Crustacea; genetics; handedness reversal
期刊名称：JOURNAL OF CRUSTACEAN BIOLOGY （ 影响因子：1.2； 五年影响因子：1.1 ）
ISSN： 0278-0372
年卷期： 2024 年 44 卷 4 期
页码：
收录情况： SCI
摘要： The asymmetry trait in brachyuran crabs is mostly expressed by the different sizes or particular details of the two chelae. The causes for this asymmetry have been rarely investigated in the economically important crab Scylla paramamosain Estampador, 1950. We found that the asymmetric chelae first appeared in the megalopa stage. The examination of four "right-handed" and two "left-handed" mothers and their 521 megalopa offspring indicated that this trait might not be influenced by dominant alleles, since 86.0% -99.0% of megalopae exhibited the right-handed phenotype in the four offspring of the right-handed mother, whereas about 93.1% and 100% megalopae exhibited the right-handed phenotype in the two left-handed-mothers' offspring. The percentage of left-handed individuals at different stages also supports this hypothesis. We provide evidence that the amputation of the handed chela will result in a "handedness reversal," and that the food type might influence the speed of the reversal. Crabs that were fed with fish blocks had a faster handedness reversal than those who were fed with commercial pellets feed, perhaps because of the increase in effort in individuals feeding on fish blocks.
- 相关文献
作者其他论文 更多>>
-
Rational Design of Alginate Lyase AlgL3199 for Thermal Stability and Specific Activity Enhancement
作者：Chen, Zhifang;Hao, Jianhua;Guo, Yingying;Zhu, Tiantian;Sun, Jingjing;Wang, Wei;Jiang, Chengcheng;Wang, Haiying;Chen, Zhifang;Hao, Jianhua
关键词：alginate lyase; thermal stability; site-directedmutagenesis; molecular docking
-
Computation and analysis of phenotypic parameters of Scylla paramamosain based on YOLOv11-DYPF keypoint detection
作者：Wu, Chong;Zhang, Shengmao;Wang, Wei;Wu, Zuli;Yang, Shenglong;Chen, Wei;Wu, Chong;Zhang, Shengmao;Zhang, Shengmao
关键词：Scylla paramamosain; Mud crab; Keypoint detection; YOLOv11; Multi-scale fusion; Dynamic upsampling; Support vector regression (SVR)
-
Screening and Characterization of Marine Bacillus atrophaeus G4 Protease and Its Application in the Enzymatic Hydrolysis of Sheep (Ovis aries) Placenta for the Preparation of Antioxidant Peptides
作者：Wang, Wei;Peng, Guoqing;Sun, Jingjing;Jiang, Chengcheng;Hao, Jianhua;Hao, Jianhua;Zhang, Xiu
关键词：protease;
Bacillus atrophaeus ; sheep (Ovis aries ) placenta; characterization; enzymatic hydrolysis; antioxidation -
Comparative analysis of morphological characteristics and nutritional quality in wild-caught and pond-reared female mud crab, Scylla paramamosain
作者：Jiang, Xiaodong;Liu, Minhai;Lin, Zhihua;Zheng, Xiafei;Jiang, Xiaodong;Liu, Minhai;Lin, Zhihua;Zheng, Xiafei;Wang, Wei
关键词：Scylla paramamosain; Wild-caught; Pond-reared; Morphometric analyses; Nutritional quality
-
Enhancing Landmark Point Detection in Eriocheir Sinensis Carapace with Differentiable End-to-End Networks
作者：Wu, Chong;Wang, Shuxian;Zhang, Shengmao;Zheng, Hanfeng;Wang, Wei;Yang, Shenglong;Wu, Chong;Zhang, Shengmao;Zheng, Hanfeng
关键词：Eriocheir sinensis; Chinese mitten crab; landmark detection; Gaussian heatmaps; deep convolutional neural network; DSNT module; generalization ability; power consumption
-
RNA virus diversity highlights the potential biosecurity threat posed by Antarctic krill
作者：Xu, Tingting;Zhao, Xianyong;Zhu, Jiancheng;Wang, Wei;Wang, Xinliang;Wang, Chong;Fan, Gangzhou;Zhang, Jichang;Zhao, Wenxiu;Zhang, Qingli;Xu, Tingting;Zhao, Xianyong;Zhu, Jiancheng;Wang, Wei;Wang, Xinliang;Wang, Chong;Fan, Gangzhou;Zhang, Jichang;Zhao, Wenxiu;Zhang, Qingli;Xu, Tingting;Zhao, Xianyong;Zhu, Jiancheng;Wang, Wei;Wang, Xinliang;Wang, Chong;Fan, Gangzhou;Zhang, Jichang;Zhao, Wenxiu;Zhang, Qingli;Loch, Thomas;Hao, Bin;Bondad-Reantaso, Melba G.;Alday-Sanz, Victoria
关键词：RNA virome; Antarctic krill
Euphausia superba ; Biosafety; Global aquaculture; Antarctic ecosystem -
Comparative Genomics of Bryopsis hypnoides: Structural Conservation and Gene Transfer Between Chloroplast and Mitochondrial Genomes
作者：Liu, Ziwen;Fan, Xiao;Wu, Yukun;Zhang, Wei;Zhang, Xiaowen;Xu, Dong;Wang, Yitao;Sun, Ke;Wang, Wei;Ye, Naihao;Liu, Ziwen;Fan, Xiao;Ye, Naihao
关键词：chloroplast genome; mitochondrial genome; gene transfer
