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学科主题: Reproductive Biology ; Zoology
题名: Characterization of embryogenesis and early larval development in the Pacific triton, Charonia tritonis (Gastropoda: Caenogastropoda)
作者: [Zhang, Lu-Ping ; Xia, Jian-Jun ; Peng, Peng-Fei ; Li, Hai-Peng ; Luo, Peng ; Hu, Chao-Qun] Chinese Acad Sci, Key Lab Marine Bioresources Sustainable Utilizat, South China Sea Inst Oceanol, Guangzhou 510301, Guangdong, Peoples R China
通讯作者: cqhu@scsio.ac.cn
关键词: organogenesis ; embryo ; asymmetric development ; veliger
刊名: INVERTEBRATE REPRODUCTION & DEVELOPMENT
发表日期: 2013
卷: 57, 期:3, 页:237-246
部门归属: LMB
资助者: We would like to thank Mr Chen Hui for skillfully taking care of the snails. We thank Dr Zhao Zhe and Dr Yuan Lihong for various suggestions that improved an earlier draft of the paper as well as the input of two anonymous reviewers. This work was financially supported by the National Key Technologies R&D Program of China (2009BAB44B02), the Fishery Science and Technology Program of Guangdong Province (A200901B203 and A201001B04), and the National Infrastructure Program of Fishery Germplasm Resources (2011DKA3047).
摘要: The Pacific triton, Charonia tritonis, is one of the largest carnivorous gastropods in coral reef ecosystems. This species has been in danger of extinction for many years due to unsustainable fishing. The scarcity of information about its life history greatly limits its artificial propagation and in this study, we present information on embryogenesis and early larval development. Females produced 550-600 egg capsules during each spawn, each of which contained approximately 3000 yolky eggs that measured 428.0 +/- 16.10 mu m in diameter. Formation and retraction of a small polar lobe were identified during egg maturation and the first two divisions, and absorption of the polar lobe into the 3D cell was observed during the eight-cell stage. The early embryo developed into a stereoblastula by spiral cleavages, and gastrulation by epiboly ended by days 5-7. The trochophore, protoconch, and eyespots appeared at 9-12, 15-18, and 20-22 days, respectively. An average of 2000 free-swimming veligers with a shell length of 664.2 +/- 49.81 pm were released from each capsule after 59 +/- 4.0 days incubation at 24 +/- 0.5 degrees C. The vela were reduced by the shedding of cilia after eight weeks, although the left tentacle was still absent after 20 weeks.
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000325193800008
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内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/10988
Appears in Collections:中科院海洋生物资源可持续利用重点实验室_期刊论文

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[Zhang, Lu-Ping; Xia, Jian-Jun; Peng, Peng-Fei; Li, Hai-Peng; Luo, Peng; Hu, Chao-Qun] Chinese Acad Sci, Key Lab Marine Bioresources Sustainable Utilizat, South China Sea Inst Oceanol, Guangzhou 510301, Guangdong, Peoples R China.Characterization of embryogenesis and early larval development in the Pacific triton, Charonia tritonis (Gastropoda: Caenogastropoda),INVERTEBRATE REPRODUCTION & DEVELOPMENT,2013,57(3):237-246
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