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首页> 外文期刊>Developmental dynamics: an official publication of the American Association of Anatomists >A staging table for the embryonic development of the brownbanded bamboo shark ( Chiloscyllium punctatum Chiloscyllium punctatum )
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A staging table for the embryonic development of the brownbanded bamboo shark ( Chiloscyllium punctatum Chiloscyllium punctatum )

机译：褐竹鲨的胚胎发育的分期表（辣椒粉尖角饼斑疹斑吡喃荠）

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Background: Studying cartilaginous fishes (chondrichthyans) has helped us understand vertebrate evolution and diversity. However, resources such as genome sequences, embryos, and detailed staging tables are limited for species within this clade. To overcome these limitations, we have focused on a species, the brownbanded bamboo shark ( Chiloscyllium punctatum ), which is a relatively common aquarium species that lays eggs continuously throughout the year. In addition, because of its relatively small genome size, this species is promising for molecular studies. Results: To enhance biological studies of cartilaginous fishes, we establish a normal staging table for the embryonic development of the brownbanded bamboo shark. Bamboo shark embryos take around 118 days to reach the hatching period at 25°C, which is approximately 1.5 times as fast as the small‐spotted catshark ( Scyliorhinus canicula ) takes. Our staging table divides the embryonic period into 38 stages. Furthermore, we found culture conditions that allow early embryos to grow in partially opened egg cases. Conclusions: In addition to the embryonic staging table, we show that bamboo shark embryos exhibit relatively fast embryonic growth and are amenable to culture, key characteristics that enhance their experimental utility. Therefore, the present study is a foundation for cartilaginous fish research. Developmental Dynamics 247:712–723, 2018 . ? 2017 Wiley Periodicals, Inc.
机译：背景：研究软骨鱼（Chondrichthyans）帮助我们了解脊椎动物的进化和多样性。然而，诸如基因组序列，胚胎和详细分期表等资源受到该疏水内部的物种的限制。为了克服这些限制，我们专注于一种物种，棕色竹鲨（辣椒粉尖瓜），这是一种相对普遍的水族馆种类，全年连续地产卵。此外，由于其基因组大小相对较小，该物种是对分子研究的承诺。结果：提高软骨鱼的生物学研究，建立一个正常的分期表，为棕色竹鲨的胚胎发育。竹鲨胚胎约118天，在25°C下达到孵化周期，这比小斑点的Catshark（Scyliorhinus canicula）所需的速度大约1.5倍。我们的分期表将胚胎期分为38个阶段。此外，我们发现允许早期胚胎在部分打开的蛋壳中生长的培养条件。结论：除了胚胎分段表外，竹鲨胚胎表现出相对较快的胚胎生长，培养，可提高其实验效用的关键特征。因此，本研究是软骨鱼研究的基础。发展动力学247：712-723,2018。还2017年Wiley期刊，Inc。

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