唇鱼骨肌间小骨的骨化过程
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浙江省自然科学基金(Y3110477)


The ossificational process of the intermuscular bones in Hemibarbus labeo
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    摘要:

    利用整体骨骼染色的方法,对唇鱼骨(Hemibarbus labeo)早期发育阶段肌间小骨的形态发生进行观察,结果表明:在受精后35 d(dpf)之前,除了肌间小骨,唇所有其它骨骼均已骨化完成。肌间小骨在35 dpf(相应的体长为23.67cm)开始在尾部区域骨化,髓弓小骨首先出现在尾部的第37~41肌节之间,脉弓小骨首先出现在尾部的39~40肌节之间,然后依次往前;到62 dpf(相应的体长为30.03 cm)肌间小骨骨化全部完成。骨化过程中,唇肌间小骨是从简单的I型,到卜型,再到Y型,再分化为各种复杂形态。唇肌间小骨出现的时机和形态形成规律与其它鲤科鱼类相似,提示鲤科各亚科鱼类肌间小骨的骨化过程可能受同样的遗传机制控制。

    Abstract:

    To further understand the ossificational process of intermuscular bones in fishes from Cyprinidae, an important farming fish Hemibarbus labeo was investiaged in this study. Intermuscular bones of H. labeo at different developmental stages were stained with alizarin red. Before 35 dpf (days post fertilization), all bones in H. labeo were ossified except for intermusclar bones. Since 35 dpf, intermuscular bones in tail area begun ossification in 23.67 cm standard length H. labeo. The ossified epineurals were observed in the myoseptums from 37thto 41th myotome, and the ossified epipleurals was only found between 39th to 40th myotome. As H. labeo was developping, ossified intermuscular bones were gradually observed in the myoseptums close to the head. Till to 62 dpf, all intermuscular bones were found ossified in H. labeo with 30.03 cm standard length. In addition, the primary morphology of intermuscular bone was type I, and ossified intermuscular bones with more complicated morphology were gradually forming from the type I during ossifing process. On the whole, the timing of intermucular bone initial ossification and the forming process of complex morphology in H. labeo were very similar to that in other species in Cyprinidae, indicating conserved genetic mechanism control of ossification of intermuscular bones might exist in Cyprinidae.

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吕耀平,陈 洁,鲍宝龙,黄佩佩.唇鱼骨肌间小骨的骨化过程[J].上海海洋大学学报,2012,21(4):549-553.
LV Yao-ping, CHEN Jie, BAO Bao-long, HUANG Pei-pei. The ossificational process of the intermuscular bones in Hemibarbus labeo[J]. Journal of Shanghai Ocean University,2012,21(4):549-553.

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  • 在线发布日期: 2012-07-18
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