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ID:29894087
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页数:15页
时间:2018-12-24
《花鱼骨♀×唇鱼骨♂杂交子一代胚胎发育研究》由会员上传分享,免费在线阅读,更多相关内容在应用文档-天天文库。
1、花鱼骨(♀)×唇鱼骨(♂)杂交子一代胚胎发育研究摘要:采用人工催产和干法授精技术,在zoom645s解剖镜下对花鱼骨(hemibarbusmaculatus)(♀)×唇鱼骨(h.labeo)(♂)杂交子一代(f1)胚胎发育过程中各发育时期的发育时序和形态特征进行了观察。结果表明,受精卵为强黏性卵,卵径为1.60~1.80mm。在孵化水温为(20±1)℃条件下,受精后1h胚盘隆起;1h20min进入卵裂期;6h20min进入桑椹期;8h20min进入囊胚期;13h10min进入原肠期;16h20min进入神经胚期;受精后18h进入胚孔封
2、闭期;21h30min进入肌节出现期;27h20min进入眼基出现期;28h40min进入眼囊期;30h40min进入尾芽期;32h30min进入晶体出现期;34h40min进入肌肉效应期;36h40min进入耳石出现期;44h进入心跳期;53h40min进入眼色素形成期;60h40min进入血液循环期;68h30min后开始出膜。杂交f1胚胎发育时序及形态特征均偏向母本花鱼骨。关键词:花鱼骨(hemibarbusmaculatus);唇鱼骨(h.labeo);杂交子一代;胚胎发育studyonembryodevelopmentofc
3、rossbreedf1byhemibarbusmaculates(♀)×hemibarbuslabeo(♂)lianqing-ping1,miguo-qiang1,huting-jian1,wangyu-chen1,yaozi-liang2,qindan3(1.zhejianginstituteoffreshwaterfisheries,huzhou313001,zhejiang,china;2.lishuifisherytechnicalextensionstation,lishui323000,zhejiang,china;3.d
4、epartmentofbioengineering,wuhanbioengineeringinstitute,wuhan430415,china)abstract:fertilizedeggswereobtainedbythecrossingofhemibarbusmaculates(♀)×h.labeo(♂)withartificialreproduction,andthemorphologicalcharactersindifferentembryodevelopmentstageswereobservedusingzoom645
5、smicroscope.resultsshowedthatthefertilizedeggswerestrongstickywithdiameter1.60~1.80mm.underthewatertemperatureof(20±1)℃,thefertilizedeggsdevelopedtotheformationofblastodermafter1hourfertilizing,cleavagestageafter1hourand20minutes,morulastageafter6hoursand20minutes,blast
6、ulastageafter8hoursand20minutes,gastrulastageafter13hoursand10minutes,neurulastageafter16hoursand20minutes,blastoporeclosingstageafter18hours,myocomaformationstageafter21hoursand30minutes,opticrudimentstageafter27hoursand20minutes,eyecapsulestageafter28hoursand40minutes
7、,tail-budstageafter30hoursand40minutes,eyelensformedstageafter32hoursand30minutes,musculareffectstageafter34hoursand40minutes,otolithesstageafter36hoursand40minutes,heartworkingstageafter44hours,eyepigmentingstageafter53hoursand40minutes,bloodcirculationstageafter60hour
8、sand40minutes,andfrybegantobehatchedoutafter68hoursand30minutes.theembryodevelopmentprocessandthemorphological
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