为开发针对大规模样本、低通量位点的单核苷酸多态性(Single nucleotide polymorphism, SNP)分型技术,研究依据虹鳟高通量SNP芯片检测鲑科4个属不同物种群体样本的结果,筛选获得了96个高质量共享多态性位点,应用Fluidigm 96.96微流控动...为开发针对大规模样本、低通量位点的单核苷酸多态性(Single nucleotide polymorphism, SNP)分型技术,研究依据虹鳟高通量SNP芯片检测鲑科4个属不同物种群体样本的结果,筛选获得了96个高质量共享多态性位点,应用Fluidigm 96.96微流控动态芯片平台,构建了用于鲑科物种增殖放流个体识别的SNP分型系统。以细鳞鲑为例评估芯片分型结果可靠性,分型成功率为98.63%,与Affymetrix高通量芯片分型一致性达到97.92%。基于该芯片分型结果,使用CERVUS 3.0.7软件对96尾细鳞鲑子代样本及其候选亲本和干扰亲本进行亲权鉴定,结果能够准确重现复杂家系的真实系谱,在用于单亲本亲权鉴定时,第一亲本非排除率(Nonexclusion probability for first parent, NE-1P)为4.362×10^(–4),用于双亲本亲权鉴定时,双亲非排除率(Nonexclusion probability for parent pair, NE-PP)为6.538×10^(–12),完全满足增殖放流回捕个体分子鉴定的需求。基于该芯片分型数据进行STRUCTURE遗传结构分析,可以明确区分不同来源野生群体的遗传组分,并对待测个体的遗传组分进行初步判别,能够满足种群遗传结构初步评估的需求。研究构建的包含96个位点的SNP分型系统,适合应用于鲑科鱼类增殖放流个体识别、种群遗传结构动态评估,以及在此基础上开展的增殖放流效果评估。展开更多
There is a debate on if aquaculture tank colure could effect survival and growth of fish juveniles,it seems that different fish shows difference in the same tank colure environment or different stage shows difference ...There is a debate on if aquaculture tank colure could effect survival and growth of fish juveniles,it seems that different fish shows difference in the same tank colure environment or different stage shows difference in the same tank colure. The overall aim of this study is to establish whether tank colure influence survival and growth of Oncorhynchus masou juvenile under artificial controlled conditions. After an 50- days experiment,no significant difference of dead rate was observed in both blue and black tanks,and black tank led to significantly lower final body weight, fork length,as well as SGR. The study shows that rearing in blue tank should be considered little stressful for O. masou masou juveniles and blue material tank should be used in aquaculture practice.展开更多
文摘为开发针对大规模样本、低通量位点的单核苷酸多态性(Single nucleotide polymorphism, SNP)分型技术,研究依据虹鳟高通量SNP芯片检测鲑科4个属不同物种群体样本的结果,筛选获得了96个高质量共享多态性位点,应用Fluidigm 96.96微流控动态芯片平台,构建了用于鲑科物种增殖放流个体识别的SNP分型系统。以细鳞鲑为例评估芯片分型结果可靠性,分型成功率为98.63%,与Affymetrix高通量芯片分型一致性达到97.92%。基于该芯片分型结果,使用CERVUS 3.0.7软件对96尾细鳞鲑子代样本及其候选亲本和干扰亲本进行亲权鉴定,结果能够准确重现复杂家系的真实系谱,在用于单亲本亲权鉴定时,第一亲本非排除率(Nonexclusion probability for first parent, NE-1P)为4.362×10^(–4),用于双亲本亲权鉴定时,双亲非排除率(Nonexclusion probability for parent pair, NE-PP)为6.538×10^(–12),完全满足增殖放流回捕个体分子鉴定的需求。基于该芯片分型数据进行STRUCTURE遗传结构分析,可以明确区分不同来源野生群体的遗传组分,并对待测个体的遗传组分进行初步判别,能够满足种群遗传结构初步评估的需求。研究构建的包含96个位点的SNP分型系统,适合应用于鲑科鱼类增殖放流个体识别、种群遗传结构动态评估,以及在此基础上开展的增殖放流效果评估。
基金financially supported by Central-level Non-profit Scientific Research Institutes Special Funds(Project no.HSY201305)
文摘There is a debate on if aquaculture tank colure could effect survival and growth of fish juveniles,it seems that different fish shows difference in the same tank colure environment or different stage shows difference in the same tank colure. The overall aim of this study is to establish whether tank colure influence survival and growth of Oncorhynchus masou juvenile under artificial controlled conditions. After an 50- days experiment,no significant difference of dead rate was observed in both blue and black tanks,and black tank led to significantly lower final body weight, fork length,as well as SGR. The study shows that rearing in blue tank should be considered little stressful for O. masou masou juveniles and blue material tank should be used in aquaculture practice.