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南美白对虾肠道微生物群落的分子分析
Authors
李可
田蕴
袁建军
郑天凌
Publication date
4 August 2007
Publisher
Abstract
采用分子生物学手段16S rDNA克隆文库方法对实验室养殖条件下的南美白对虾肠道细菌进行了多样性研究。用限制性片段长度多态性(RFLP)方法从文库中筛选出可能不同细菌来源的克隆子12个,测定其16S rDNA片段核甘酸序列,将所获得的序列与GenBank数据库进行BLAST比对,结果表明:南美白对虾肠道的16S rDNA克隆文库中126个克隆子分属2个不同的细菌类群:变形细菌(Proteobacteria)和厚壁细菌(Firmicutes),其中厚壁细菌为优势菌群占到75.4%,且与最相似序列同源性均低于94%;变形细菌占到24.6%,与最相似序列同源性均高于98%,分别为希瓦氏菌属(Shewanella),泛菌属(Pantoea),Aranicola属,假单胞菌属(Pseudomonas)和弧菌属(Vibrio)
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Last time updated on 16/06/2016