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首页> 外文期刊>International Journal of Marine Science >Sequence Analysis and Molecular Phylogeny of 16S rRNA Gene Fragments in Four Species of the Penaeid Shrimps from the Sudanese Red Sea
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Sequence Analysis and Molecular Phylogeny of 16S rRNA Gene Fragments in Four Species of the Penaeid Shrimps from the Sudanese Red Sea

机译：苏丹红海四种对虾虾16S rRNA基因片段的序列分析和分子系统发育

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摘要

Penaeid shrimps are of biological and economic importance and are highly in demand for human consumption. Four species of the penaeid decapod crustaceans, Finneropenaeus indicus , Penaeus monodon , P. semisulcatus and Metapenaeus monoceros were studied. Haplotype and nucleotide diversity were combined to assess the phylogenetic relationships of the penaeid shrimp species and populations of the Finneropenaeus indicus . Shrimp specimens were collected at different locations of Baaboud and Alkhairat aquafarms and from the wild. Phylogenetic relationships among the penaeid shrimp species and genetic diversity of F. indicus populations were assessed using partial mtDNA 16S rRNA gene (480 bp). Genetic distances among the species were done. The Genetic differentiation between F. indicus population (Baaboud –Alkhairat; Baaboud-Wild; Alkhairat- Wild) was found 0.10957, 0.12459 and 0.14817 respectively. No clear indication of differentiation between 16S rRNA tree branches of the populations of Alkhairat and Baaboud from the wild population, which may be attributed to the common collection sites of brood stocks and/or post larvae (PL’s) besides the absence of hydrological and physical barriers. M. monoceros formed a distant sister taxon to all other Penaeus species.
机译：对虾具有生物学和经济意义，对人类食用的需求很高。研究了四种对虾十足纲甲壳动物，印度对虾，斑节对虾，半球形对虾和斜尾对虾。结合单倍型和核苷酸多样性来评估对虾物种和印度鳍种群的系统发生关系。在Baaboud和Alkhairat水产养殖场的不同地点以及从野外收集虾标本。利用部分mtDNA 16S rRNA基因（480 bp）评估了对虾对虾与印度对虾种群遗传多样性之间的亲缘关系。物种之间的遗传距离已经完成。发现印度F种群（Baaboud – Alkhairat; Baaboud-Wild; Alkhairat-Wild）之间的遗传分化分别为0.10957、0.12459和0.14817。没有清晰的迹象表明Alkhairat种群和Baaboud种群的16S rRNA树枝与野生种群之间存在差异，这可能是由于除了没有水文和物理障碍外，亲鱼种群和/或幼虫后（PL's）的常见采集点。 。 M. monoceros构成了所有其他Penaeus物种的遥远姊妹分类群。

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