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首页> 外文期刊>Biochemical Genetics >Morphometrics and Mitochondrial DNA Genes Analysis Suggest a New Species of Penaeus (Crustacea: Penaeidae) from the Persian Gulf
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Morphometrics and Mitochondrial DNA Genes Analysis Suggest a New Species of Penaeus (Crustacea: Penaeidae) from the Persian Gulf

机译：形态识别性和线粒体DNA基因分析表明，来自波斯湾的新物种（甲壳成分：Penaeidae）来自波斯湾

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摘要

There are two morphotypes of Penaeus semisulcatus described hitherto in the Persian Gulf, namely the banded and non-banded antennae morphotypes. In this study, we used morphometric measurements and two mitochondrial genes (16S rRNA and cytochrome oxidase subunit ICOI) to assess relationships between the two morphotypes of P. semisulcatus. Out of 25 morphological characters examined, 10 characters were found significantly different between the two morphotypes when tested against separate sexes or both sexes combined. Results from the 16S rRNA and COI sequence analysis of two morphotypes of P. semisulcatus morphotype showed up to 6% and 17% sequence divergence, respectively. The 16S rDNA and COI sequences of the non-banding morphotype were not only very different to those of the banding morphotype but was also very different to all other Penaeus species (i.e., P. monodon, P. merguiensis, and P. indicus) included in the study. Both parsimony and Neighbor-Joining trees based on 16S rDNA and COI sequences provide similar tree topology that clearly separated the two morphotypes into two distinct groups. Based on these findings, we propose the two morphotypes of P. semisulcatus to be relegated as two sympatric species.
机译：迄今为止在波斯湾中描述的Penaeus semiSulcatus有两种Mor型，即带状和非带状天线Morphotypes。在这项研究中，我们使用了形态测量测量和两个线粒体基因（16S rRNA和细胞色素氧化酶亚基ICOI）来评估P. Semisulcatus的两种Mor晶片之间的关系。在25个形态角色中，在对单独的性别或两性组合的情况下测试时，在两种情况下，在两种情况下发现了10个字符的显着不同。 P.Semisulcatus Mor晶型两种Mor晶片的16S rRNA和COI序列分析的结果分别显示出高达6％和17％的序列分歧。非带状morphot型的16s rdna和coi序列与条带mor othe型的16s rdna和coi序列不仅与所有其他penaeus种类（即，p. monodon，p. merguiensis和p. indicus）的截然不同在研究中。基于16S rDNA和COI序列的分布和邻居连接树提供类似的树拓扑，可以清楚地将两种Morotheps分成两个不同的群体。基于这些发现，我们提出了Semisulcatus的两种Mor晶片，以作为两个合并物种被降级。

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