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首页> 外文期刊>International Journal of Molecular Sciences >Homogeneous Nature of Malaysian Marine Fish Epinephelus fuscoguttatus (Perciformes; Serranidae): Evidence Based on Molecular Markers, Morphology and Fourier Transform Infrared Analysis
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Homogeneous Nature of Malaysian Marine Fish Epinephelus fuscoguttatus (Perciformes; Serranidae): Evidence Based on Molecular Markers, Morphology and Fourier Transform Infrared Analysis

机译:马来西亚海鱼Epinephelus fuscoguttatus(Perciformes; Serranidae)的同质性:基于分子标记,形态学和傅里叶变换红外分析的证据

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Taxonomic confusion exists within the genus Epinephelus due to the lack of morphological specializations and the overwhelming number of species reported in several studies. The homogenous nature of the morphology has created confusion in the Malaysian Marine fish species Epinephelus fuscoguttatus and Epinephelus hexagonatus. In this study, the partial DNA sequence of the 16S gene and mitochondrial nucleotide sequences of two gene regions, Cytochrome Oxidase Subunit I and III were used to investigate the phylogenetic relationship between them. In the phylogenetic trees, E. fuscoguttatus was monophyletic with E. hexagonatus species and morphology examination shows that no significant differences were found in the morphometric features between these two taxa. This suggests that E. fuscoguttatus is not distinguishable from E. hexagonatus species, and that E. fuscoguttatus have been identified to be E. hexagonatus species is likely attributed to differences in environment and ability to camouflage themselves under certain conditions. Interestingly, this finding was also supported by Principal Component Analysis on Attenuated Total Reflectance–Fourier-transform Infrared (ATR-FTIR) data analysis. Molecular, morphological and meristic characteristics were combined with ATR-FTIR analysis used in this study offer new perspectives in fish species identification. To our knowledge, this is the first report of an extensive genetic population study of E. fuscoguttatus in Malaysia and this understanding will play an important role in informing genetic stock-specific strategies for the management and conservation of this highly valued fish.
机译:由于缺乏形态学专长和几项研究中报告的物种数量过多,因此,Epinephelus属中存在分类混乱。形态的同质性使马来西亚海鱼物种Epinephelus fuscoguttatus和Epinephelushexagonatus产生混淆。在这项研究中,使用16S基因的部分DNA序列和细胞色素氧化酶亚基I和III的两个基因区域的线粒体核苷酸序列来研究它们之间的系统发育关系。在系统发育树中,烟曲霉E. fuscoguttatus与六面体E.hexatatus种类是单系的,形态学检查表明这两个类群在形态特征上没有发现显着差异。这表明E. fuscoguttatus不能与E. hexagonatus物种区分开,并且E. fuscoguttatus被鉴定为E. hexastaratus物种可能归因于环境的差异以及在某些条件下伪装自身的能力。有趣的是,这一发现也得到了衰减全反射傅里叶变换红外(ATR-FTIR)数据分析的主成分分析的支持。分子,形态和综合特性与本研究中使用的ATR-FTIR分析相结合,为鱼类物种鉴定提供了新的视角。据我们所知,这是对马来西亚大肠埃希菌的广泛遗传种群研究的第一份报告,这种理解将在为管理和保护这种高价值鱼类的遗传种群特定策略提供信息方面发挥重要作用。

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