Forensic analysis reveals fraud in fillets from the "Gurijuba" Sciades parkeri (Ariidae - Siluriformes): a vulnerable fish in Brazilian Coastal Amazon.

Mitochondrial DNA. Part A, DNA mapping, sequencing, and analysis Pub Date : 2019-07-01 Epub Date: 2019-06-12 DOI:10.1080/24701394.2019.1622694

Grazielle Gomes, Rafael Correa, Ivana Veneza, Raimundo da Silva, Danillo da Silva, Josy Miranda, Iracilda Sampaio

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引用次数: 8

Abstract

The utilization of molecular tools for the certification of fishery products has been increasing over the last years. In general, economically important species are replaced by less valuable species, characterizing a commercial fraud. We evaluated the authenticity of 107 frozen fillets tagged as Gurijuba (Sciades parkeri) and Uritinga (Sciades proops) from local markets in northern amazon coast by sequencing two mitochondrial genes: Cytochrome oxidase subunit I and cytochrome b (Cyt b). About 16% of fillets putatively related to S. parkeri were replaced by S. proops. The Gurijuba faces high fishing pressure, being currently listed by the International Union for Conservation of Nature as vulnerable. Forensic analysis with DNA markers, proved to be highly efficient in the discrimination of the processed seafood products, providing unequivocal identification of species, revealing commercial fraud in the fillets of the Gurijuba, and revealing the utility of Cytb sequences as barcode in fishes.

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法医分析显示，巴西沿海亚马逊地区的一种脆弱的鱼类“Gurijuba”Sciades parkeri (Ariidae - Siluriformes)的鱼片存在欺诈行为。

在过去的几年里，分子工具对渔业产品认证的利用一直在增加。一般来说，经济上重要的物种被价值较低的物种所取代，这是商业欺诈的特征。通过细胞色素氧化酶亚基I和细胞色素b (Cyt b)两个线粒体基因的测序，对来自亚马逊北部海岸当地市场的107条冷冻鱼片的真伪进行了评估。结果表明，大约16%的推定与S. parkeri有关的鱼片被S. proops取代。古里朱巴面临着巨大的捕捞压力，目前被国际自然保护联盟列为易危物种。DNA标记法证分析被证明在海产品加工中具有很高的效率，提供了明确的物种识别，揭示了Gurijuba鱼片中的商业欺诈行为，并揭示了Cytb序列作为鱼类条形码的实用性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Mitochondrial DNA. Part A, DNA mapping, sequencing, and analysis

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