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J Agric Food Chem. 2014 Apr 2;62(13):2803-8. doi: 10.1021/jf405680g. Epub 2014 Mar 21.

A rapid method for differentiating four species of the Engraulidae (anchovy) family.

Author information

1
Laboratorio de Genética, Facultad de Ciencias del Mar y Ambientales, CACYTMAR, Universidad de Cádiz , Polígono Río San Pedro, s/n, 11510, Puerto Real, Cádiz, Spain.

Abstract

The four species of the Engraulidae family: European anchovy (Engraulis encrasicolus), Californian anchovy (Engraulis mordax), Peruvian anchoveta (Engraulis ringens), and Japanese anchovy (Engraulis japonicus) studied in this work are very similar morphologically, and it is very difficult to distinguish between them, especially when frozen or processed. We have used the 5S rDNA as a molecular marker to discriminate these four species and used specific primers designed for each species in the nontranscribed spacers (NTS) of these genes. Multiplex PCR was performed with three pairs of primers, and three different sizes were obtained: 597 bp E. encrasicolus, 598 bp E. japonicus, 380 bp E. mordax, and 250 bp E. ringens. For the species E. encrasicolus and E. japonicus, PCR-RFLP was used as an additional technique to distinguish between them because their NTS sequences showed considerable similarity.

PMID:
24628361
DOI:
10.1021/jf405680g
[Indexed for MEDLINE]

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