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Título: | Use of mtDNA Direct Polymerase Chain Reaction (PCR) Sequencing and PCR-Restriction Fragment Length Polymorphism Methodologies in Species Identification of Canned Tuna |
Autor: | Quinteiro, Javier; González Sotelo, Carmen CSIC ORCID ; Rehbein, Hartmut; Pryde, Susan E.; Pérez Martín, Ricardo Isaac CSIC ORCID; Rey Méndez, Manuel CSIC; Mackie, I. M. | Palabras clave: | Canned tuna Species identification Cytochrome b Genetic distance RFLP-PCR |
Fecha de publicación: | 1998 | Editor: | American Chemical Society | Citación: | Journal of Agricultural and Food Chemistry 46(4): 1662-1669 (1998) | Resumen: | Identification of six canned tuna species using DNA-based methodology was studied. DNA was degraded during the canning process of fish muscle: DNA fragment sizes that ranged from <100 up to 200 bp were obtained from canned tuna muscle, whereas DNA sizes for frozen tuna muscle ranged from <100 up to 20 000 bp. Amplification of DNA from canned tuna muscle was carried out using primers flanking a region of cytochrome b gene of 126 bp. Sequences from PCR-amplified DNA of six tuna species were studied for polymorphic sites; seven diagnostic positions were identified in this fragment for the species studied. The suitability of a genetic distance measurement with phylogenetic tree construction method for the identification of canned tuna species using two cytochrome b sequences (299 and 126 bp) was studied. PCR-amplified DNA from canned tuna was also analyzed by using three restriction endonucleases, BsiYI, MboI, and MnlI. The restriction fragments allowed for the identification of the six tuna species studied. | Descripción: | 8 páginas, 4 tablas, 4 figuras | Versión del editor: | http://dx.doi.org/10.1021/jf970552+ | URI: | http://hdl.handle.net/10261/58460 | DOI: | 10.1021/jf970552+ | ISSN: | 0021-8561 | E-ISSN: | 1520-5118 |
Aparece en las colecciones: | (IIM) Artículos |
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