FOOD SCIENCE ›› 2018, Vol. 39 ›› Issue (24): 145-148.doi: 10.7506/spkx1002-6630-201824022

• Bioengineering • Previous Articles     Next Articles

Analysis of Partial DNA Sequence of CO I Gene and Its Application for Species Identification of Thirteen Species of Puffer Fish

CHEN Wenbing1, MIAO Tingyu1, WENG Guozhu2, CHEN Rongbin3, SHAO Biying 1, PENG Juan1, JIANG Shuxun1   

  1. (1. Inspection and Quarantine Technology Center, Fujian Entry-Exit Inspection and Quarantine Bureau, Fuzhou 350001, China;2. Putian Entry-Exit Inspection and Quarantine Bureau, Putian 351100, China;3. Fisheries College, Jimei University, Xiamen 361021, China)
  • Online:2018-12-25 Published:2018-12-17

Abstract: Partial fragments of the cytochrome oxidase subunit I (CO I) genes from13 species in 3 genera of puffer fish and 9 samples from unknown species collected in Fujian province and Hainan province were amplified by polymerase chain reaction (PCR) using universal primers and the PCR products were sequenced. The DNA sequences of 13 known species were submitted to the GenBank with accession numbers. The target gene sequence was 681 bp in length for all species. Sequence alignment was carried out using DNAMAN V6 software, and a phylogenetic tree among species was established. Thirteen known species were divided into 4 groups, with 84% homology between the groups and 90%–100% within the groups. Nine samples of unknown puffer fish species were classed into 2 groups: the Takifugu and Gastrophysus genera; HNW2 was identified as Gastrophysus lunaris, HNW3, HNW4, FJW2, and FJW5 as G. spadiceus, HNW1 as G. gloveri and FJW1, FJW3 and FJW4 as T. oblongus.

Key words: puffer fish, CO I gene, DNA barcode, species identification

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