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Article

Open Access

Species Identification of a Commonly Believed Sinarapan Fish Mystichtys luzonensis (Smith, 1902) in Lakes Buhi and Bato of Bicol Region

Author(s)

Jacob Anderson Cajuigan Sanchez^{1, 5}, Venus Banguilan Buraga¹, Carmelita Pingol Mapanao^{1, 4}, Mary Beth Bacano Maningas^{1, 2} and Mudjekeewis Dalisay Santos³

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DOI:10.17265/2161-6264/2015.10.006

Affiliation(s)

1. Graduate School of University of Santo Tomas (UST), España, Manila 1008, Philippines
2. Molecular Biology and Biotechnology Laboratory, Research Center for Natural and Applied Sciences (RCNAS), University of Santo Tomas, Manila 1008, Philippines
3. Genetic Fingerprinting Laboratory, Bureau of Fisheries and Aquatic Resources-National Fisheries Research and Development Institute (BFAR-NFRDI), Quezon City 1011, Philippines
4. College of Arts and Sciences, Polytechnic University of the Philippines, Manila 1016, Philippines
5. College of Arts and Sciences, Pampanga State Agricultural University, Pampanga 2011, Philippines

ABSTRACT

The paper aimed to determine the true identity of a presumed or commonly believed Sinarapan fish and compare their phylogenetic relationships by using DNA barcoding. The fish samples were collected by researchers from a fisheries research and development institution in April 2015 from four different lakes of Bicol Region, i.e., Lakes Buhi, Danao, Manapao and Bato. DNA was extracted using cetyl trimethyl ammonium bromide (CTAB) extraction buffer. The polymerase chain reaction (PCR) profile for the reaction was 94 °C for 10 min, followed by 35 cycles of 1 min at 94 °C, 1 min at 48 °C and 1.5 min at 72 °C, and a final extension of 10 min at 72 °C. The CO1 region with approximately 650 bp was amplified because of its capability to differentiate taxa. Sequencing was done by Macrogen while phylogenetic analysis was produced using a Molecular Evolutionary Genetics Analysis (MEGA) software version 6.0. The findings showed that CO1 can be used as a DNA marker in molecular identification of the fish samples. Samples from two of the four lakes were successfully sequenced. From basic local alignment search tool (BLAST) results, the maximum parsimony (MP) and neighbor-joining (NJ) trees revealed that samples from Lakes Buhi and Bato are not species of Sinarapan but rather species of Leiopotherapon plumbeus and Rhinogobius giurinus, respectively. Furthermore, DNA barcoding is very useful in proving the true identity of unknown samples.

KEYWORDS

Goby fish, Sinarapan, DNA barcoding, CO1 gene, Bicol region.

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References

Species Identification of a Commonly Believed Sinarapan Fish Mystichtys luzonensis (Smith, 1902) in Lakes Buhi and Bato of Bicol Region

Jacob Anderson Cajuigan Sanchez1, 5, Venus Banguilan Buraga1, Carmelita Pingol Mapanao1, 4, Mary Beth Bacano Maningas1, 2 and Mudjekeewis Dalisay Santos3

Jacob Anderson Cajuigan Sanchez^{1, 5}, Venus Banguilan Buraga¹, Carmelita Pingol Mapanao^{1, 4}, Mary Beth Bacano Maningas^{1, 2} and Mudjekeewis Dalisay Santos³