000 03121nam a22002057a 4500
005 20161122101858.0
008 161122b2016 xxu||||| |||| 00| 0 eng d
041 _aeng
082 _a2617-T
100 _aSyeda Rida Mehak Sherazi (2010-VA-477)
_927346
110 _cDr. Muhammad Imran
_927347
245 _aDevelopment Of Novel Mtdna Metabarcodes For The Species Differentiation Of Class Aves
260 _c2016.
300 _a87p.;
502 _aThe Folmer COI mtDNA universal primers that are considered standard for DNA barcoding of life contain so many mismatches against the target sequences of vertebrate origin that they often end in failure to amplify many of vertebrate DNA extractions. This discrepancy favors for the selection and designing of new metabarcode primers that can be used to identify all individuals of vertebrates or at least all individuals represented in a class of Vertebrata such as Class Aves. The current study embarks on such an endeavor. In this study development of new mtDNA metabarcode (16SrRNA) that can be used as universal primers to amplify almost all species of Class Aves for different forensic and molecular biodiversity analyses. Blood/feather/tissue samples were collected from Class Aves (one specimen from every order reported to be present in Pakistan). DNA was extracted from the collected specimens through standard organic method, qualified and quantified and then PCR-amplified using novel universal primers selected from aligned mtDNA sequences originating from all Aves mitochondrial DNA genomes submitted to different online sequence databases such as NCBI nucleotide database. The sensitivity of PCR also be assessed using a range of DNA concentrations. The amplified products were sequenced on ABI Genetic Analyzer following Sanger’s dideoxy method of sequencing. The correctness of obtained mtDNA sequences were examined visually in Chromas Lite 2.1 software and then alignment of these sequences were performed against highly similar DNA sequences in NCBI nucleotide databases using BLAST in order to identify origin of unknown mtDNA sequences. With the help of sequencing and phylogenetic studies specificity of the universal primer set confirmed and presented as a novel metabarcode (16SrRNA) for species level identification of large number of Avian species In summary, we present universal method for species classification of Aves using a targeted parallel sequencing approach. Both sequencing and phylogenetic studies experiments confirm Summary 82 specificity of universal primer set. Although promising results were obtained with current settings, rapid improvement of bench top instruments will further develop method with less hands-on, fewer sequencing errors and lower detection limit. So, in future, this barcode can be used for species identification in various fields of study such as meat adulteration, illegal trade, food mislabeling and molecular estimation of biodiversity.
650 _aMolecular Biology and Biotechnology
_927348
700 _aDr. M. Yasir Zahoor
_920904
700 _aMr. Shahid Abbas
_95552
942 _cTH
999 _c9774
_d9773