Razvoj metoda za analizu DNA mikrosatelita i njihova primjena za identifikaciju goveda

doctoral thesis

• Title (english): The development of methods for DNA microsatellites analysis and their applicationfor bovine identification
• Author: Petar Projić
• Mentor: Dragan Primorac (mentor); MBZ: 212641
• Committee member: Marijana Peričić Salihović (član povjerenstva)
• Committee member: Ana Galov (član povjerenstva)
• Committee member: Inga Marijanović (član povjerenstva)
• Granter: University of Zagreb; Faculty of Science; (Department of Biology); Zagreb
• Defense date and country: 2013, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Biology
• Universal decimal classification (UDC): 577 - Biochemistry. Molecular biology. Biophysics

Abstract

Za analizu humane DNA koriste se tetranukleotidni STR sustavi, dok se za analizu uzoraka animalnog podrijetla najčešće koriste dinukleotidni mikrosateliti. Međunarodno društvo za animalnu genetiku (ISAG), za ispitivanje podrijetla goveda, preporučilo je 30 najčešćih dinukleotida prisutnih u različitim kombinacijama u postojećim komercijalnim kitovima. Korištenjem jednog od alata (Tandem-Repeats Finder) „in silico mining“ pretraživanjem mikrosatelitnih sljedova iz baze podataka DNA sljedova (UniGene NCBI) za goveda, odabrani su novi, visoko polimorfni mikrosateliti (tetranukleotidi), do sada neprimijenjeni u postupcima utvrđivanja identiteta kod goveda. Testirani su na uzorku od 110 goveda i uspoređeni s mikrosatelitima uključenim u komercijalni set reagensa tvrtke Applied Biosystems. Ispitan je i velik broj postojećih, preporučenih mikrosatelita. Odabrana je statistički najznačajnija kombinacija - novorazvijeni multiplex STR sustav (12 STR lokusa), u sklopu kojeg je razvijena i integrirana alelna ljestvica. Dobiveni rezultati omogućiti će primjenu biljega čija će uporaba povećati vrijednost i preciznost budućih DNA analiza kod goveda, te ih približiti vrijednostima analiza DNA humanog podrijetla.

Abstract (english)

Tetra nucleotides STR systems are used to analyse the DNA of human origin. In the analyses of samples of animal origin dinucleotide microsatellites are most commonly used. For the study of bovine origin International Society for Animal Genetics (ISAG) has recommended 30 of the most common dinucleotide microsatellites that are present in different combinations in existing commercial kits. By using one of available tools (Tandem-Repeats Finder) for "in silico mining" search of microsatellite sequences from a database of DNA sequences (UniGene NCBI) for cattle, a new highly polymorphic microsatellites were chosen - up till now not applied in the procedures of establishing the bovine identity. They were tested on a sample of 110 cattle and compared with microsatellites included in the existing commercial kit of Applied Biosystems. The large number of the existing, recommended microsatellites was also examined. Then the statistically most significant combination was chosen– newly developed multiplex STR system -12 STR loci and the allelic ladder for selected combination has been developed and integrated. The acquired results will enable the aplication of markers the use of which will increase the value and accuracy of future DNA analysis in cattle. It will also bring them closer to the DNA analysis of human origin.

• Keywords: in silico mining; govedo (Bos Taurus); mikrosateliti; novi biljezi; populacijska studija
• Keywords (english): in silico mining; cattle (Bos Taurus); microsatellite; new markers; population studies
• Language: croatian
• URN:NBN: urn:nbn:hr:217:582149
• Study programme: Title: Biology; Study programme type: university; Study level: postgraduate; Academic / professional title: doktor/doktorica znanosti, područje prirodnih znanosti, polje biologija (doktor/doktorica znanosti, područje prirodnih znanosti, polje biologija)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2017-05-19 10:09:10