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Current approaches to whole genome sequencing and de novo genome assembly
Halenková, Zuzana ; Reifová, Radka (advisor) ; Röslein, Jan (referee)
The cost of sequencing has fallen almost ten thousand times over the past ten years due to the development of second and third generation sequencers. Sequencing and assembling the whole genome sequence of an organism is thus becoming a more affordable tool which can be utilized in many fields of science. On the way to the complete DNA sequence of an organism, multiple important decisions have to be made. These are crucial for the successful assembly of high- quality whole genome sequence and regard sample preparation, choice of sequencing technique and choice of an appropriate approach to whole genome assembly. This bachelor thesis describes various methods which can be utilized in individual steps of the process and aspects to consider while making the decisions. Keywords: next generation sequencing, third generation sequencing, whole genome sequencing, de novo assembly, genome assembly algorithms
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Current approaches to whole genome sequencing and de novo genome assembly
Halenková, Zuzana ; Reifová, Radka (advisor) ; Röslein, Jan (referee)
The cost of sequencing has fallen almost ten thousand times over the past ten years due to the development of second and third generation sequencers. Sequencing and assembling the whole genome sequence of an organism is thus becoming a more affordable tool which can be utilized in many fields of science. On the way to the complete DNA sequence of an organism, multiple important decisions have to be made. These are crucial for the successful assembly of high- quality whole genome sequence and regard sample preparation, choice of sequencing technique and choice of an appropriate approach to whole genome assembly. This bachelor thesis describes various methods which can be utilized in individual steps of the process and aspects to consider while making the decisions. Keywords: next generation sequencing, third generation sequencing, whole genome sequencing, de novo assembly, genome assembly algorithms
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Mutation and substitution rates in sexual and asexual forms: a clue to the persistence of sex in a model group of Cobitis?
Röslein, Jan ; Janko, Karel (advisor) ; Rothová, Olga (referee)
Univerzita Karlova v Praze Přírodovědecká fakulta Studijní program: Molekulární biologie, genetika a virologie Bc. Jan Röslein Mutační a substituční tempo u sexuálních a klonáních forem: možný klíč k vysvětlení persistence sexu u modelové skupiny sekavců Mutation AND substitution rates in sexual and asexual forms: a clue to the persistence of sex in a model group of Cobitis? Typ závěrečné práce Diplomová Vedoucí závěrečné práce: Mgr. Karel Janko, Ph.D. Praha, 2015 Velký dík náleží mému školiteli Mgr. Karlu Jankovi, Ph.D. za velmi nápomocné, direktivní vedení práce. Též bych rád poděkoval panu Mgr. Janu Pačesovi, Ph.D. za více než vzdělávací rozměr v oblasti bioinformatické analýzy a Mgr. Ladislavu Pekárikovi, Ph.D., Mgr. Janu Kočímu za pomoc při analýze vybraných kapitol. Také bych rád poděkoval rodině za podporu. Všem participantům na této diplomové práci se hluboce omlouvám za způsobenou psychickou újmu. Prohlášení: Prohlašuji, že jsem závěrečnou práci zpracoval/a samostatně a že jsem uvedl/a všechny použité informační zdroje a literaturu. Tato práce ani její podstatná část nebyla předložena k získání jiného nebo stejného akademického titulu. V Praze dne 12. 8. 2015 Podpis: Abstrakt Klíčová slova: Abstract Key words: Obsah 1...
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Mutation and substitution rates in sexual and asexual forms: a clue to the persistence of sex in a model group of Cobitis?
Röslein, Jan ; Janko, Karel (advisor) ; Rothová, Olga (referee) ; Reifová, Radka (referee)
TITLE: Mutation and substitution rates in sexual and asexual forms: a clue to the persistence of sex in a model group of Cobitis? AUTOR: Jan Röslein DEPARTMENT: Ústav živočišné fyziologie a genetiky AVČR, v.v.i. SUPERVISOR: Mgr. Karel Janko, Ph.D. ABSTRACT: Subject of this thesis is to test several hypotheses about the evolution of asexual reproduction in model group of fish family Cobitis and its mutual competition among sexual and asexual forms, which touches one of the oldest unresolved issues of biology. Specifically, the work deals with the accumulation of non-synonymous mutations, which accelerated accumulation in the genome of clonal lineages theoretically leads to increased extinction compared with sexually reproducing populations (so-called. The theory of Muller's ratchet and Kondrashov's hatchet). This thesis is based on a normalized cDNA sequencing data from oocytes and liver tissue, which has served as a base matrix (generated based on non-normalized cDNA data) for transcriptome sequencing (RNAseq). Consequently, the RNAseq data have served as validation for acquired polymorphisms, detection of differential expression of allele- specific expression (ASE) hybrid biotypes. This diploma thesis balances among the edges of vast spectrum of hypotheses regarding the evolution of the genus hybrid...
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