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Evolution of Essential and Ancient Genes: Understanding and Modeling Fitness in Transfer RNAs
Evolution of Essential and Ancient Genes: Understanding and Modeling Fitness in Transfer RNAs
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202105525
- ISBN
- 9798263342258
- DDC
- 572.4
- 저자명
- Wang, Ling.
- 서명/저자
- Evolution of Essential and Ancient Genes: Understanding and Modeling Fitness in Transfer RNAs
- 발행사항
- [Sl] : Georgia Institute of Technology, 2025
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2025
- 형태사항
- 158 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 87-05, Section: B.
- 주기사항
- Advisor: Paaby, Annalise.
- 학위논문주기
- Thesis (Ph.D.)--Georgia Institute of Technology, 2025.
- 초록/해제
- 요약A central question in evolutionary biology is how genes evolve over time and how mutations in those genes affect fitness. How a mutation affects fitness may depend in part upon mutations at other sites. For example, the negative impact of a bad mutation may be compensated by other mutations that restore or enhance function. Understanding this dynamic is crucial to elucidating not just the evolution of genes, but the evolution of complex traits, including interactions between genes.This thesis is structured into three related projects that examine the following fundamental questions: 1. How do genes evolve, and what does the compensatory evolution pattern of single-copy genes look like? Specifically, I explored mutations in mitochondrial tRNAs (mt-tRNAs) in Caenorhabditis nematodes to identify patterns of compensatory evolution over short and intermediate evolutionary timescales, including interactions between mt-tRNAs and associated factors encoded in the nuclear genome. 2. To what extent can computational techniques enhance our understanding of the impact of mutations, particularly on overall fitness? In this project, I utilized experimentally derived fitness estimates for thousands of S. cerevisiae allelic variants of a nuclear-encoded arginine tRNA (tRNACCU). I assessed how well computational inferences from sequence information, such as secondary structure prediction and the minimum free energy folding score, explained fitness variation. 3. Can machine learning improve upon computational fitness prediction and address the limitations of existing prediction tools? In this project, I developed an inclusive machine learning model that integrates multiple features to estimate fitness from sequence data. Together, these studies aim to provide a more comprehensive understanding of the dynamics of tRNA evolution by combining advanced computational techniques with concepts of evolutionary biology.
- 일반주제명
- Protein synthesis
- 일반주제명
- CRISPR
- 일반주제명
- Biosynthesis
- 일반주제명
- Mutation
- 일반주제명
- Genetic engineering
- 일반주제명
- Amino acids
- 일반주제명
- Feature selection
- 일반주제명
- Genomes
- 일반주제명
- Energy
- 일반주제명
- Genes
- 일반주제명
- Nematodes
- 일반주제명
- Mutagenesis
- 일반주제명
- Polypeptides
- 일반주제명
- Transfer RNA
- 일반주제명
- Animal reproduction
- 일반주제명
- Animal sciences
- 일반주제명
- Bioinformatics
- 일반주제명
- Genetics
- 일반주제명
- Parasitology
- 일반주제명
- Engineering
- 기본자료저록
- Dissertations Abstracts International. 87-05B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■020 ▼a9798263342258
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■035 ▼a(MiAaPQ)GeorgiaTech77775
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a572.4
■1001 ▼aWang, Ling.
■24510▼aEvolution of Essential and Ancient Genes: Understanding and Modeling Fitness in Transfer RNAs
■260 ▼a[Sl]▼bGeorgia Institute of Technology▼c2025
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2025
■300 ▼a158 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 87-05, Section: B.
■500 ▼aAdvisor: Paaby, Annalise.
■5021 ▼aThesis (Ph.D.)--Georgia Institute of Technology, 2025.
■520 ▼aA central question in evolutionary biology is how genes evolve over time and how mutations in those genes affect fitness. How a mutation affects fitness may depend in part upon mutations at other sites. For example, the negative impact of a bad mutation may be compensated by other mutations that restore or enhance function. Understanding this dynamic is crucial to elucidating not just the evolution of genes, but the evolution of complex traits, including interactions between genes.This thesis is structured into three related projects that examine the following fundamental questions: 1. How do genes evolve, and what does the compensatory evolution pattern of single-copy genes look like? Specifically, I explored mutations in mitochondrial tRNAs (mt-tRNAs) in Caenorhabditis nematodes to identify patterns of compensatory evolution over short and intermediate evolutionary timescales, including interactions between mt-tRNAs and associated factors encoded in the nuclear genome. 2. To what extent can computational techniques enhance our understanding of the impact of mutations, particularly on overall fitness? In this project, I utilized experimentally derived fitness estimates for thousands of S. cerevisiae allelic variants of a nuclear-encoded arginine tRNA (tRNACCU). I assessed how well computational inferences from sequence information, such as secondary structure prediction and the minimum free energy folding score, explained fitness variation. 3. Can machine learning improve upon computational fitness prediction and address the limitations of existing prediction tools? In this project, I developed an inclusive machine learning model that integrates multiple features to estimate fitness from sequence data. Together, these studies aim to provide a more comprehensive understanding of the dynamics of tRNA evolution by combining advanced computational techniques with concepts of evolutionary biology.
■590 ▼aSchool code: 0078.
■650 4▼aProtein synthesis
■650 4▼aCRISPR
■650 4▼aBiosynthesis
■650 4▼aMutation
■650 4▼aGenetic engineering
■650 4▼aAmino acids
■650 4▼aFeature selection
■650 4▼aGenomes
■650 4▼aEnergy
■650 4▼aGenes
■650 4▼aNematodes
■650 4▼aMutagenesis
■650 4▼aPolypeptides
■650 4▼aTransfer RNA
■650 4▼aAnimal reproduction
■650 4▼aAnimal sciences
■650 4▼aBioinformatics
■650 4▼aGenetics
■650 4▼aParasitology
■650 4▼aEngineering
■690 ▼a0791
■690 ▼a0475
■690 ▼a0800
■690 ▼a0715
■690 ▼a0369
■690 ▼a0718
■690 ▼a0537
■71020▼aGeorgia Institute of Technology.
■7730 ▼tDissertations Abstracts International▼g87-05B.
■790 ▼a0078
■791 ▼aPh.D.
■792 ▼a2025
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17360435▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.


