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Meiotic Crossover Patterning in Drosophila melanogaster.- [electronic resource]
Meiotic Crossover Patterning in Drosophila melanogaster.- [electronic resource]
상세정보
- 자료유형
- 학위논문(국외)
- 자관 청구기호
- 기본표목-개인명
- 표제와 책임표시사항
- Meiotic Crossover Patterning in Drosophila melanogaster. - [electronic resource] / Hartmann, Michaelyn Ann.
- 발행, 배포, 간사 사항
- 발행, 배포, 간사 사항
- 형태사항
- 1 online resource(142 p.)
- 일반주기
- Source: Dissertations Abstracts International, Volume: 81-03, Section: B.
- 일반주기
- Advisor: Sekelsky, Jeff
- 학위논문주기
- Thesis (Ph.D.)--The University of North Carolina at Chapel Hill, 2019.
- 이용제한주기
- This item must not be sold to any third party vendors.
- 요약 등 주기
- 요약Meiosis is an essential process to halve an organism's genome in preparation for transmission to the next generation. Recombination between homologous chromosomes is necessary for the proper segregation of chromosomes, and allows the generation of genetic diversity. Mistakes in meiosis can lead to aneuploidy, therefore, to minimize mistakes, recombination is a highly regulated process. Crossovers are patterned along a chromosome, and this patterning is dictated by three phenomena known as interference, assurance, and the centromere effect. Interference assures that a crossover does not occur too close to another crossover, assurance maintains that each chromosome gets at least one crossover, and the centromere effect suppresses crossovers that occur too close to the centromere. The work detailed in this dissertation first focuses on the proteins involved in crossover formation and then investigates the regulation of the suppression of centromere-proximal crossovers. I have gained insight into a potential endonuclease, Ankle1, as well as further elucidated the role of the mei-MCM complex in creating meiotic crossovers. In addition, I discovered that centromere-proximal crossover suppression is regulated both by the highly-repetitive heterochromatin adjacent to the centromere, as well as the protein-mediated centromere effect, which extends into the euchromatin and dissipates with distance from the centromere. Overall these findings have provided insight into the mechanisms of crossover formation and patterning and provided the foundation for future studies of meiotic crossover control.
- 주제명부출표목-일반주제명
- 주제명부출표목-일반주제명
- 부출표목-단체명
- 기본자료저록
- Dissertations Abstracts International. 81-03B.
- 기본자료저록
- Dissertation Abstract International
- 전자적 위치 및 접속
- 원문정보보기
MARC
008200317s2019 ulk s 00 eng■001000015492384
■00520200217181648
■007cr
■020 ▼a9781085753234
■040 ▼d225006
■08204▼a574
■090 ▼a전자도서(박사논문)
■1001 ▼aHartmann, Michaelyn Ann.
■24510▼aMeiotic Crossover Patterning in Drosophila melanogaster.▼h[electronic resource]▼cHartmann, Michaelyn Ann.
■260 ▼a[S.l.]▼bThe University of North Carolina at Chapel Hill. ▼c2019
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2019
■300 ▼a1 online resource(142 p.)
■500 ▼aSource: Dissertations Abstracts International, Volume: 81-03, Section: B.
■500 ▼aAdvisor: Sekelsky, Jeff
■5021 ▼aThesis (Ph.D.)--The University of North Carolina at Chapel Hill, 2019.
■506 ▼aThis item must not be sold to any third party vendors.
■520 ▼aMeiosis is an essential process to halve an organism's genome in preparation for transmission to the next generation. Recombination between homologous chromosomes is necessary for the proper segregation of chromosomes, and allows the generation of genetic diversity. Mistakes in meiosis can lead to aneuploidy, therefore, to minimize mistakes, recombination is a highly regulated process. Crossovers are patterned along a chromosome, and this patterning is dictated by three phenomena known as interference, assurance, and the centromere effect. Interference assures that a crossover does not occur too close to another crossover, assurance maintains that each chromosome gets at least one crossover, and the centromere effect suppresses crossovers that occur too close to the centromere. The work detailed in this dissertation first focuses on the proteins involved in crossover formation and then investigates the regulation of the suppression of centromere-proximal crossovers. I have gained insight into a potential endonuclease, Ankle1, as well as further elucidated the role of the mei-MCM complex in creating meiotic crossovers. In addition, I discovered that centromere-proximal crossover suppression is regulated both by the highly-repetitive heterochromatin adjacent to the centromere, as well as the protein-mediated centromere effect, which extends into the euchromatin and dissipates with distance from the centromere. Overall these findings have provided insight into the mechanisms of crossover formation and patterning and provided the foundation for future studies of meiotic crossover control.
■650 4▼aGenetics.
■650 4▼aCellular biology.
■71020▼aThe University of North Carolina at Chapel Hill▼bGenetics and Molecular Biology.
■7730 ▼tDissertations Abstracts International▼g81-03B.
■773 ▼tDissertation Abstract International
■791 ▼aPh.D.
■792 ▼a2019
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T15492384▼nKERIS
![Meiotic Crossover Patterning in Drosophila melanogaster. - [electronic resource] / Hartman...](/Sponge/Images/bookDefaults/DDbookdefaultsmall.png)


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