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Evolution by Ancient Gene and Genome Duplication in Hexapods and Land Plants.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Evolution by Ancient Gene and Genome Duplication in Hexapods and Land Plants./
作者:	Li, Zheng.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2020,
面頁冊數:	293 p.
附註:	Source: Dissertations Abstracts International, Volume: 82-04, Section: B.
Contained By:	Dissertations Abstracts International82-04B.
標題:	Biology. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=28148680
ISBN:	9798678125620

Evolution by Ancient Gene and Genome Duplication in Hexapods and Land Plants.
Li, Zheng.

Evolution by Ancient Gene and Genome Duplication in Hexapods and Land Plants. - Ann Arbor : ProQuest Dissertations & Theses, 2020 - 293 p.

Source: Dissertations Abstracts International, Volume: 82-04, Section: B.

Thesis (Ph.D.)--The University of Arizona, 2020.

This item must not be sold to any third party vendors.

Gene and genome duplications have been found across the eukaryotic tree of life. Yet, many aspects of evolution by gene and genome duplications remain unclear, especially ancient duplications. In my dissertation, I focus on the incidence of ancient gene and genome duplication in different lineages of land plants and hexapods, their impact on genome evolution, and the pattern and processes of diploidization following polyploidy. In Appendix A, I use transcriptomes of gymnosperms and outgroups, and a novel phylogenetic algorithm to provide the first comprehensive study of ancient WGD in gymnosperms. In Appendix B, I use over 150 insect genomes and transcriptomes to infer ancient WGDs and other large-scale gene duplications during the evolution of hexapods. In Appendix C, I investigate ancient WGD in ferns from over 140 fern transcriptomes and test the long standing hypothesis on high chromosome number in ferns. In Appendix D, I summarize current studies on the patterns and processes of diploidization in the land plants and provide directions for testing hypotheses and understanding diploidization in the future. As a whole, this work improves our understanding of the mode and tempo of eukaryotic genome evolution and diversity.

ISBN: 9798678125620Subjects--Topical Terms:

522710
Biology.
Subjects--Index Terms:

Diploidization

Evolution by Ancient Gene and Genome Duplication in Hexapods and Land Plants.
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300 $a 293 p.
500 $a Source: Dissertations Abstracts International, Volume: 82-04, Section: B.
500 $a Includes supplementary digital materials.
500 $a Advisor: Barker, Michael S.
502 $a Thesis (Ph.D.)--The University of Arizona, 2020.
506 $a This item must not be sold to any third party vendors.
520 $a Gene and genome duplications have been found across the eukaryotic tree of life. Yet, many aspects of evolution by gene and genome duplications remain unclear, especially ancient duplications. In my dissertation, I focus on the incidence of ancient gene and genome duplication in different lineages of land plants and hexapods, their impact on genome evolution, and the pattern and processes of diploidization following polyploidy. In Appendix A, I use transcriptomes of gymnosperms and outgroups, and a novel phylogenetic algorithm to provide the first comprehensive study of ancient WGD in gymnosperms. In Appendix B, I use over 150 insect genomes and transcriptomes to infer ancient WGDs and other large-scale gene duplications during the evolution of hexapods. In Appendix C, I investigate ancient WGD in ferns from over 140 fern transcriptomes and test the long standing hypothesis on high chromosome number in ferns. In Appendix D, I summarize current studies on the patterns and processes of diploidization in the land plants and provide directions for testing hypotheses and understanding diploidization in the future. As a whole, this work improves our understanding of the mode and tempo of eukaryotic genome evolution and diversity.
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650 4 $a Botany. $3 516217
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653 $a Diploidization
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653 $a Genome duplication
653 $a Hexapods
653 $a Plants
653 $a Polyploidy
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