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Evolution of the Potentilla breweri Complex: Hybridization and Radiation in the Great Basin Sky Islands
Evolution of the Potentilla breweri Complex: Hybridization and Radiation in the Great Basin Sky Islands
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202105142
- ISBN
- 9798293816507
- DDC
- 580
- 서명/저자
- Evolution of the Potentilla breweri Complex: Hybridization and Radiation in the Great Basin Sky Islands
- 발행사항
- [Sl] : The University of Wisconsin - Madison, 2025
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2025
- 형태사항
- 262 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 87-03, Section: B.
- 주기사항
- Advisor: Sytsma, Kenneth J.
- 학위논문주기
- Thesis (Ph.D.)--The University of Wisconsin - Madison, 2025.
- 초록/해제
- 요약The Potentilla breweri complex (Rosaceae: Potentilleae), a taxonomically difficult sky-island group from the Great Basin, Sierra Nevada, and northern Rocky Mountains, is examined from natural history, molecular-phylogenetic, and taxonomic angles in search of better insight on its obscure and fascinating evolutionary dynamics. This integrative perspective brings together extensive field observation, a nine-year ongoing common garden experiment, extensive morphological and taxonomic examination, ecological niche modeling, genome size measurement, phylogenomics, phylogeography, network phylogeny, and multiple new taxon descriptions.In the Introduction, the study group is introduced and previous work on it is summarized, including its model role in pioneering biosystematics and its wide range of interesting features. The author's species concept and the significance of these particular plants are also described.Chapter 1 reports natural-history observations of the P. breweri complex's morphology, ecology, and cytology. It discusses the details of morphology and habitat, including preliminary morphometric results and ecological niche modeling, and reports the results of DNA content measurements and a long-running common garden experiment. Its findings depict a Pleistocene plant group surviving in post-glacial refugia among the scattered high mountain meadows of the Great Basin and Pacific cordillera.Chapter 2 examines the complex's molecular phylogeny via Sanger, anchored phylogenomic, and GBS sequencing. Maximum-likelihood trees, implicit networks, population genetic statistics, fossil-calibrated dating, and ancestral area reconstruction reveal both marked taxonomic-phylogenetic cohesion and extensive discordance consistent with a long history of hybridization among exceptionally long-lived plants, with numerous genotypes dating back well over 10,000 years.Finally, Chapter 3 distills the previous findings into taxonomic publications: two published taxon descriptions, one published re-circumscription, and drafts of two more taxon descriptions to be published in the near future.
- 일반주제명
- Botany
- 일반주제명
- Systematic biology
- 일반주제명
- Evolution & development
- 일반주제명
- Genetics
- 키워드
- Alpha taxonomy
- 키워드
- Biogeography
- 키워드
- Genomics
- 키워드
- Montane
- 기타저자
- The University of Wisconsin - Madison Botany
- 기본자료저록
- Dissertations Abstracts International. 87-03B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
008260126s2025 us c eng d■001000017359587
■00520260202105142
■006m o d
■007cr#unu||||||||
■020 ▼a9798293816507
■035 ▼a(MiAaPQ)AAI32240811
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a580
■1001 ▼aDiNicola, Alexa C.
■24510▼aEvolution of the Potentilla breweri Complex: Hybridization and Radiation in the Great Basin Sky Islands
■260 ▼a[Sl]▼bThe University of Wisconsin - Madison▼c2025
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2025
■300 ▼a262 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 87-03, Section: B.
■500 ▼aAdvisor: Sytsma, Kenneth J.
■5021 ▼aThesis (Ph.D.)--The University of Wisconsin - Madison, 2025.
■520 ▼aThe Potentilla breweri complex (Rosaceae: Potentilleae), a taxonomically difficult sky-island group from the Great Basin, Sierra Nevada, and northern Rocky Mountains, is examined from natural history, molecular-phylogenetic, and taxonomic angles in search of better insight on its obscure and fascinating evolutionary dynamics. This integrative perspective brings together extensive field observation, a nine-year ongoing common garden experiment, extensive morphological and taxonomic examination, ecological niche modeling, genome size measurement, phylogenomics, phylogeography, network phylogeny, and multiple new taxon descriptions.In the Introduction, the study group is introduced and previous work on it is summarized, including its model role in pioneering biosystematics and its wide range of interesting features. The author's species concept and the significance of these particular plants are also described.Chapter 1 reports natural-history observations of the P. breweri complex's morphology, ecology, and cytology. It discusses the details of morphology and habitat, including preliminary morphometric results and ecological niche modeling, and reports the results of DNA content measurements and a long-running common garden experiment. Its findings depict a Pleistocene plant group surviving in post-glacial refugia among the scattered high mountain meadows of the Great Basin and Pacific cordillera.Chapter 2 examines the complex's molecular phylogeny via Sanger, anchored phylogenomic, and GBS sequencing. Maximum-likelihood trees, implicit networks, population genetic statistics, fossil-calibrated dating, and ancestral area reconstruction reveal both marked taxonomic-phylogenetic cohesion and extensive discordance consistent with a long history of hybridization among exceptionally long-lived plants, with numerous genotypes dating back well over 10,000 years.Finally, Chapter 3 distills the previous findings into taxonomic publications: two published taxon descriptions, one published re-circumscription, and drafts of two more taxon descriptions to be published in the near future.
■590 ▼aSchool code: 0262.
■650 4▼aBotany
■650 4▼aSystematic biology
■650 4▼aEvolution & development
■650 4▼aGenetics
■653 ▼aAlpha taxonomy
■653 ▼aBiogeography
■653 ▼aGenomics
■653 ▼aMontane
■653 ▼aPotentilla breweri
■690 ▼a0309
■690 ▼a0423
■690 ▼a0412
■690 ▼a0369
■71020▼aThe University of Wisconsin - Madison▼bBotany.
■7730 ▼tDissertations Abstracts International▼g87-03B.
■790 ▼a0262
■791 ▼aPh.D.
■792 ▼a2025
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17359587▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.


