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Relevant bibliographies by topics / Fine-scale genetic structure / Dissertations / Theses

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Dissertations / Theses on the topic 'Fine-scale genetic structure'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Giemza, Joanna. "Fine-scale genetic population structure in France." Thesis, Nantes, 2019. http://www.theses.fr/2019NANT1007/document.

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La structure génétique à fine échelle des populations humaines est intéressante pour deux raisons principales : 1) elle reflète des événements historiques et démographiques, 2) elle informe la recherche sur les études d’association de maladies. Cette thèse a pour objectif de procéder à une analyse approfondie de la structure génétique de la population de France métropolitaine dans un premier temps, en de façon plus détaillée de la population du nord-ouest de la France, et de mettre en lumière les événements historiques, démographiques et culturels qui l’ont façonnés, en tirant parti de trois j

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2

de, Graaf Ramona Christine. "Fine-scale population genetic structure of the eastern Pacific bay pipefish, Syngnathus leptorhynchus." Thesis, University of British Columbia, 2006. http://hdl.handle.net/2429/32342.

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Seascapes are complex systems with features that both restrict and enhance dispersal and gene flow among individuals. Understanding factors shaping genetic diversity and genetic population substructure can assist in planning effective conservation areas. Syngnathus leptorhynchus is an eelgrass-dependent fish species ranging from Alaska to Mexico. Pipefish males brood eggs in a specialized brood pouch until their emergence as fully developed young. S. leptorhynchus has a body form that presumably reflects adaptations to mimic Zostera marina L. blades which may, in combination with the pro

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3

Casey, Ashley E. "Fine scale genetic structure and extra-pair parentage in the socially monogamous Upland Sandpiper." Thesis, Manhattan, Kan. : Kansas State University, 2008. http://hdl.handle.net/2097/951.

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4

Venn, Oliver Claude. "Inferring the fine-scale structure and evolution of recombination from high-throughput genome sequencing." Thesis, University of Oxford, 2013. http://ora.ox.ac.uk/objects/uuid:b74f6706-a37d-4d71-975d-02e0f79ccdf1.

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In eukaryotes, recombination plays a critical role in both the production of viable gametes and as a population genetic process. Here, we are interested in studying recombination as it provides insight into a process that has shaped variation. To this end, we study the evolution of cross-over rates in chimpanzees and humans through two experiments. Components of the recombination machinery are well described in yeast and C. elegans, but less so in other species. In humans, cross-over rates vary across physical scales and occur predominantly in narrow ∼2 kb regions called hotspots, where hotspo

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5

Prentis, Peter. "Seed dispersal, germination and fine-scale genetic structure in the stream lily, Helmholtzia glaberrima (philydraceae)." Thesis, Queensland University of Technology, 2007. https://eprints.qut.edu.au/16441/1/Peter_Prentis_Thesis.pdf.

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Seed dispersal in aquatic habitats is often considered to be a complex multistage process, where initial seed shadows are redistributed by water (hydrochory). The roles of hydrochory in seed dispersal and influencing population genetic structure were examined in Helmholtzia glaberrima using both ecological and genetic techniques. Ecological experiments showed that water can redistribute seeds and seedlings over local scales and that hydrochory can provide the potential for very long distance seed and seedling dispersal. Patterns of seedling genetic structure were affected by micro-drainages th

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6

Prentis, Peter. "Seed dispersal, germination and fine-scale genetic structure in the stream lily, Helmholtzia glaberrima (philydraceae)." Queensland University of Technology, 2007. http://eprints.qut.edu.au/16441/.

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Seed dispersal in aquatic habitats is often considered to be a complex multistage process, where initial seed shadows are redistributed by water (hydrochory). The roles of hydrochory in seed dispersal and influencing population genetic structure were examined in Helmholtzia glaberrima using both ecological and genetic techniques. Ecological experiments showed that water can redistribute seeds and seedlings over local scales and that hydrochory can provide the potential for very long distance seed and seedling dispersal. Patterns of seedling genetic structure were affected by micro-drainages th

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7

Chacon, Duque Juan Camilo. "Genetic history of Latin America : fine-scale population structure, sub-continental ancestry and phenotypic diversity." Thesis, University College London (University of London), 2018. http://discovery.ucl.ac.uk/10045516/.

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The history of Latin America involved extensive genetic admixture, particularly between Native Americans, Europeans and Africans. Although these conti-nental contributions to the genetic make-up of the region have been explored previously with genetic data, more precise information about sub-continental contributions has proven elusive. Applying new haplotype-based approaches to ~600,000 SNPs in ~7,000 Latin Americans from Brazil, Chile, Colombia, Mexico and Peru, this PhD thesis provides a comprehensive analysis of the sub-continental ancestry and demographic history of Latin America at a res

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8

Corrales, Duque Carolina. "Population Genetic Structure of Black Grouse (Tetrao tetrix) : From a Large to a Fine Scale Perspective." Doctoral thesis, Uppsala universitet, Institutionen för ekologi och genetik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-150117.

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Black grouse (Tetrao tetrix) is a bird species with a lek mating system found in the Palearctic boreal taiga. It is assumed that it has a continuous distribution along Scandinavia and Siberia, whereas in Central Europe it has declined during the last decades. The primary objective of this thesis was to obtain a deeper understanding of the history, systematic classification and the genetic structure of black grouse on different geographical scales using microsatellites and control region mtDNA sequences (CR). I determined how much the mating system, habitat fragmentation and historical populati

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9

Clark, AnnMarie. "Using microsatellite loci to determine the fine scale genetic structure of a complex of timber rattlesnake (Crotalus horridus) dens in northeastern New York." [Gainesville, Fla.] : University of Florida, 2006. http://purl.fcla.edu/fcla/etd/UFE0014222.

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10

Bowkett, Andrew Edward. "Genetic patterns in forest antelope populations : implications for the conservation of key species in the Udzungwa Mountains, Tanzania." Thesis, University of Exeter, 2012. http://hdl.handle.net/10871/9242.

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The field of conservation genetics, in combination with non-invasive sampling, provides a powerful set of tools for investigating the conservation status and natural history of rare species that are otherwise difficult to study. A systematic literature review demonstrated that this is certainly the case for many forest associated antelope species, which are poorly studied and yet constitute some of the most heavily hunted wildlife in Africa. The aim of the present study was to use non-invasive sampling to investigate genetic patterns in forest antelope populations in the high-biodiversity Udzu

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11

Lopez-Gallego, Cristina. "Effects of habitat degradation on the evolutionary dynamics of populations in a rainforest cycad (Gymnospermae)." ScholarWorks@UNO, 2007. http://scholarworks.uno.edu/td/555.

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In addition to habitat loss and fragmentation, habitat degradation can have important consequences for biodiversity and population persistence, including effects on ecological and genetic processes beyond decreased demographic viability and the loss of genetic variation. Particularly interesting is the potential for evolutionary changes and adaptation to degraded habitats, that can affect population viability even in the short-term. Here, I explore how environmental changes after habitat degradation affect the evolutionary dynamics of populations of the rainforest cycad Zamia fairchildiana, sp

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12

Ewedje, Eben-Ezer. "Biologie de la reproduction, phylogéographie et diversité de l'arbre à beurre Pentadesma butyracea Sabine, Clusiaceae: implications pour sa conservation au Bénin." Doctoral thesis, Universite Libre de Bruxelles, 2012. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/209647.

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Pentadesma butyracea Sabine est l’une des quatre espèces du genre Pentadesma endémique de l’Afrique. Elle est distribuée de la Sierra Léone au Gabon dans deux grands types d’habitats :les forêts denses humides discontinues du domaine guinéo-congolais (Haute- et Basse-Guinée) et le domaine soudanien du couloir sec du Dahomey (assimilé à une barrière à l’échange de gènes et d’espèces entre les deux blocs guinéo-congolais). Dans ce dernier, l’espèce se retrouve dans des galeries forestières et occupe une place capitale dans le développement socio-économique des communautés locales en raison des m

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13

Theim, Terra Jean. "Fine-scale genetic structure, gene flow and population genetics in neotropical forest Psychotria (rubiaceae)." 2006. http://www.library.wisc.edu/databases/connect/dissertations.html.

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14

Berube, Yanik Jonathan. "Clonality, fine scale genetic diversity and genetic structure in natural populations of Chamaecyparis nootkatensis revealed by microsatellite markers." Thesis, 2003. http://hdl.handle.net/2429/14439.

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Layering, a form of clonal propagation, has been documented to occur in Chamaecyperis nootkatensis (D. Don) Spach (Cupressaceae), but little is known about the frequency and spatial extent of this phenomenon. Clonal reproduction has the potential to greatly affect population genetics parameters such as fine scale genetic variation and genetic structure, and, ultimately, how populations evolve. C. nootkatensis is an economically important coniferous tree species in the forests of the Pacific Northwest. Five microsatellite loci were developed from an enriched genomic library of C. nootkate

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15

Chiao, Yi-Kai, and 喬奕凱. "Fine scale genetic structure of Kurixalus eiffingeri in bamboo forest patches at Chitou, Nantou County." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/33180940885994405710.

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碩士<br>東海大學<br>生命科學系<br>102<br>Habitat fragmentation hampers animal dispersal and causes genetic differentiation among subpopulations. Moreover, this increases the probability of local extinction. The purpose of this study was to assess the fine scale genetic structure of Kurixalus eiffingeri in patchy bamboo forests at Chitou. Kurixalus eiffingeri is a small frog that commonly breeds in bamboo stumps and exhibits complex parental care including paternal care to embryos and maternal egg provisioning to tadpoles. Preliminary field survey revealed that adults had small activity ranges and a high

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16

(7023467), Charity Grace Owings. "Mediators of Fine-Scale Population Genetic Structure in the Black Blow Fly, Phormia regina (Meigen) (Diptera: Calliphoridae)." Thesis, 2019.

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Population genetic structure is difficult to assess in blow flies (Diptera: Calliphoridae) due to high connectivity and genetic diversity of subpopulations. Previous studies revealed high relatedness among individuals within wild samples of blow fly populations, however broad geographic structure was absent. The aim of this research was to determine if blow fly genetic structure exists at a fine spatiotemporal resolution and, if so, to elucidate the influence of environmental factors and resource availability on fly genetics. Specifically, blow fly population genetic patterns were

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17

Owings, Charity Grace. "Mediators of Fine-Scale Population Genetic Structure in the Black Blow Fly, Phormia regina (Meigen) (Diptera: Calliphoridae)." Thesis, 2019. http://hdl.handle.net/1805/19979.

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Indiana University-Purdue University Indianapolis (IUPUI)<br>Population genetic structure is difficult to assess in blow flies (Diptera: Calliphoridae) due to high connectivity and genetic diversity of subpopulations. Previous studies revealed high relatedness among individuals within wild samples of blow fly populations, however broad geographic structure was absent. The aim of this research was to determine if blow fly genetic structure exists at a fine spatiotemporal resolution and, if so, to elucidate the influence of environmental factors and resource availability on fly genetics. Specifi

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18

Gatins, Remy. "Fine-scale population structure of two anemones (Stichodactyla gigantea and Heteractis magnifica) in Kimbe Bay, Papua New Guinea." Thesis, 2014. http://hdl.handle.net/10754/336502.

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Anemonefish are one of the main groups that have been used over the last decade to empirically measure larval dispersal and connectivity in coral reef populations. A few species of anemones are integral to the life history of these fish, as well as other obligate symbionts, yet the biology and population structure of these anemones remains poorly understood. The aim of this study was to measure the genetic structure of these anemones within and between two reefs in order to assess their reproductive mode and dispersal potential. To do this, we sampled almost exhaustively two anemones species (

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