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Dissertations / Theses on the topic 'Gene conservation'

Author: Grafiati

Published: 4 June 2025

Last updated: 1 August 2025

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1

Gozé, Catherine. "Les gènes sox : clonages, caractérisations et conservation dans le règne animal." Montpellier 1, 1995. http://www.theses.fr/1995MON1T018.

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2

Gao, Lifeng. "Evolutionary conservation of a trypsin gene cluster within the genus Drosophila." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/MQ38750.pdf.

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3

Liu, Brendan F. "Developing a gene model for simulations that incorporates multi-species conservation." Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/91838.

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Thesis: M. Eng., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2014.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 69-71).<br>The genetic architecture, the number, frequency, and effect size of disease causing alleles for many common diseases including Type 2 Diabetes is not fully understood. Genetic simulations can be used to make predictions under specified genetic architecture models. Models whose predictions are inconsistent with empirical data can be rejected. We extended a gene simulation model p

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4

Charlier, Johan. "Monitoring gene level biodiversity - aspects and considerations in the context of conservation." Doctoral thesis, Stockholms universitet, Zoologiska institutionen, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-62796.

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The objectives of this thesis relate to questions needed to be addressed in the context of genetic monitoring for implementing the Convention on Biological Diversity for the gene level. Genetic monitoring is quantifying temporal changes in population genetic metrics. Specific goals of this thesis include i) synthesizing existing information relevant to genetic monitoring of Swedish species, ii) providing a genetic baseline for the Swedish moose, iii) evaluating the relative performance of nuclear versus organelle genetic markers for detecting population divergence, iv) actually monitoring the

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5

Yoshida, Erin N. "Molecular evolutionary conservation of the Drosophila alpha-amylase gene and its regulatory systems." Thesis, University of Ottawa (Canada), 1998. http://hdl.handle.net/10393/8819.

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Alpha-amylase is a digestive enzyme involved in the metabolism of starch. It is found in a wide variety of organisms, and its expression is often regulated by carbon source. The D. melanogaster $\alpha$-amylase gene was used here to show the evolutionary conservation of both a structural gene as well as its glucose repression regulatory system. The repression machinery was shown to be functionally conserved between yeast and flies, as the $\alpha$-amylase promoter was used to express luciferase-based reporter constructs in a glucose repressible manner in Saccharomyces. The repression motifs of

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6

Yoshida, Erin N. "Molecular evolutionary conservation of the Drosophila Ã-amylase gene and its regulatory systems." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp02/NQ28387.pdf.

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7

Lemieux, Michée. "Cytoplasmic DNA polymorphisms in eastern hemlock: Genogeographic analyses and implications for gene conservation." Thesis, Université Laval, 2010. http://www.theses.ulaval.ca/2010/27408/27408.pdf.

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8

Lemieux, Michée Joseph. "Cytoplasmic DNA polymorphisms in eastern hemlock : genogeographic analyses and implications for gene conservation." Master's thesis, Université Laval, 2010. http://hdl.handle.net/20.500.11794/21903.

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Tableau d’honneur de la Faculté des études supérieures et postdoctorales, 2010-2011<br>La distribution géographique actuelle de la pruche de l'est (Tsuga canadensis L.) se situe au sud-est du Canada et longe les Appalaches aux États-Unis. Des efforts de développement de marqueurs d'ADN cytoplasmique ont été entrepris dans cette étude afin de vérifier si la diversité génétique de l'espèce était uniforme ou structurée, une information pertinente pour guider les efforts de conservation. Parmi sa distribution, soixante populations (n = 892) ont été échantillonnées. Aucun polymorphisme d'ADN mitoch

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9

Varas-Nelson, Angela Cora. "Conservation Genetics of Black Bears in Arizona and Northern Mexico." Diss., The University of Arizona, 2010. http://hdl.handle.net/10150/195033.

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Because American black bears (Ursus americanus) are an important game species in Arizona and are endangered in México, an understanding of the population structure, gene flow, and connectivity are important for effective management. Black bears inhabit coniferous and broadleaf deciduous woodlands in southern Arizona and northern México, usually in sky islands (sky islands are mountains that rise from the desert and are isolated from each other). Because a single sky island is too small to support a viable bear population, black bears move through desert lowlands to reach other sky islands. My

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10

Soussi, Thierry. "La proteine p53 : conservation genetique et biochimique au cours de l'evolution." Paris 7, 1987. http://www.theses.fr/1987PA077243.

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11

Nguyen, Duc Bach, Van Hai Tong, Van Hung Nguyen, and Huu Ton Phan. "Collection, conservation, exploitation and development of rice genetic resource of Vietnam." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-190749.

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Genetic resources are important for the development of every country and for humanity. Collection, conservation and reasonable utilization of genetic resource is required mission. Understanding the importance of genetic resource, especially rice germplasm, since 2001, Center for conservation and development of crop genetic resources (CCD-CGR) of Hanoi University of Agriculture (Vietnam National University of Agriculture) has been collected, conserved and evaluated rice germplasm from different provinces of Vietnam for breeding programs. So far, 1090 accessions of local rice of Vietnam have bee

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12

Grasser, Florian. "Nuclear gene positioning in the context of evolutionary conservation and genomic innovation in vertebrates." Diss., kostenfrei, 2008. http://edoc.ub.uni-muenchen.de/9334/.

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13

Dodge, Danielle. "Population Structure and Gene Expression of the Coral Montastraea cavernosa in the Northern Florida Reef Tract." Thesis, Florida Atlantic University, 2018. http://pqdtopen.proquest.com/#viewpdf?dispub=10682376.

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<p> Coral reefs on Florida’s Reef Tract (FRT) are susceptible to many anthropogenic influences including controlled freshwater discharges and agricultural runoff as well as high natural environmental variability from seasonal rainfall, runoff and upwelling. To better understand coral population structure and responses to sublethal stressors, populations of the scleractinian coral <i> Montastraea cavernosa</i> in the northern FRT were examined using a combination of genomic and transcriptomic techniques. Microsatellite genetic markers identified high local retention among sites and a slig

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14

Smith, Michelle Kathleen. "Complex regulation, multiple developmental functions, and phylogenetic conservation of misfire, the Drosophila melanogaster ferlin gene /." Thesis, Connect to this title online; UW restricted, 2006. http://hdl.handle.net/1773/5155.

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15

May, Sarah Elizabeth. "Indirect estimates of gene flow and its conservation implications in the striped newt (Notophthalmus perstriatus)." Master's thesis, University of Central Florida, 2011. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/4797.

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This study used indirect methods to estimate patterns of gene flow in a rare salamander species, the striped newt (Notophthalmus perstriatus). First, we used combined genetic and ecological methods to determine whether populations that appear to exist in two regions separated by 125 km, exhibited genetic and ecological distinctness such that the regions demarcate separate conservation units. Using mtDNA (cyt-b), we found that haplotypes were shared between localities within each region but none were shared between regions. Niche-based distribution modeling revealed significant differences in t

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16

Kashimshetty, Yamini. "Population growth and genetic diversity dynamics of modeled conservation methodologies for threatened plant species." University of Cincinnati / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1468512768.

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17

MacMurray, Armand J. (Armand John) 1963. "Use of a conservation-of-linkage strategy to identify a candidate for the rat Lymphopenia gene." Thesis, Massachusetts Institute of Technology, 1999. http://hdl.handle.net/1721.1/8676.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Biology, 1999.<br>Includes bibliographical references.<br>The rat Lymphopenia gene, Lyp, is absolutely required for the development of Insulin-Dependent Diabetes Mellitus (IDDM) in the BioBreeding (BB) rat. In order to overcome the lack of positional cloning resources available in the rat to clone the Lyp gene, we developed and successfully implemented a conservation-of-linkage (COL) cloning strategy. Using the COL between the rat Lyp region and its murine counterpart, we developed large-scale YAC and fine-scale P1/BAC physical m

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18

Harmin, David Alan 1954. "Genomic studies of motif enrichment and conservation in the regulation of gene expression in the brain." Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/43811.

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Thesis (S.M.)--Harvard-MIT Division of Health Sciences and Technology, 2008.<br>Includes bibliographical references (p. 67-69).<br>Several bioinformatic tools will be brought to bear in this thesis to identify specific genomic loci that serve as regulatory gateways of gene expression in brain. These "motifs" are short nucleotide patterns that occur in promoters and 5' or 3' untranslated regions of genes. Occurrences of motifs that function in eukaryotic genomes as, e.g., transcription factor binding sites or targets of RNA interference are assumed to lie at the nexus of several trends. Instanc

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19

Nguyen, Duc Bach, Van Hai Tong, Van Hung Nguyen, and Huu Ton Phan. "Collection, conservation, exploitation and development of rice genetic resource of Vietnam: Short communication." Technische Universität Dresden, 2014. https://tud.qucosa.de/id/qucosa%3A29104.

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Genetic resources are important for the development of every country and for humanity. Collection, conservation and reasonable utilization of genetic resource is required mission. Understanding the importance of genetic resource, especially rice germplasm, since 2001, Center for conservation and development of crop genetic resources (CCD-CGR) of Hanoi University of Agriculture (Vietnam National University of Agriculture) has been collected, conserved and evaluated rice germplasm from different provinces of Vietnam for breeding programs. So far, 1090 accessions of local rice of Vietnam have bee

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20

Demiralay, Burak. "Investigation Of Human Promoter Cpg Content And Methylation Profiles At Different Conservation Levels." Master's thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12614840/index.pdf.

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Methylation of CpG islands located at the promoter regions is a mechanism which controls gene silencing and expression. Hyper or hypo methylation of these sites on promoter sequences have been associated with many diseases, like cancer. Even though promoter CpG islands and their methylation profiles are important regulators of gene expression, the exact mechanism of gene silencing through methylation is not known. Here, we have investigated the status of promoter CpG methylation under various evolutionary pressures by calculating the differences in promoter CpG content and methylation profiles

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21

Rajeshwaran, Rajkumar. "EVOLUTIONARY CONSERVATION OF A POTENTIAL ANTISENSE MECHANISM FOR SAS10 AND RNP-4F GENE EXPRESSION CONTROL IN DROSOPHILA." Miami University / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=miami1154706813.

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22

Knight, Elisabeth D. "The Bird Woman Takes Her Stand : Gene Stratton Porter's Conservancy as seen in "A Girl of the Limberlost" and "The Harvester"." Ohio Dominican University / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=odu1572903002523117.

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23

PISA, GIULIA. "Evaluation of ecological network effectiveness by means of gene flow analysis." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2014. http://hdl.handle.net/10281/51785.

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The aim of this project is to study the fragmentation in broad-leaved forests, so the species selected were mainly linked to this ecosystem. Almost all amphibian species are model candidates for studies of fragmentation effects on connectivity: in fact most amphibian species occur as metapopulations; in addition, they are a taxon particularly susceptible to isolation, as they generally have low dispersal capabilities and are rather philopatric to breeding sites. These characteristics often lead to high genetic differentiation, even at restricted scales. In particular we choose the Fire Salaman

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24

Zehnder, Tobias [Verfasser]. "Computational Approaches for the Prediction of Gene Regulatory Elements and the Analysis of their Evolutionary Conservation / Tobias Zehnder." Berlin : Freie Universität Berlin, 2021. http://d-nb.info/1227925883/34.

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25

Arroyo, Lambaer Denise. "Conserving amphibian diversity: a species inventory and gene flow studies in fragmented montane forest, Mambilla Plateau, Nigeria." Thesis, University of Canterbury. School of Biological Sciences, 2015. http://hdl.handle.net/10092/10867.

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Nigeria is the most densely populated country in Africa and one of the most advanced economically in terms of both industry and soil and landscape utilization. This country is projected to have one of the largest urban growth rates by 2050. Thus, the demands of the rapidly increasing human population and its material consumption represent a severe threat to biodiversity. Nigeria has the highest deforestation rate of natural forest in the world, its original vegetation has largely been replaced by farming activities, urban development and other products of human activities. The principal causes

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26

Veit, M. Lisa. "A study of population genetic structure and gene flow in cerulean warblers (Dendroica cerulea) and the implications for conservation." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape2/PQDD_0018/MQ54491.pdf.

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27

Jackson, Thomas. "POLLEN-MEDIATED GENE FLOW AND GENETIC VARIATION WITHIN MANFREDA VIRGINICA POPULATIONS OCCURRING IN ADAMS COUNTY, OHIO." Ohio University / OhioLINK, 2003. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1059427141.

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28

Chapados, Julie. "Comparative genomics: Using the complete genome sequence of Halobacterium salinarum NRC-1 to assess gene order conservation within the Halobacteriaceae." Thesis, University of Ottawa (Canada), 2002. http://hdl.handle.net/10393/6234.

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Comparative mapping and comparative genomics can be used to study genome stability. The genome organization of different strains, species or genera are compared by using physical maps or complete genome sequences. A previous comparative study determined that there was no gene order conservation between Haloferax volcanii and Halobacterium salinarum at a 15-kbp resolution. My research was designed to assess gene order conservation between certain halophiles at a much finer resolution. This was accomplished by using the only available haloarchaeal genome sequence as a reference. Random gene fra

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29

Winter, Sven [Verfasser], Axel [Gutachter] Janke, and Paul [Gutachter] Dierkes. "Gene flow, population structure and genetic specification of giraffe have implications for their conservation / Sven Winter ; Gutachter: Axel Janke, Paul Dierkes." Frankfurt am Main : Universitätsbibliothek Johann Christian Senckenberg, 2020. http://d-nb.info/1225793165/34.

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30

Buk, Tara B. "Gene Flow Patterns of the Five Lined Skink (Eumeces Fasciatus) in the Fragmented Landscape of Northeast Ohio." University of Akron / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=akron1399675200.

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31

Ito, Hideyuki. "Genetic diversity studies of endangered Grevy’s zebra (Equus grevyi) in the captivity." 京都大学 (Kyoto University), 2016. http://hdl.handle.net/2433/215371.

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32

Kost, Matthew. "Maize and Sunflower of North America: Conservation and Utilization of Genetic Diversity." The Ohio State University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=osu1408642177.

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33

Sherman, Krista Danielle. "Integrative approaches for conservation management of critically endangered Nassau grouper (Epinephelus striatus) in The Bahamas." Thesis, University of Exeter, 2018. http://hdl.handle.net/10871/33061.

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Species conservation is typically founded upon a range of management strategies, which integrate both biological and socioeconomic data. In this thesis, population genetics, acoustic telemetry, spawning aggregation surveys and stakeholder assessments were used to address key knowledge gaps limiting effective conservation management for critically endangered Nassau grouper (Epinephelus striatus) stocks in The Bahamas. A panel of polymorphic microsatellite markers was optimised to assess the genetic population dynamics of more than 400 Nassau grouper sampled throughout the country. Microsatellit

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34

Walsh, Grace. "Whole genome data provides evidence of divergent selection and gene flow between two populations of red grouse Lagopus lagopus scotica with implications for conservation." Thesis, Uppsala universitet, Institutionen för ekologi och genetik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-448638.

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35

Pérez, Rico Yuvia Alhelí. "Zebraﬁsh as a model to determine conserved gene regulatory mechanisms in vertebrates". Electronic Thesis or Diss., Sorbonne université, 2018. https://accesdistant.sorbonne-universite.fr/login?url=https://theses-intra.sorbonne-universite.fr/2018SORUS535.pdf.

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Les super-ampliﬁcateurs et CTCF sont considérés comme des acteurs centraux de l'organisation du génome ayant un impact direct sur la régulation de l'expression génique. Ici, pour mieux comprendre leur conservation fonctionnelle, des analyses de super-ampliﬁcateurs et de CTCF chez le poisson zèbre ont été effectuées. Les super-ampliﬁcateurs annotés dans le génome du poisson zèbre présentent une grande spéciﬁcité cellulaire et tissulaire. Des analyses de conservation indiquent que les super-ampliﬁcateurs n'ont pas une conservation de séquence supérieure à celle des ampliﬁcateurs. En limitant l'a

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36

Cloutier, Dominic. "Conservation genetics of exploited Amazonian forest tree species and the impact of selective logging on inbreeding and gene dispersal in a population of Carapa guianensis." Thesis, McGill University, 2006. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=102969.

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The Amazon region is one of the richest areas on the planet in terms of its biodiversity and natural resources. The large scale harvesting of trees in this region is a relatively new activity, and it is uncertain whether the exploitation of timber species will result in depletion of forest genetic resources. To examine this, I have assessed levels of inbreeding, gene flow, and genetic diversity in populations of Amazonian forest trees undergoing logging. Because of their high variability within populations, microsatellite genetic markers were chosen for the study, and it was verified through a

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37

Prunier, Jérome. "Echantillonnage individu-centré en génétique du paysage : étude de l'impact de la fragmentation d'origine anthropique sur la dispersion du triton alpestre Ichthyosaura alpestris." Thesis, Lyon 1, 2012. http://www.theses.fr/2012LYO10263/document.

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Les activités d'origines anthropiques entraînent des modifications profondes du paysage : dans ce contexte, le succès de dispersion revêt une grande importance pour la persistance à long terme des populations animales et végétales. La génétique du paysage est une discipline récente qui permet de détecter et de modéliser les flux de dispersion de manière indirecte par le biais de l'identification des flux de gènes dans l'espace. Bien qu'il ait été suggéré delongue date qu'un échantillonnage individu-centré pouvait permettre de s'affranchir de certains biais liés à unedélimitation a priorides po

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38

Manceau, Valérie. "Polymorphisme des séquences d'ADN mitochondrial dans le genre Capra : application à la conservation du bouquetin des Pyrénées (C. Pyrenaica)." Université Joseph Fourier (Grenoble ; 1971-2015), 1997. http://www.theses.fr/1997GRE10213.

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Le projet de reintroduction du bouquetin iberique (capra pyrenaica) sur le versant francais des pyrenees pose des questions de systematique. La systematique de l'espece capra pyrenaica et celle de l'ensemble du genre capra sont actuellement basees sur l'analyse des caracteres morphologiques. Au sein de l'espece iberique, quatre sous-especes dont une, c. P. Pyrenaica, typique des pyrenees sont definies. Ces systematiques sont cependant remises en question du fait de la plasticite des criteres morphologiques pris en compte. Afin de tester la position taxonomique du bouquetin iberique au sein du

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39

Ruck, Cassandra L. "Global Genetic Connectivity and Diversity in a Shark of High Conservation Concern, the Oceanic Whitetip, Carcharhinus longimanus." NSUWorks, 2016. http://nsuworks.nova.edu/occ_stuetd/412.

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The oceanic whitetip shark, Carcharhinus longimanus, is a circumtropical pelagic shark of high conservation concern (IUCN Red List: “Critically Endangered” in the Western North and Western Central Atlantic and “Vulnerable” globally). I present the first, population genetic assessment of the oceanic whitetip shark on a global scale, based on analysis of two mitochondrial genome regions (entire 1066-1067 bp control region and 784 bp partial ND4 gene), and nine nuclear microsatellite loci. No population structure was detected within the Western Atlantic. However, highly significant population str

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40

Kolseth, Anna-Karin. "Evolutionary Processes and Spatial Genetic Variation in Euphrasia stricta on the Baltic Island of Gotland." Doctoral thesis, Uppsala universitet, Institutionen för ekologi och evolution, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-8536.

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The identification of processes governing genetic structure at different spatial scales remains a major challenge in evolutionary biology and is of considerable applied interest in conservation biology. In Euphrasia stricta five varieties have been identified (brevipila, gotlandica, stricta, suecica and tenuis) based on differences in habitat, phenology and morphology. In this thesis, I examined genetic variation at AFLP and microsatellite marker loci in relation to variation in habitat and morphology within and among varieties of E. stricta on the island Gotland in the Baltic Sea. The results

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41

Wang, Zheng. "THE INFLUENCE OF PRODUCTION PRACTICES, TILLAGE, AND ENDOPHYTIC BACTERIA ON BELL PEPPER PRODUCTIVITY AND PHYSIOLOGY UNDER DIFFERENT IRRIGATION REGIMES." UKnowledge, 2015. http://uknowledge.uky.edu/pss_etds/55.

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To evaluate the strip tillage in organic bell pepper (Capsicum annuum L.) production as an integrated system for sustainable vegetable cropping two-years of field trials were conducted in 2011 and 2012. The field trials were conducted to determine the viability of strip tillage in conventional and organic bell pepper production systems by comparing plant growth, water status, and fruit yield to plastic mulch grown plants application under different irrigation regimes. The two-year field data demonstrated that organic pepper with strip tillage application was a viable combination that produced

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42

Masson, Séverine. "Continuité écologique et conservation de la diversité génétique et écotype d’un grand migrateur (Salmo trutta L.)." Thesis, Pau, 2016. http://www.theses.fr/2016PAUU3031/document.

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La dispersion, caractérisée par les mouvements d’individus dans l’espace et dans le temps, conduit à la production d’un flux de gènes et permet la connectivité des populations. Comprendre les facteurs qui façonnent les flux de gènes et la structuration des populations est d’une importance capitale pour améliorer les pratiques de gestion et de conservation des espèces. Celles caractérisées par une anadromie facultative, telles que la truite commune (Salmo trutta L.), sont des modèles de choix pour étudier le rôle de la diversité écotypique et comportementale, sous l’effet des activités anthropi

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43

Vangala, Pranitha. "Role of Cis-regulatory Elements in Transcriptional Regulation: From Evolution to 4D Interactions." eScholarship@UMMS, 2020. https://escholarship.umassmed.edu/gsbs_diss/1082.

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Transcriptional regulation is the principal mechanism in establishing cell-type specific gene activity by exploring an almost infinite space of different combinations of regulatory elements, transcription factors with high precision. Recent efforts have mapped thousands of candidate regulatory elements, of which a great portion is cell-type specific yet it is still unclear as to what fraction of these elements is functional, what genes these elements regulate, or how they are established in a cell-type specific manner. In this dissertation, I will discuss methods and approaches I developed to

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44

Almeida, Júnior Edivaldo Barbosa de. "Variabilidade genética quantitativa e molecular em uma coleção de germoplasma de Eugenia dysenterica DC. (Myrtaceae)." Universidade Federal de Goiás, 2012. http://repositorio.bc.ufg.br/tede/handle/tede/3532.

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Submitted by Erika Demachki (erikademachki@gmail.com) on 2014-11-04T19:45:06Z No. of bitstreams: 2 Dissertação - Edivaldo Barbosa de Almeida Júnior - 2012.pdf: 2762643 bytes, checksum: 0890998c45a55f15544debf5f715e8c4 (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5)<br>Approved for entry into archive by Erika Demachki (erikademachki@gmail.com) on 2014-11-04T19:46:09Z (GMT) No. of bitstreams: 2 Dissertação - Edivaldo Barbosa de Almeida Júnior - 2012.pdf: 2762643 bytes, checksum: 0890998c45a55f15544debf5f715e8c4 (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac

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Chang, Hsiaochi. "Assessing Gene Flow in Switchgrass (Panicum virgatum) and Miscanthus spp.:Implications for Bioenergy Crops." The Ohio State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=osu1437570556.

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46

Liu, Zhenhua. "Evolutionary mechanisms of plant adaptation illustrated by cytochrome P450 genes under purifying or relaxed selection." Thesis, Strasbourg, 2014. http://www.theses.fr/2014STRAJ008.

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Les plantes produisent une remarquable diversité de métabolites pour faire face aux contraintes d’un environnement en constante fluctuation. Cependant la manière dont les plantes ont atteint un tel degré de complexité métabolique et les forces responsables de cette diversité chimique reste largement incomprise. On considère généralement que le mécanisme de duplication des gènes contribue pour une grande part à l’évolution naturelle. En absence de transfert horizontal, les gènes d’évolution récente se cantonnent généralement chez quelques espèces et sont soumis à une évolution rapide, alors que

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Ndiade, Bourobou Dyana. "Dynamique spatiale et temporelle de la diversité génétique d’une espèce rare en Afrique Centrale : baillonella toxisperma Pierre (le Moabi)." Thesis, Montpellier 2, 2011. http://www.theses.fr/2011MON20045/document.

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Si les patrons d'expression de la diversité génétique des essences forestières à distribution grégaire des forêts tropicales humides ont fait l'objet de nombreuses études, les connaissances sur les essences forestières disséminées et représentées à très faible densité à l'hectare (dites rares) restent encore embryonnaires. Ces dernières suivent elles les mêmes patrons de distribution de la diversité génétique? Quels facteurs biotiques et abiotiques régissent l'organisation spatiale et l'évolution de la diversité génétique chez ce type d'espèce ? Afin d'améliorer les connaissances sur la biolog

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Tambarussi, Evandro Vagner. "Contemporary gene flow, mating system, and spatial genetic structure in a Jequitibá-rosa (Cariniana legalis Mart. Kuntze) fragmented population by microsatellite markers." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/11/11137/tde-24032014-101908/.

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Cariniana legalis Mart. O. Kuntze (Lecidiaceae) is the largest tree of the Atlantic Forest. To contribute to in situ and ex situ genetic conservation programs for the species, herein we investigate the genetic diversity, inbreeding, intrapopulation spatial genetic structure (SGS), mating system and contemporary pollen flow in three fragmented populations of this species. We found 65 adult trees in the Ibicatu population, 22 in MGI, and four in MGII. Seeds were hierarchically sampled among and within fruits directly from the canopy of 15 seed-trees in Ibicatu (n= 40), five seed-trees in MGI (n=

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Serrote, Caetano Miguel Lemos. "UM ESTUDO DE SIMULAÇÃO A PARTIR DE DADOS DE MARCADORES MICROSSATÉLITES EM FRAGMENTOS DE Luehea divaricata Mart. & Zucc. NO BIOMA PAMPA." Universidade Federal de Santa Maria, 2015. http://repositorio.ufsm.br/handle/1/8790.

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Conselho Nacional de Desenvolvimento Científico e Tecnológico<br>The objective was to use microsatellite DNA markers in simulations to study genetic, ecological and reproductive patterns that contributed to the genetic structure of five fragments of the forest tree species Luehea divaricata Mart. & Zucc, growing in the Pampa biome (Brazil). Various rates of selfing and migration were simulated. Selection criteria included observed and expected heterozygosity, whith values of 0,52 and 0,64, respectively (based on microsatellite markers). Reproductive mode was mixed, with a predominance of outcr

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Semizer, Cuming Devrim [Verfasser], Reiner [Akademischer Betreuer] Finkeldey, Oliver [Gutachter] Gailing, and Kurt [Gutachter] Weising. "Gene flow from planted common ash (Fraxinus excelsior L.) stands to old-growth forests – implications for conservation and use of genetic resources affected by ash dieback / Devrim Semizer Cuming ; Gutachter: Oliver Gailing, Kurt Weising ; Betreuer: Reiner Finkeldey." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2018. http://d-nb.info/1173975039/34.

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