Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 30 for “"cpDNA"”.
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DNA systematic studies in the genus Bromus L. (Poaceae)
… polyploid species. Variation in chloroplast DNA (cpDNA) fragment pattern was examined, initially, in 15 species of subgenera Festucaria and Ceratochloa. Subsequently, cpDNA restriction site variation was examined in 38 species, using 10 enzymes and filter hybridization experiments. Variation in …
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Restriction fragment length polymorphism analysis of chloroplast DNA, mitochondrial DNA, and ribosomal DNA in turfgrasses
… length polymorphisms (RFLPs) of chloroplast DNA (cpDNA), mitochondrial DNA (mtDNA), and ribosomal DNA (rDNA), were used to estimate and compare the extent of diversity among the organellar and nuclear genomes, and to infer species relationships. Eight cultivated turfgrass species and subspecies …
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Testing the utility of the consortium for the barcoding of life's two 'agreed upon' plant DNA barcodes, matK and rbcL
… portions of two coding chloroplast gene regions (cpDNA), matK and rbcL, would serve as the DNA barcode for all land plants. This recommendation was accompanied by CBOL‘s call for continued testing of these two regions, along with other potential gene regions that may prove to be more effective …
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Molecular genetics of triazine resistance in Senecio vulgaris L
… physical characteristics of chloroplast DNA (cpDNA) and its inheritance were also studied. Resistance of groundsel seedlings to atrazine; [$^{14}$C] atrazine-binding; [$^{14}$C] azido-atrazine labelling and cpDNA restriction pattern were different in resistant compared to susceptible biotypes …
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A Phylogenetic Study of the Arracacia Clade (Apiaceae)
… genera; 2) examine the comparative utility of cpDNA and nrDNA loci at resolving phylogenetic relationships in the Arracacia clade; 3) delimit major clades within the Arracacia clade; 4) conduct a cladistic study of the morphological characters of the “True” Rhodosciadium group, a clade that …
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Nested clade analysis of geographic structure in the morphologically variable Themeda triandra in South Africa
… trnF - trnC and psbD - trnS gene regions of the cpDNA were used to find 12 haplotypes found in 11 populations of T. triandra that encompass the species large distributional range. A haplotype tree was constructed that showed the relationship of the 11 haplotypes (haplotype_H12 was excluded as it …
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Phylogeographic patterns in three South African forest mosses
… transcribed spacer (ITS) nuclear rDNA and trnL-F cpDNA were employed.
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Genetic variability in Douglas-fir based on molecular genetic markers and morphological traits
… length polymorphisms (RFLP) for chloroplast (cpDNA) and mitochondrial (mtDNA) DNA, and random amplified DNA fingerprinting (RADF) markers for the nuclear genome. Genetic diversity and the degree of population differentiation for cpDNA and mtDNA were estimated at 3-hierarchical levels. Among …
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FILOGENESI DELLE SPECIE DI ALLIUM DELLA SEZ. CODONOPRASUM
… di dati morfologici e molecolari (nrDNA e cpDNA). I principali dati morfologici sono stati analizzati tramite il software NTSYSpc usando l analisi UPGMA. Il lavoro è stato condotto analizzando 3 differenti markers genetici che normalmente vengono usati nelle analisi filogenetiche: ITS, …
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Chloroplast DNA phylogenetics of the North American chestnuts and chinquapins (Castanea Mill., Fagaceae)
… and chloroplast capture. Surprisingly, the cpDNA phylogeny did not agree with previous taxonomic treatments. The inability to distinguish between deep coalescence and interspecific hybridization as the causes of haplotype sharing makes phylogenetic reconstruction of the North American …
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Genetic and Morphological Analyses of White Spruce in North America
… during the last Quaternary glaciation using cpDNA markers, (2) provided evidence for multiple refugia in Alaska and uncovered the roles of gene flow and drift in structuring the patterns we see today and (3) teased apart the controlling mechanisms behind morphological expression (genetics, …
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Demographic and Genetic Consequences of Small Population Size in Remnant Populations of Arabis georgiana Harper (Georgia Rockcress)
… of A. georgiana, potential variation in ploidy, cpDNA haplotypes and microsatellite markers was also evaluated. Census data revealed no species-wide pattern for population growth or decline compared to data collected in 2005. The rbcL barcode generated for this species were confirmed as a unique …
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Filogeografia, diferenciação geográfica e caracterização citogenética de populações naturais de Psychotria ipecacuanha das florestas Atlântica e Amazônica
… que incluiu filogeografia molecular basead em cpDNA, estrutura de população via ISSR, e citogenética para caracterizar populações naturais de poaia das florestas Atlântica e Amazônica do Brasil. As análises permitiram elaborar e avaliar hipóteses dos fatores históricos e ecológicos que moldaram …
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Análise da hipótese da vicariância entre Dalbergia nigra Allem. ex Benth. e Dalbergia miscolobium Benth. (Fabaceae) com base em DNA cloroplastídico
… com primers específicos trnL-c e trnL-d (cpDNA). As seqüências de DNA alinhadas produziram uma matriz com 530 caracteres. Excluindo os autopomórficos e os invariáveis, foram obtidos 75 sítios variáveis dos quais 37 foram informativos para análise de parcimônia. De modo geral, as análises …
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Evolutionary dynamics of mating systems in populations of North American Arabidopsis lyrata
… from a single event I used chloroplast DNA (cpDNA) markers to reveal deep phylogeny and microsatellite markers to determine recent population genetic patterns. The results showed a loss of SI in populations from all three detected cpDNA haplotypes. Microsatellite data showed that …
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Seasonal rainfall regime modulates genetic variation in the moss Pseudocrossidium crinitum
… of the Cape Floristic Region. An analysis of cpDNA and nDNA sequence variation for 65 populations of the moss Pseudocrossidium crinitum across South Africa revealed the presence of a phylogeographic break corresponding to the split between the winter-rainfall zone (WRZ) and the all-year-(ARZ) …
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A Systematic Review of the Viola palmata Species Complex in the Gulf Coastal Plain and Southern Appalachians
… and cleistogamous seeds. Multiple nDNA and cpDNA regions were amplified, sequenced, and analyzed for phylogenetic analysis; four microsatellite loci were amplified, run on a gel for detection and sizing of alleles, and analyzed for population and/or geographic patterns. At each population, …
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Genetic variation among inland and coastal populations of Distichlis spicata sensu lato (poaceae) in the western United States
… for chromosome number, molecular sequences in cpDNA and nuclear DNA, DNA C-value, and flowering time. One lineage has a somatic chromosome number of 2n = 40 and encompasses plants from the West Coast and several inland locations in Nevada, Utah, and southern New Mexico. The other lineage has a …
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The phylogeography of North American chestnuts and chinquapins (Castanea Mill., Fagaceae)
… American Castanea, 2) explore the extent of cpDNA haplotype sharing among these taxa, and 3) map haplotype distribution in relation to morphotaxa. Finally, I wanted to use the information obtained from these analyses to gain insight into southeastern populations,where intermediate …
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Lack of polymorphism suggests a recent bottleneck of Aloidendron pillansii: Exploration into the population of Aloidendron pillansii from phylogeographical analysis of molecular data
… this hypothesis by linking the molecular data (cpDNA and nDNA) of 84 individuals from three main populations with phylogeographical techniques. Based on the combination of percentage of mutations percentage per million years range and the chloroplast sequences, it has been estimated that the …
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