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 10 of 10 for “"nrDNA"”.
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Molecular phylogeny of Melanospora and Diaporthales, and population genetics of dogwood anthracnose fungus
… small and large subunit RNA genes (SSU and LSU nrDNA) and deduced amino acid sequences of a subunit of RNA polymerase II gene (RPB2) indicated that five genera previously considered in Ceratostomataceae of Sordariales were related to Hypocreales. Melanospora (including the type) and a genus of …
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A Phylogenetic Study of the Arracacia Clade (Apiaceae)
… 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 contains some …
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Molecular systematics of the cashew family (Anacardiaceae)
… evolutionary relationships of the family using nrDNA and cpDNA sequences. The first part of the study investigated the evolutionary position of Anacardiaceae in relation to closely allied families within the order Sapindales. DNA sequence data for the chloroplast trnL intron and 3’ exon, and the …
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FILOGENESI DELLE SPECIE DI ALLIUM DELLA SEZ. CODONOPRASUM
… comparazione 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: …
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Incomplete concerted evolution in the non-hybrid diploid Clematic fremontii S. Watston (Rananculaceae)
… level in C. fremontii, sequences from this nrDNA gene region were generated directly from PCR products. The third part is the centerpiece of my research and includes a description of the heterozygosity observed among directly sequenced PCR products, the uncovering of pseudogenes, the myriad …
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A study of basidiomycetes isolated from coarse woody debris and contiguous soil horizons in a mixed deciduous-conifer forest in New Hampshire, United States of America
… by sequencing their nuclear ribosomal DNA (nrDNA) in the ITS1-5.8S-ITS2 region using the primers ITS1-4.</p>
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Identification of fungal species causing powdery mildew on cucurbits, determination of the genetic and pathogenic variations of the fungi and their sensitivity to major powdery mildew fungicides
… spacer (ITS) region of nuclear ribosomal DNA (nrDNA) for 119 isolates of powdery mildew causing fungi, only P. xanthii was identified. Distinct clustering of genetic variation based on geographical origins was found among the isolates. Also, significant variation (P < 0.0001) was found in …
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Dinamiche di speciazione e dispersione delle Orchidee mediterranee in condizioni di insularità
… cariologiche, citometriche e genetiche (cpDNA e nrDNA), nonché mediante tecniche di incrocio manuale interspecifico. La ricerca, condotta su numerose popolazioni di N. commutata e N. lactea ampiamente diffuse in Sicilia e di N. tridentata dai territori peninsulari italiani, fornisce prove …
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Characterization of Ulva (Ulvaceae, Chlorophyta) species cultured in commercial abalone farms in South Africa, and comparison with closely related wild species, using morpho-anatomical and molecular methods
… Transcribed Spacer of nuclear ribosomal DNA (ITS nrDNA) and the elongation factor tufA. The 12 cultured Ulva specimens belonged in the U. lacinulata clade with weak support value of 0.57 for PP in the rbcL tree, high support value of 0.86 for PP in the ITS tree and high support value of 92% and …
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Understanding angiosperm genome interactions and evolution: insights from sacred lotus (Nelumbo nucifera) and the carrot family (Apiaceae)
… as were previously available data from the nrDNA internal transcribed spacer (ITS) region. These molecular data were analyzed separately and in various combinations using maximum likelihood and Bayesian inference methods. While these data were unable to fully resolve higher-level …