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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 31 for “"Molecular Systematics"”.
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Molecular systematics of Plasmodiophora brassicae
The molecular systematics of Plasmodiophora brassicae Woronin, the causal agent of clubroot in crucifers were investigated using the small subunit ribosomal RNA gene sequence. Plasmodiophoromycetes, a group of obligate parasites of various higher plants, algae and Oomycetes have been classified in …
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The molecular systematics of Xenarthra and Perissodactyla.
The molecular systematics of Xenarthra and Perissodactyla.
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Molecular systematics of the cashew family (Anacardiaceae)
Anacardiaceae Lindl., the cashew family, is an economically important, primarily pantropically distributed family of 82 genera and over 700 species. This family is well known for its cultivated edible fruits and seeds (mangos, pistachios, and cashews), dermatitis causing taxa (e.g., Comocladia, …
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The molecular systematics of Southern African Testudinidae
… with 13 species. This is the first study to use molecular techniques to investigate the evolutionary history of this group, which displays an unusually high level of speciation on the continent. Four hundred and fifty base pairs of mtDNA cytochrome b sequence were obtained, using direct PCR-based …
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Comparative Molecular Systematics of Select Amphibians and Reptiles
The use of molecular techniques for determining phylogenetic relationships has become widespread in the last decade. This study examines the reliability of some of these molecular techniques, particularly micro-complement fixation (MC'F), in select amphibians and reptiles.
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Molecular systematics of the leafy liverwort family Lophoziaceae cavers
Many recent workers have included it in Jungermanniaceae, and even in its strictest sense, internal classification has varied widely among different treatments. Here an analysis of the variation in DNA sequences of the chloroplast rps4 gene and the trnG intron provides resolution of phylogenetic …
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Molecular Systematics & Evolution of the CTENOSAURA HEMILOPHA Complex (SQUAMATA: IGUANIDAE)
<p>Molecular variation within <em>Ctenosaura hemilopha</em> and among other <em>Ctenosaura</em> species are used to identify species boundaries, assess suitable systematic characters, identify evolutionary patterns within <em>C. hemilopha</em> mitochondrial DNA sequences and reconstruct species and …
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Molecular systematics and conservation genetics of gliding petaurids (Marsupialia: petauridae).
… or at a state level. This study applied molecular approaches to investigate several questions involving Petaurus species which may provide valuable insights for their conservation and management of species. The objectives of this study included an examination of phylogenetic and …
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Molecular systematics and phylogeography of the Helmeted Guineafowl (Numida meleagris)
Includes bibliographical references (leaves 61-67).
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Phylogeography of Darlingtonea Kentuckensis and Molecular Systematics of Kentucky Cave Trechines
… from COI haplotypes. A hierarchical analysis of molecular variance found low nucleotide diversity within populations and statistically significant variation among geographically-defined groups tested based on two a priori hypotheses of structure. Population structure among five distinct genetic …
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Molecular systematics and biogeography of the Holarctic smelt family Osmeridae (Pisces)
… was to address fundamental questions in the systematics and biogeography of a family of Holarctic fish (Osmeridae) and place these results in a broad comparative biogeographic framework. With eight conflicting morphological hypotheses, the northern hemisphere smelts have long been the …
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Molecular Systematics of <i>Isoëtes</i> (Isoëtaceae) in Eastern North America
<p><em>Isoëtes</em> (Isoëtaceae, Isoetales, Lycopodiophyta) is a cosmopolitan genus of aquatic lycophytes, occurring on every continent except Antarctica. Of approximately 200 total taxa, about half are in a clade of species mostly occurring in North and South America. Eastern North America …
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The Molecular Systematics of the Side-blotched Lizards (IGUANIA: PHRYNOSOMATIDAE: UTA)
… in the Gulf of California and Pacific Ocean. The molecular evolution of the side-blotched lizards is analyzed using 1132 base pairs of mitochondrial DNA sequence from the cytochrome b and cytochrome oxidase III genes. Samples come from 98 'individuals from 50 islands in the Gulf of California and …
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Molecular systematics and population genetics of Hypoxylon truncatum sensu Miller using RAPD
Molecular systematics and population genetics of Hypoxylon truncatum sensu Miller were investigated, using random amplified polymorphic DNA markers (RAPD). A simple, rapid method was developed to isolate DNA from fungal tissue. This method described involves treating ground mycelium with a lysis …
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Molecular Systematics of the Entomopathogenic Bacteria Bacillus popilliae, Bacillus lentimorbus, and Bacillus sphaericus
… they have not previously been examined at the molecular level. Thirty-four isolates of these bacteria were examined for DNA similarity. Three distinct but related similarity groups were identified; the first contained strains of B. popilliae, the second contained strains of B. lentimorbus, and …
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Habitat modification and gene flow in Saimiri oerstedii: Landscape genetics, intraspecific molecular systematics, and conservation
… the Central Pacific. I analyzed the data using molecular systematics, population genetics, and landscape genetic techniques. In this dissertation, first I explore whether molecular genetic support exists for the subspecies distinction between S. o. citrinellus and S. o. oerstedii. Second, I …
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Molecular systematics, biogeography and dating of the tribe Haemantheae (Amaryllidaceae) and the phylogeography of Clivia
The African tribe Haemantheae, belonging to the monocotyledonous family Amaryllidaceae, comprises six genera (Gethyllis, Apodolirion, Haemanthus, Scadoxus, Clivia and Cryptostephanus) with ca. 90 species. A phylogenetic hypothesis for the Haemantheae is presented as a basis for an enquiry into the …
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THE WORLD ACCORDING TO GARS: THE MOLECULAR SYSTEMATICS AND COMPARATIVE PHYLOGEOGRAPHY OF LIVING GARS (ACTINOPTERYGII: LEPISOSTEIDAE)
… tropicus<italic> sister to the pair. My molecular phylogenies largely agree with recent morphologically-based phylogenies aside from the positions of <italic>L. ossues<italic> and <italic>L. platostomus<italic>. Using dates associated with the best fossil data available (244 Ma minimal …
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The molecular systematics of Ulva Linnaeus and Enteromorpha Link (Ulvales, Chlorophyta) from the South Western Cape, South Africa
… stemming from a lack of diagnostic, non-molecular systematic characters. This study addresses the following questions: i) Do the two genera represent distinct entitiesj ii) What are the relationships among local putative species; iii) Do the recognized species represent monophyletic …
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