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.
Results
Showing 1 to 20 of 33 for “"UPGMA"”.
-
Comparative analysis of aquatic insect, amphipod, and isopod community composition along environmental gradients in rheocrene spring systems of Missouri
… springs. Sorenson's similarity coefficient and UPGMA cluster analysis showed that differences between high discharge spring systems may be related to the presence of trout and trout fisherman. Renkonen's similarity coefficient and UPGMA cluster analysis showed that differences between low to …
-
Categorização de dados quantitativos para estudos de diversidade genética
… mais próximo e pela ligação média entre grupos (UPGMA). A eficiência destes foi verificada através das estatísticas de eficiência coeficiente de correlação cofenética, estresse e grau de distorção entre as matrizes fenéticas e cofenéticas. Os resultados mostraram que o método de agrupamento UPGMA …
-
"Isozyme variation in ""helminthosporium-type"" species pathogenic on maize"
… asexually propagated clonal groups. Use of the UPGMA method to calculate overall similarity between isolates found that isolates of race 1 were more similar to race 2 than isolates of race 3.
-
Amplified fragment length polymorphism (AFLP) analysis of genetic variability in Phalaenopsis
… on Dice coefficient. The dendrogram derived by UPGMA analysis clustered into two main groups. A significant linear relationship (r² = 0.524, P < 0.0001) was observed between known pedigrees and AFLP-derived genetic similarity for 136 pairwise comparisons of Phalaenopsis species and hybrids. The …
-
Development and evaluation of methodologies for the classification of ecological communities.
… hted-Pair-Group-Method-using-Arithmetic-Averages (UPGMA). The SOM method was similar to the K-means in performance, and it was the best clustering method overall because of its additional and exceptional visualization feature. Although the UPGMA method also has visualization feature and worked well …
-
Using the psba Gene as a Measure in Determining the Phylogenetic Relationship among Bryophytes.
… 24 sequences were obtained from GenBank. The UPGMA, Neighbor-Joining, and Maximum Parsimony trees generated by molecular evolutionary genetic analysis (MEGA) supported the liverworts-basal topology.</p>
-
FILOGENESI DELLE SPECIE DI ALLIUM DELLA SEZ. CODONOPRASUM
… 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, sbA-trnH e rbcL. Sono stati analizzati 95 campioni,provenienti da diverse stazioni dell area mediterranea, …
-
Evaluation of Genetic Diversity and Stability of Colocasia Cultivars Using ISSR
… pair group method with arithmetic mean (UPGMA) and principal coordinate analysis (PCO) were performed to examine genetic relationship that can explain a need for the new classification <em>Colocasia gigantea</em> and recent movement of re-classifying <em>Colocasia antiquorum</em>. Average …
-
Relación genética de seis especies de teocintles (Zea spp) mesoamericanos empleando descriptores morfológicos en el CEO, Posoltega, Chinandega, 2009
… El análisis de conglomerado mediante el método UPGMA y distancia euclidea agrupó las seis especies estudiadas en cuatro grupos las especies Zea perennis(a) y Zea huehuetenangensis se separan de los demás teocintle. Al comparar característica morfológicas las especies de México se diferencian de …
-
Espaço ecomorfológico da fauna de quirópteros da região do Alto Tocantins, GO: uma perspectiva através da análise da morfologia alar
… were summarized in dendrograms performed by the UPGMA (unweighted pair-group method using arithmetic averages) clustering method. The distribution of the centroids of the species on the Factor Analysis axis are rigth-skewed, with the majority of taxa located toward center tand suggesting that the …
-
Seleção de genótipos de eucalipto para produção de carvão vegetal utilizando análise multivariada e redes neurais
… métodos de Tocher, ligação média entre grupos (UPGMA) e rede neural de Kohonen. Observou-se que a metodologia de pré- classificação foi eficiente, permitindo a escolha de 16 genótipos com valores desejáveis para as quatro características utilizadas na pré-seleção. De modo geral, as propriedades …
-
Capacidade combinatória e diversidade genética em sorgo granífero
… diversidade genética realizadas foram o método UPGMA e agrupamento de Tocher modificado. A análise dialélica apresentou efeitos significativos para híbridos, evidenciando a existência de variabilidade genética entre os genótipos avaliados. As estimativas de CGC das linhagens R e A foram …
-
Evolutionary biology of the Armillaria mellea species complex
… species, The NPH data was summarized with UPGMA clustering analysis to give four main clustering groups, two were homogeneous and two were heterogeneous, The first included A. tabescens; the second included A. mellea; the third included A. calvescens, A. gallica, A. sinapina, NABS IX, and …
-
Analysis of Serology and Phylogeny in Spiroplasma Classification
… partial 16S rDNA and concatenated sequences. UPGMA trees were constructed based on the serological data. Comparative analysis of the serological and phylogenetic trees indicated that they lacked overall congruency but most tight phylogenetic clusters were conserved. When serology was used in …
-
Assessment of Chenopodium quinoa Willd. Genetic Diversity in the USDA and CIP-FAO Collections Using SSR?S and SNP?S
… least one locus for 51% of the accessions. Both UPGMA and PCA analyses partitioned the quinoa accessions into two main clusters. The first major cluster consisted of accessions from the Andean highlands of Peru, Bolivia, Ecuador, Argentina, and extreme northeastern Chile. The other main cluster …
-
Nymphaea odorata (Water-lily, Nymphaeaceae): Analyses of molecular and morphological studies
… variable within a species and were used in UPGMA, PCOA and MST analysis, which resulted in separation between the subspecies. Both univariate and multivariate analyses were performed on quantitative and qualitative morphological characters. An analysis of variance resulted in six …
-
Caracterización molecular de clones de Gmelina arborea mediante el uso de marcadores moleculares AFLP (Amplified Fragment Length Polymorphism)
… y agrupando las muestras utilizando el algoritmo UPGMA. Los resultaos obtenidos en el análisis de similitud mostraron una amplia diversidad entre las dos colección y baja al interior de cada una de ellas, permitiendo sugerir los posibles cruces en la siguiente fase del plan de mejoramiento de la …
-
Aronia mitschurinii: Solving a Horticultural Enigma
… pair group method with arithmetic mean (UPGMA) identified <em>A. mitschurinii </em>as distinct from wild <em>Aronia</em> spp., placing it on a branch with ×<em>Sorbaronia fallax </em>and ×<em>Sorbaronia </em>‘Ivan’s Beauty’. Non-metric multidimensional scaling (nMDS) clustered <em>A. …
-
Helminth, protozoan and viral infections of the European eel, Anguilla anguilla
… = 0.037). Furtheranalyses (STRUCTURE, BAPS and UPGMA phylogeny) showed the existence of two distinct A.crassus populations; one originating from the river Piddle and the other represented by theremaining sites.To examine eel for infection with the protozoan haemoflagellate Trypanosomagranulosum, …
-
Inheritance of Dorsal Fin Coloration in the Metriaclima Species Complex (Teleostei: Cichlidae) of Lake Malawi
… was less than predicted under a null model. UPGMA clustering resulted in M. thapsinogen and M. emmiltos grouping closer together than geographically proximate M. zebra. These data suggest the genetic basis for red dorsal fin coloration is allelic between M. thapsinogen and M. emmiltos, and …
Page 1 of 2