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Showing 1 to 20 of 175 for “"parsimony"”.
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Geometric Possibility, Ideological Parsimony, and Monistic Substantivalism
Monistic substantivalists believe that material objects and regions of space-time are not two distinct kinds of fundamental of entities. For the monist, objects either are identical with regions or are somehow derivative from them. Dualistic substantivalists view regions and objects as distinct …
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Phylogeny reconstruction of the Schoeneae (Cyperaceae) with a focus on southern African genera
… were added to the matrix from Verboom (2006). Parsimony method was used for phylogeny reconstruction. Morphological characters were then optimised on the parsimony tree using both maximum likelihood and parsimony reconstruction. The Schoeneae is not monophyletic. Scleria may be included in the …
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Clarification of basal relationships in Rubus (Rosaceae) and the origin of Rubus chamaemorus
… gene Granule-Bound Starch Synthase (GBSSI-1). Parsimony analyses of trnS-trnG sequences indicate a basal trichotomy, while R.chamaemorus is strongly supported as sister to R. pedatus. A combined cpDNA (trnS-trnG and three other regions) parsimony analysis indicates that subg. Anoplobatus is …
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Evolutionary relationships of the discoglossoid frogs - osteological evidence
… of cladograms generated from compatibility and parsimony analyses of the data set. In an introductory section, modern approaches to systematic analysis and classification are reviewed and a justification for the chosen method is provided. The concepts of natural taxa and natural classifications …
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Towards characterizing the solution space of the 1-Dollo Phylogeny problem
… tree. One representative model is the k-Dollo parsimony, where all observed mutations mutate from a single normal cell and each character of a cell is gained at most once and lost at most k times. We examine the 1-Dollo Phylogeny problem, does a 1-Dollo phylogeny, a tree that follows the …
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Phylogenetic Study of Apocynaceae Juss. And Aspidosperma Mart. And Zucc
… were compared to assess possible hybridization. Parsimony analysis of all the data combined did not support the subgeneric concept proposed by some authors. These results did however support the maintenance of sectional categories however, with slight modifications. Section Myristicifolia was …
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Seasonal and diel periodicity of Cerambycid beetles in east-central Illinois: the potential for cross attraction
There appears to be considerable parsimony within the cerambycid beetle subfamily Cerambycinae in relation to pheromone biosynthesis and use. Aggregation pheromones, produced by the males, usually conform to a structural motif of a six-carbon chain with hydroxyl or carbonyl groups at C2 and C3, and …
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Análise filogenética dos Mesoeucrocodylia basais da América do Sul e a evolução do Gondwana (Archosauria: Crocodyliformes)
… areas. An heuristic tree search under a maximum parsimony phylogenetic analysis revealed a single fully resolved relationship hypothesis to those taxa stressing the following conclusions. The Notosuchia forms a monophyletic group that includes a few monophyletic groups, highly supported under …
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Parsimonious Service Replication for Tolerating Malicious Attacks in Asynchronous Environments
… that leverage perceived normal conditions for parsimony and do not compromise correctness even when such perceptions are inaccurate. Parsimony is to be as frugal as possible for a given metric of interest. We apply this methodology to obtain parsimonious protocols that achieve efficiency in …
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Genetic variation in the European rabbit and rabbit flea in the British Isles
… from 0 to 0.04 between populations. However parsimony analysis revealed individuals from the same population grouping together, indicating subdivision within the rabbit population as a whole.<br/><br/>RAPD analysis of 4 flea populations gave 4 polymorphic fragments from 19 discovered. This …
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Phylogeny, Classification, and Biogeography of the Cycloteline Therevinae (Diptera: Therevidae)
… characters. Cladistic analysis using parsimony on the 17 ingroup and 4 outgroup taxa provides a well supported hypothesis of relationships among taxa within the Cyclotelini, tribe nov. The Cyclotelini is a monophyletic assemblage of mostly New World genera, including Anolinga, gen. …
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Population genetics of the endemic red-chested sea cucumber, Hemiocnus insolens, along the southern coastline of Africa
… assessing the metagenomics of selected samples. Parsimony-based tree fitting was generated for 16S rRNA and COI which suggested that some differentiation between white samples, and red and yellow samples (BP = 100) (Figure 2.1, Figure 2.2). According to population genetics and phylogeography, …
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Phylogenetic studies in the genus Jamesbrittenia tribe Manuleae, family Scrophulariaceae
… regions of southern Africa. Applying both parsimony and Bayesian inference to combined molecular and morphological data sets, a phylogenetic hypothesis which is robust at the deeper nodes, was produced. This supports the monophyly of Jamesbrittenia, and also indicates the early divergence …
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Sooty blotch and flyspeck disease of apple: expansion of the fungal complex in Turkey and evaluation of a warning system for the Upper Midwest
… compared to previously identified fungi using parsimony analysis. Twelve species were delineated based on parsimony analysis of ITS sequences and morphology. A newly discovered and described species from the survey was Scleroramularia abundans; newly discovered putative species included …
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Using a complex model of sequence evolution to evaluate and improve phylogenetic methods
… On larger trees only distance methods and parsimony techniques were studied. In virtually all cases parsimony outperformed distance-based approaches. The use of simple distance corrections improved performance for four taxon trees and ultrametric sixteen taxon trees but decreased the …
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A phylogenetic analysis of the Accipitridae (class Aves).
… have been examined previously using phenetic and parsimony approaches and a variety of data sets. These studies have resulted in conflicting phylogenies, presumably due to the high level of homoplasy, perhaps, the result of convergence on diet. To develop a firm understanding of the relationships …
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Exploring the Evolution and Taxonomy of Evaniidae (Hymenoptera), a Charismatic and Enigmatic Family of Insects
… are estimated using three methods: unweighted parsimony, six-parameter parsimony, and mixed model Bayesian analysis. Results indicate that most genera are monophyletic except for the clades represented by Zeuxevania + Parevania + Papatuka and Acanthinevania + Szepligetella + Evaniella, which …
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Delimitating Species Boundaries within the Liomys Pictus- Spectabilis Complex (Rodentia: Heteromyidae)
… range of L. pictus and L. spectabilis. Maximum parsimony, maximum likelihood, and Bayesian analyses suggest that there are six species within the L. pictus complex using the Weins-Penkrot approach and Templeton's cohesion test for delimitating species whereas previously only two have been …
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