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Showing 1 to 20 of 48 for “"Polyphyletic"”.
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Radiation in the genus Amazilia: A comparative approach to understanding the diversification of hummingbirds.
… with bill serrations, monophyletic or polyphyletic, were tested as well. My results show that hummingbirds with bill serrations are polyphyletic in origin. However, assuming a monophyletic origin for hummingbirds with bill serrations and placing genera according to traditional …
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Mollecular Phylogeny of tribolium (Danthoniodeae: Poaceae) and its taxonomic implications
… data. The analysis retrieved Karroochloa as polyphyletic. Monophyly of Schismus is strongly supported. The Australasian species form a monophyletic clade. Data support early divergence of the Merxmuellera species and Pseudopentameris macrantha.
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Molecular phylogeny of Tribolium (Danthonioideae: Poaceae) and its taxonomic implications
… data. The analysis retrieved Karroochloa as polyphyletic. Monophyly of Schismus is strongly supported. The Australasian species form a monophyletic clade. Data support early divergence of the Merxmuellera species and Pseudopentameris macrantha.
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On the phylogenetic relationship of South African species of Cladophora (Chlorophyta) based on the 26S (LSU) gene region
… and Clad. dalmatica; Cheatomorpha forming a polyphyletic group within Cladophora; and Clad. vagabunda and Clad. laetevirens grouping with the estuarine species. As no Clad. vagabunda or Clad. laetevirens are found along the coast of South Africa, the origins of its estuarine species still …
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Phylogenetic Analysis of the Cetonini of the New World (Coleoptera: Scarabaeidae: Cetoninae)
… group. Euphoria represents a poorly defined polyphyletic genus with a great degree of variability, with some species closer to European and African lineages rather than those within Euphoria.
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Phylogeny of parasitic wasps of Torymidae (Hymenoptera: Chalcidoidea) and evolution of their life-strategies
… However, family Torymidae was considered as polyphyletic group with the subfamily Megastigminae unrelated to the subfamily Toryminae (paper I). Monophyly of Torymidae was corroborated in another study (paper II) focused on molecular and morphological characters. We used a web-based, …
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Using Mitochondrial Cytochrome C Oxidase Subunit I Sequence To Resolve The Springsnail Species Complex: Pyrgulopsis Micrococcus
… suggesting the presence of multiple species of polyphyletic origin. At least five species were identified using mtCOI, and four populations were identified as at least evolutionary significant units.
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Palaeobiology of Silurian trilobites from North Greenland
… are analysed using cladistics, confirming the polyphyletic nature of effacement. Counts of trilobite sclerites from thirteen reef localities are analysed using cluster and correspondence analyses to identify trilobite associations, and taphonomic signatures. Seven trilobite associations are …
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Interrelationships Among Monorchiid Trematodes with Special Emphasis on Some Northwestern Atlantic Genera
… </em>Looss in Odhner, 1911<em> </em>is polyphyletic. Phylogenetic analysis of the 28S rDNA fragment and morphological analysis of <em>L. minutus</em> did not support a complex of cryptic species because all isolates of the 28S rDNA region were identical across locations and definitive …
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Hidden Diversity of Madagascan Freshwater Crabs (Brachyura: Potamoidea) Revealed by Morphological and Molecular Studies
… the genus <em>Foza</em>, which was found to be polyphyletic because its four assigned species were positioned on three separate lineages within the tree. Chapter 4 reconstructs ancestral character states by mapping morphological characters onto the molecular phylogeny of the Malagasy freshwater …
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Descrição de quatro novas espécies de Belostoma Latreille, 1807 e análise cladística do grupo B. plebejum sensu Nieser, 1975 (Insecta: Heteroptera: Belostomatidae)
… B. micantulum, which appeared as paraphyletic or polyphyletic m the analysis; the species should be redefined in order to correspond to a monophyletic assemblage.
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Taxonomia e anatomia de cinco espécies do gênero Maytenus (Celastroideae - Celastraceae) ocorrentes no Brasil
… by approximately 80 species. Maytenus is a polyphyletic genus and additional research is required to better understand its taxonomy. Maytenus ardisiaefolia Reiss., M. brasiliensis Mart., M. cestrifolia Reiss., M communis Reiss. and M. obtusifolia Mart. are difficult to identify because of …
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Dry and back again: characterization of desiccation-associated differentiation of leaf tissues in Craterostigma pumilum Hochst
Resurrection plants are a polyphyletic group of angiosperms which display true desiccation tolerance - the ability to survive near complete loss of cellular water for extended periods, while recovering metabolic competence upon watering. This is achieved by employing tailored protection behaviours …
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A Systematic Revision of Bakeridesia Hochr. (Malvaceae)
… provided strong evidence that Bakeridesia is polyphyletic if circumscribed to include the Brazilian subgenus Dipteron. Consequently, the clade comprising subg. Dipteron and several species previously included in Abutilon was removed from Bakeridesia and given the genus name Callianthe. Second, …
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Evolutionary relationships in Afro-Malagasy Schefflera (Araliaceae) based on nuclear and plastid markers
… Recent studies have shown that Schefflera is polyphyletic and represents no fewer than five distinct clades, each corresponding to a specific geographic region including Asia, continental Africa and Madagascar, Melanesia, the Neotropics, and a small clade distributed throughout several islands …
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The phylogenetics and evolution of Africa's larks (Alaudidae)
… recognised by more traditional taxonomies are polyphyletic, including Ammomanes, Eremalauda .and Certhilauda. Two other genera, Calandrella and Mirafra, are best treated as multiple genera (Chapter 2). The sampled Alaudidae can be divided into three main radiations, the ammomanid larks, …
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A Phylogenetic Study of the Arracacia Clade (Apiaceae)
… Prionosciadium, and Rhodosciadium) are polyphyletic. Given this evidence and historically that these taxa have been difficult to circumscribe, a thorough examination of the clade using molecular and morphological data is warranted. This dissertation seeks to address six major objectives: …
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A comparative study of the leaf epidermis of forty-two native California ferns
… the family Polypodiaceae (Wagner, 1959). This polyphyletic group (Eame, 1936) has been divided by several prominet workers into many families. Ching (1940) recognized thirty-two, Holttum (1947) five, and Copeland (1947) nine families. Munz and Keck (1959) divided the old famliy Polypodiaceae, …
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The biology and taxonomy of Mesozoic stromatoporoids
… 'sphinctozoans' and 'sclerosponges' are also polyphyletic groupings, representing grades, where some members of which are calcified demosponges. These groupings should no longer be considered in isolation, as this has previously obscured their true nature. The original mineralogy of late …
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Development and Characterization of Microsatellite Markers for the Grain Amaranths (Amaranthus spp. L.)
… major grain amaranth clades, suggesting the polyphyletic evolution of the three cultivated species from different A. hybridus ancestors. The microsatellite markers reported here will be useful for further evaluating the relationships among the grain amaranths and their relatives and are an …
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