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Showing 1 to 20 of 154 for “"Morphological Characters"”.
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Phylogenetic Analysis of the Australian Genus <em>Pseudophryne</em> (Myobatrachidae) using Morphological Characters.
… <em>Metacrinia</em> are resolved with the use of morphological characters and comparison with representatives species of <em>Crinia</em>, <em>Uperoleia</em>, and <em>Taudactylus</em> as defined out-groups. Characters describing musculature are not sufficient to resolve the relationships, but do …
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Comparative analyses of nuclear ribosomal RNA gene sequences and morphological characters of selected taxa of Loculoascomycetes: Phylogenetic implications
… taxonomic levels using both molecular and morphological approaches.
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Caracterização taxonômica e biologia de uma espécie de Kempnyia Klapálek (Plecoptera, Perlidae) em um riacho da Floresta da Tijuca, Rio de Janeiro (RJ)
… from the other species of the genus by distinct morphological characters. ln the nymphs the absence of the intersegmental gills III is remarkable, not occurring in any other species of the genus. The comparison between the nymphs of K. tijucana and others from the same genus provided thirteen …
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Contribution to the systematics of the genus Aphis (Hemiptera:Aphididae)
… were constructed with 73 taxa and forty-one morphological characters with their character states of alate and apterae viviparous females. I identified four main groups: gossypii, asclepiadis, middletonii and fabae. Topologies of analyses performed using bootstrap Maximum Parsimony and MrBayes …
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A Phylogenetic Study of Cymopterus and Related Genera (Apiaceae)
… evolutionary patterns of fruit and other characters and to evaluate their utility in circumscribing genera and major clades, 54 morphological characters were analyzed phylogenetically. Additionally, multivariate analyses were undertaken to examine patterns of morphological variation in …
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The Development of the Embryo Sac in Ranunculus Glaberrimus Hook
A comparative study of embryological and morphological characters of the ovule in the family Ranunculaceae indicates that considerable variation exists within this family.
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Revisão taxonômica e análise filogenética das espécies do gênero neotropical Balacha Melichar (Insecta, Hemiptera, Cicadellidae, Cicadellinae)
… In the redescriptions are included new morphological characters, specially those of the fmale genitalia. The interai abdominal stemite VII was observed fr the frst time in B. distincta, B. rubripennis and Pawiloma ancora Young. A neotype fr B. melanocephala is elected, considering the …
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A taxonomic study of Chrysanthemoides Tourn. ex Medik. (Compositae)
A phenetic analysis based on 33 morphological characters of Chrysanrhemoides Tourn. ex Medik. revealed 12 major clusters of• operational taxonomic units (OTU's). A further four taxa were clustered within c. monilifera (L.) T. Norl. ssp. pisifera (L.) T. Norl. ,• var. pisifera form 1, var. pisifera …
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Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda)
… more comprehensive study of their molecular and morphological characters is needed. Phylogenetic trees can be used as maps to trace the evolution of characters in a group. Using the estimated tree for Polydesmida, I mapped morphological and molecular characters to understand their evolution. …
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Evolution in the genus Arum: a comparative analysis of morpohological and genetic variation.
Testing the correlation of morphological and genetic marker variation enables the investigation of evolutionary processes. Knowledge of evolutionary processes can be used to identify those morphological characters that could be used to produce evolutionary meaningful taxonomies. This thesis aims to …
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Phylogeny and character evolution in the Lampranthus-group (Aizoaceae-Ruschioideae)
… the large genus Lampranthus, was studied using morphological characters and DNA sequence from the trnL - trnF region of the chloroplast genome, the nuclear ribsomal internal transcribed space (ITS) region and the 5S non-transcribed spacer. The phylogenies 59 species in the 29 genera of succulent …
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Understanding the weedy Chenopodium complex in the north central states
… 12 Chenopodium species were investigated using morphological DNA content values and sequence data. With the exception of morphological characters such as pericarp covering the seeds, calyx shape (keeled or not) and DNA content of the species, most of the morphological characters were not …
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Hybridization Between the Watersnakes <i>Nerodia sipedon</i> and <i>Nerodia fasciata,</i> in the Carolinas: A Morphological and Molecular Approach
<p>A few traditionally applied diagnostic characters of color pattern were compared with an additional set of morphological and genetic characters to evaluate differences between <em>Nerodia sipedon</em> and <em>N. fasciata</em> and to study the dynamics across their hybrid zone in the Carolinas. …
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Phylogenetic revision of the genus Cherokia (Chamberlin, 1949) (Polydesmida: Xystodesmidae)
… made by Richard Hoffman in 1960. Here, I used morphological and molecular data sets to review the genus, and evaluate whether it is a monophyletic group. I included material from literature records and three natural history collections. Newly collected samples were obtained through a citizen …
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Systematics of the Gracilariaceae (Rhodophyta) of southern Africa
… many members of this family is a concern. Gross morphological characters have been the main means of identification and incorrect applications have led to a number of misidentifications.
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Phylogeny, Classification, and Biogeography of the Cycloteline Therevinae (Diptera: Therevidae)
… Therevidae) are compared using 65 adult morphological 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 …
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