نتایج جستجو برای: cladogram tree
تعداد نتایج: 170823 فیلتر نتایج به سال:
Dynamic Homology and Phylogenetic Systematics: A Unified Approach Using POY is a hybrid book: half algorithmic discussion and half reference manual for the cladogram search program POY. The first half of the book is dedicated to background and the algorithms that are used in POY. The second half details installation instructions for multiple platforms, suggested search techniques and over 250 c...
The phylogenetic relationships of the genera, subgenera and species-groups of the Vespinae are analysed using cladistic techniques. The results are used as the basis for a natural classification of these wasps. The cladogram for the four genera recognized is: Vespa + .cProvespa + (Dolichovespula + Vespula)). No subgenera are recognized; all those previously described are synonymized with the ap...
Several organizations have conventional and activity-based cost management (ABCM) systems or models to determine the costs of their products, services, projects and clients. Field observations have shown that the nature and the architecture of these systems or models vary greatly from one organization to another. The purpose of this paper is to develop a classification system for cost managemen...
OBJECTIVE DNA aberrations that cause colorectal cancer (CRC) occur in multiple steps that involve microsatellite instability (MSI) and chromosomal instability (CIN). Herein, we studied CRCs from AA patients for their CIN and MSI status. EXPERIMENTAL DESIGN Array CGH was performed on 30 AA colon tumors. The MSI status was established. The CGH data from AA were compared to published lists of 41...
The grass family (Poaceae) has been recognized as a unique lineage for more than 200 years, based initially on characters of inflorescence and spikelet morphology and corroborated by anatomical and other features in the latter half of the twentieth century. There have been a number of attempts to derive a phylogeny of sections of the family from structural (morphological and anatomical) charact...
Platyrrhine phylogeny has been investigated repeatedly with morphological characters and DNA nuclear gene sequences, with partially inconsistent results. Given the finding in the past decade that the mitochondrial genome is a potentially valuable source of phylogenetic information, we gathered DNA sequence data of a fragment of the 16S and the entire 12S mitochondrial genes. The objectives were...
BACKGROUND Linkage and association analysis based on haplotype transmission disequilibrium can be more informative than single marker analysis. Several works have been proposed in recent years to extend the transmission disequilibrium test (TDT) to haplotypes. Among them, a powerful approach called the evolutionary tree TDT (ET-TDT) incorporates information about the evolutionary relationship a...
Language classification differs from biological cladistics in that monogenesis cannot be assumed. Before a cladogram or family tree can be accepted, linguists must be convinced that the languages are related at all. Morpheme tables, or word lists, provide a good framework for investigating relatedness, but methodologies for quantifying and assessing the data statistically are still being develo...
PURPOSE To review, contrast, and compare current known tapetal mechanisms and review the implications for the evolution of the tapetum. METHODS Ocular specimens of representative fish in key piscine families, including Acipenseridae, Cyprinidae, Chacidae; the reptilian family Crocodylidae; the mammalian family Felidae; and the Lepidopteran family Sphingidae were reviewed and compared histolog...
Phylogenetics is a science of determining connections between groups of organisms in terms of ancestor/descendent relationships, usually expressed by phylogenetic trees, also called “trees of life”, cladograms, or dendograms. In parsimony approach to reconstruct the phylogenetic trees, the goal is to find the most parsimonious tree, i.e., the tree requiring the smallest number/score of evolutio...
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