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・ Patrizio Hofer
・ Patrizio Oliva
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Patrocladogram
・ Patrocles
・ Patrocles (geographer)
・ Patroclus
・ Patroclus (disambiguation)
・ Patroclus Hill
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・ Patroclus of Macedon
・ Patroclus of Troyes
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・ Patrocínio Paulista
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・ Patroklos Karantinos


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Patrocladogram : ウィキペディア英語版
Patrocladogram
A patrocladogram is a cladistic branching pattern that has been precisely modified by use of patristic distances (i.e, divergences between lineages); a type of phylogram. The patristic distance is defined as, "the number of apomorphic step changes separating two taxa on a cladogram," and is used exclusively to determine the amount of divergence of a characteristic from a common ancestor. This means that cladistic and patristic distances are combined to construct a new tree using various phenetic algorithms. The purpose of the patrocladogram in biological classification is to form a hypothesis about which evolutionary processes are actually involved before making a taxonomic decision. Patrocladograms are based on biostatistics that include but are not limited to: parsimony, distance matrix, likelihood methods, and Bayesian probability. Some examples of genomically related data that can be used as inputs for these methods are: molecular sequences, whole genome sequences, gene frequencies, restriction sites, distance matrices, unique characters, mutations such as SNPs, and mitochondrial genome data.
==Cautions with patrocladogram usage==

Patrocladograms are graphs that assert hypotheses of similarity whereas phylogenetic trees are graphs that assert hypotheses of common ancestry. When a patrocladogram does not logically match with a comparable phylogenetic tree hypothesis it should not be used to define monophyletic groups. The usage of patrocladograms can skew interpretations of novel evolution or depict homologous traits as homoplastic.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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