numerical taxonomy


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Related to numerical taxonomy: cytotaxonomy, chemotaxonomy

taxonomy

 [tak-son´ah-me]
the orderly classification of organisms or lists into appropriate categories (taxa), with application of suitable and correct names. adj., adj taxonom´ic.
numerical taxonomy a method of classifying organisms solely on the basis of the number of shared phenotypic characters, each character usually being given equal weight; used primarily in bacteriology.

numerical taxonomy

n.
The branch of taxonomy that uses mathematical methods to evaluate observable differences and similarities between taxonomic groups.

numerical taxonomy

the study of the relationships between organisms by means of determining the number of characteristics they have in common. see TAXONOMY, CLASSIFICATION. See also CHARACTER INDEX.
References in periodicals archive ?
The numerical taxonomy of the two test character classes shows fairly consistent results generating in the C.
annulus numerical taxonomy based on morphological test character with binary data type or two states obtained two phenotypic taxa at taxonomic similiarity phenon level of 94% and ordinal obtained three taxa phenotype at taxonomic correlation level of 0,970.
The findings of the research have been practiced by using the Numerical Taxonomy Model in six above-mentioned stages (figure 1) as follows in detail:
The aim of our study was to select differential biochemical tests for a rapid identification of isolates after the identification by using the sequencing of 16S rRNA gene technique and numerical taxonomy analysis.
NTSYS-pc Numerical Taxonomy and Multivariate Analysis System Version 2.01.
For phena that could not be identified by numerical taxonomy methods, probabilistic identification was performed with the "Probabilistic identification of bacteria" program, version 1.10 (Bryant 1995).
Abbreviations: AFLP, amplified fragment length polymorphisms; NTSYS, numerical taxonomy and multivariate analysis system; PCR, polymerase chain reaction; RAPD, randomly amplified polymorphic DNA; RFLP, restriction fragment length polymorphism; UPGMA, unweighted pair group method based on arithmetic averages.
Out of the nine all except OPC-1, produced polymorphic bands and Numerical Taxonomy and Multivariate Analysis System (NTSYS) revealed 56% similarity among the selected species.
The data matrix was analyzed using the Numerical Taxonomy and Multivariate Analysis System (NTSYS) version 3.2 (Rohlf, 1993).
A numerical taxonomy study of affinity relationships in cultivated Citrus and its close relatives.

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