TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

PHYLOGENETIC ANALYSIS [3 records]

Record 1 2016-10-31

English

Subject field(s)
  • Evolution (Biology)
  • Genetics
CONT

The dominant view of the evolution of life is that all existing organisms are derived from some common ancestor and that a new species arises by a splitting of one population into two or more populations that do not crossbreed, rather than by mixing of two populations into one. Therefore, the high level history of life is ideally organized and displayed as a rooted, directed tree. Study of the life with an evolutionary perspective is of utmost importance. Phylogenetic analysis is the study of these evolutionary relationships.

French

Domaine(s)
  • Évolution (Biologie)
  • Génétique
CONT

Le paradigme de la biologie moderne, la théorie de l'évolution, nous impose de retracer l'histoire de l'évolution, autrement dit la phylogénie. En tant que construction historique, la phylogénie - représentée sous la forme d'un arbre - demeure une hypothèse. Par voie de conséquence, il est indispensable d'être explicite à propos des prémisses sur lesquelles reposent les différentes méthodes phylogénétiques en usage. En principe, l'analyse phylogénétique s'appuie sur les caractères intrinsèques aux organismes : caractères morpho-anatomiques, moléculaires, voire éthologiques.

CONT

En utilisant une technologie basée sur l'ADN et une analyse phylogénétique, le degré de différenciation génétique entre les populations géographiquement isolées a pu être déterminé.

OBS

analyse phylogénétique : terme extrait du «Glossaire de l’agriculture» et reproduit avec l’autorisation de l’Organisation de coopération et de développement économiques.

Spanish

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Record 2 2015-12-11

English

Subject field(s)
  • Genetics
CONT

Two decades of culture-independent studies have confirmed that microbial communities represent the most complex and concentrated pool of phylogenetic diversity on the planet. There remains a need for innovative molecular tools that can further our knowledge of microbial diversity and its functional implications. We present the method and application of serial analysis of ribosomal sequence tags(SARST) as a novel tool for elucidating complex microbial communities, such as those found in soils and sediments. Serial analysis of ribosomal sequence tags uses a series of enzymatic reactions to amplify and ligate ribosomal sequence tags(RSTs) from bacterial small subunit rRNA gene(SSU rDNA) V1-regions into concatemers that are cloned and sequenced.

French

Domaine(s)
  • Génétique
CONT

Les techniques faisant partie du séquençage à haut débit comprennent l'analyse sériée d'étiquettes de séquences ribosomiques (SARST) et les plateformes de séquençage de la prochaine génération comme le pyroséquençage 454, l'Illumina et le séquençage par ligation (SOLiD). Ces méthodes génèrent des milliers de séquences, permettant une grosse couverture de la diversité bactérienne.

Spanish

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Record 3 2011-08-19

English

Subject field(s)
  • Plant Biology
  • Botany
  • Ecology (General)
  • Animal Behaviour
DEF

A small structure on certain plants, particularly on the leaves, located in the axils of the primary veins, which forms a shelter for organisms such as insects or fungi.

CONT

Phylogenetic analysis of representative groups of ants in the subfamily Pseudomyrmecinae indicates that specialized relationships with domatia-bearing plants have evolved independently at least 12 times within the subfamily... In most instances the plant provides some kind of intrinsically hollow, or easily excavated, cavity(domatium) in which the ants keep brood and scale insects(Coccoidea). The ants, in turn, protect the host plant from herbivores and(sometimes) from other competing plants.

Key term(s)
  • domatia

French

Domaine(s)
  • Biologie végétale
  • Botanique
  • Écologie (Généralités)
  • Comportement animal
CONT

La coévolution plantes-fourmis. Contre une protection, les plantes fournissent le gîte (domaties : épines, tiges, limbes présentant des cavités) et/ou le couvert (nectar extrafloral; corps nourriciers).

Spanish

Save record 3

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