Clasificación biológica como una taxonomía cientifica

Taxonomías folk

ClaseOrdenGéneroEspecieVariedad

Systema Naturae

Nombre científicoNomenclatura binominal -latín ej. Latimeria chalumnaeAutoridades

Códigos de Nomenclatura * International Code of Zoological Nomenclature, ICZN) * International Code of Botanical Nomenclature, ICBN; incluye hongos y cianobacterias) * International Code of Nomenclature of Bacteria, abbreviated ICNB) * viruses (sistema Baltimore).

Tipo - fija el nombre a un taxon

- Common descent

Evolucionismo

Fenética - Taxonomía Numérica

Clustering, ordination

SneathSokal

Neighbor joining

SibleyDNA-DNA hybridization

Neighbor joining

Cladismo

- Sistemática Filogenética

W. Hennig

"Grundzüge einer Theorie der Phylogenetischen Systematik" (1950)

Homología -homoplasia

Primitivo - derivado

parsimonia

Uso de modelos evolutivos

M. Kimura "The neutral theory of molecular evolution" (1968)

King andJukes’"Non-Darwinian Evolution" (1969).

Null model- reloj molecular

Tomoko Ohta

nearly neutral theory of molecular evolution is a modification of the neutral theory of molecular evolution that accounts for slightly advantageous or deleterious mutations at the molecular level

nearly neutral theory predicts a relationship between population size and the rate of molecular evolution: in larger populations, genetic drift, which can bring even slightly deleterious mutations to fixation, is a weaker force, so evolution happens more slowly than in smaller populations

DNA substitution mutations are of two types. Transitions are interchanges of two-ring purines (A G) or of one-ring pyrimidines (C T): they therefore involve bases of similar shape. Transversions are interchanges of purine for pyrimidine bases, which therefore involve exchange of one-ring and two-ring structures.

Although there are twice as many possible transversions, because of the molecular mechanisms by which they are generated, transition mutations are generated at higher frequency than transversions. As well, because transitions are less likely to result in amino acid substitutions, they are more likely to persist and hence are more frequently observed in populations as single nucleotide polymorphisms (SNPs) than are transversions.

Nei M & Kumar S (2000) Molecular Evolution and Phylogenetics. Oxford University Press, New York.

http://www.nature.com/scitable/topicpage/Neutral-Theory-The-Null-Hypothesis-of-Molecular-839

Tarea:

Localiza una clasificación comúnmente utilizada en algún grupo de tu interés. De preferencia una familia, orden o clase.

Localiza una filogenia producida para ese grupo

Compara que tanto la clasificación concuerda, refleja o recupera la información filogenética.

Discute y propon modificaciones.

Ensayo de 2-5 páginas.