Primitive (phylogenetics) (original) (raw)
In phylogenetics, a primitive (or ancestral) character, trait, or feature of a lineage or taxon is one that is inherited from the common ancestor of a clade (or clade group) and has undergone little change since. Conversely, a trait that appears within the clade group (that is, is present in any subgroup within the clade but not all) is called advanced or derived. A clade is a group of organisms that consists of a common ancestor and all its lineal descendants.
| Property | Value |
|---|---|
| dbo:abstract | In phylogenetics, a primitive (or ancestral) character, trait, or feature of a lineage or taxon is one that is inherited from the common ancestor of a clade (or clade group) and has undergone little change since. Conversely, a trait that appears within the clade group (that is, is present in any subgroup within the clade but not all) is called advanced or derived. A clade is a group of organisms that consists of a common ancestor and all its lineal descendants. A primitive trait is the original condition of that trait in the common ancestor; advanced indicates a notable change from the original condition. These terms in biology contain no judgement about the sophistication, superiority, value or adaptiveness of the named trait. "Primitive" in biology means only that the character appeared first in the common ancestor of a clade group and has been passed on largely intact to more recent members of the clade. "Advanced" means the character has evolved within a later subgroup of the clade. Phylogenetics is utilized to determine evolutionary relationships and relatedness, to ultimately depict accurate evolutionary lineages. Evolutionary relatedness between living species can be connected by descent from common ancestry. These evolutionary lineages can thereby be portrayed through a phylogenetic tree, or cladogram, where varying relatedness amongst species is evidently depicted. Through this tree, organisms can be categorized by divergence from the common ancestor, and primitive characters, to clades of organisms with shared derived character states. Furthermore, cladograms allow researchers to view the changes and evolutionary alterations occurring in a species over time as they move from primitive characters to varying derived character states. Cladograms are important for scientists as they allow them to classify and hypothesize the origin and future of organisms. Cladograms allow scientists to propose their evolutionary scenarios about the lineage from a primitive trait to a derived one. By understanding how the trait came to be, scientists can hypothesize the environment that specific organism was in and how that affected the evolutionary adaptations of the trait that came to be. Other, more technical, terms for these two conditions—for example, "plesiomorphic" and "synapomorphic"—are frequently encountered; see the table below. (en) Примитивность (в филогенетике) — совокупность наследованных той или иной группой организмов признаков, которые были присущи предкам этой группы, однако в процессе эволюции были изменены или утрачены большинством потомков. Понятие «примитивный» может быть также замещено понятием «плезиоморфный». Характеристику «примитивный/продвинутый» не рекомендуется применять по отношению к биологическим видам, так как не все признаки предков, считающиеся примитивными, развиваются у потомков с одинаковой скоростью и в одинаковой мере, и в более развитом организме могут сочетаться как современные, так и архаичные черты. (ru) |
| dbo:wikiPageID | 2669638 (xsd:integer) |
| dbo:wikiPageLength | 8533 (xsd:nonNegativeInteger) |
| dbo:wikiPageRevisionID | 1093868191 (xsd:integer) |
| dbo:wikiPageWikiLink | dbr:Synapomorphy dbc:Evolutionary_biology dbr:Phylogenetics dbr:Clade dbr:Great_chain_of_being dbr:Taxon dbr:Lower_plant dbr:Higher_plant dbr:Plesiomorphy dbr:Common_ancestor |
| dbp:wikiPageUsesTemplate | dbt:Reflist dbt:Short_description dbt:Phylogenetics |
| dct:subject | dbc:Evolutionary_biology |
| rdfs:comment | In phylogenetics, a primitive (or ancestral) character, trait, or feature of a lineage or taxon is one that is inherited from the common ancestor of a clade (or clade group) and has undergone little change since. Conversely, a trait that appears within the clade group (that is, is present in any subgroup within the clade but not all) is called advanced or derived. A clade is a group of organisms that consists of a common ancestor and all its lineal descendants. (en) Примитивность (в филогенетике) — совокупность наследованных той или иной группой организмов признаков, которые были присущи предкам этой группы, однако в процессе эволюции были изменены или утрачены большинством потомков. (ru) |
| rdfs:label | Primitive (phylogenetics) (en) Примитивность (ru) |
| owl:sameAs | freebase:Primitive (phylogenetics) wikidata:Primitive (phylogenetics) dbpedia-az:Primitive (phylogenetics) http://bs.dbpedia.org/resource/Primitivnost_(evolucija) dbpedia-ms:Primitive (phylogenetics) dbpedia-ru:Primitive (phylogenetics) dbpedia-tr:Primitive (phylogenetics) https://global.dbpedia.org/id/4tTZr |
| prov:wasDerivedFrom | wikipedia-en:Primitive_(phylogenetics)?oldid=1093868191&ns=0 |
| foaf:isPrimaryTopicOf | wikipedia-en:Primitive_(phylogenetics) |
| is dbo:wikiPageDisambiguates of | dbr:Primitive |
| is dbo:wikiPageRedirects of | dbr:Ancestral_state dbr:Ancestral_trait dbr:Derived_(phylogenetics) dbr:Primitive_(biology) dbr:Primitive_(phylogeny) |
| is dbo:wikiPageWikiLink of | dbr:Camarasaurus dbr:Captorhinidae dbr:Prionomyrmex dbr:Qaisracetus dbr:Rodhocetus dbr:Scorpion dbr:Metanephrops_challengeri dbr:Vicia_orobus dbr:Baryonyx dbr:Basal_(phylogenetics) dbr:Bison dbr:Bovidae dbr:Deer dbr:Dendropithecus dbr:Apis_florea dbr:Aquatic_feeding_mechanisms dbr:Hypsilophodon dbr:John_S._Clark dbr:List_of_Kamen_Rider_Saber_characters dbr:List_of_World_Heritage_Sites_in_Oceania dbr:Phantomosaurus dbr:Cyrba dbr:Umoonasaurus dbr:Devolution_(biology) dbr:Eastern_oyster dbr:Myrmecia_esuriens dbr:Nepenthes_pervillei dbr:Third_trochanter dbr:Timeline_of_ornithomimosaur_research dbr:Crevice_weaver dbr:Chemical_element dbr:Gastrotrich dbr:Neanderthal_anatomy dbr:Outgroup_(cladistics) dbr:Proximodorsal_process dbr:Turbinidae dbr:Cockroach dbr:Electric_fish dbr:Electroreception_and_electrogenesis dbr:Fungus dbr:Galulatherium dbr:Goblin_shark dbr:Golden_mole dbr:Monotreme dbr:Mosasaurus dbr:Multituberculata dbr:Archaeognatha dbr:Lucy_(Australopithecus) dbr:Lungfish dbr:Sirenidae dbr:Henophidia dbr:Babiana dbr:Barbary_macaque dbr:Tiger dbr:Leadbeater's_possum dbr:Portia_labiata dbr:Acipenseriformes dbr:Agustinia dbr:Amborella dbr:Ampullae_of_Lorenzini dbr:Anatomy dbr:Amazops dbr:Eurypterid dbr:Evolution_of_snake_venom dbr:Fish_anatomy dbr:Florida_State_University dbr:Banksia_dentata dbr:Nothomyrmecia dbr:Pachydactylus dbr:Diplomystidae dbr:Hand dbr:Primitive dbr:Isoxys dbr:Japanese_serow dbr:Tatuidris dbr:Tawa_hallae dbr:Taxonomy_of_the_Orchidaceae dbr:Hydra_(genus) dbr:Abantiades_latipennis dbr:Abductor_pollicis_longus_muscle dbr:Acoelomorpha dbr:Choristodera dbr:Kentrosaurus dbr:Bolivia_maize_varieties dbr:Polychelidae dbr:Portia_africana dbr:Portia_fimbriata dbr:Portia_schultzi dbr:South_Asian_river_dolphin dbr:Sphecomyrma dbr:Grey_crowned_crane dbr:Koala dbr:Miacidae dbr:National_Aquarium_Denmark dbr:Ochnaceae dbr:Opilioacaridae dbr:Ornithocheiromorpha dbr:Canterbury_gecko dbr:Radinskya dbr:Raninidae dbr:Red-backed_salamander dbr:Redlichiida dbr:Xenungulata dbr:Eupales dbr:Phaeacius dbr:Philtrum dbr:Prionomyrmecini dbr:Paleobiota_of_the_Hell_Creek_Formation dbr:Trogocytosis dbr:Ancestral_state dbr:Ancestral_trait dbr:Derived_(phylogenetics) dbr:Primitive_(biology) dbr:Primitive_(phylogeny) |
| is foaf:primaryTopic of | wikipedia-en:Primitive_(phylogenetics) |