Matches in SemOpenAlex for { <https://semopenalex.org/work/W1989224252> ?p ?o ?g. }
Showing items 1 to 94 of
94
with 100 items per page.
- W1989224252 endingPage "140" @default.
- W1989224252 startingPage "124" @default.
- W1989224252 abstract "In the flora of temperate South America are two species of Compositae, tribe Cichorieae, subtribe Microseridinae, that are disjunct from the North American centers of distribution of their respective genera. Microseries pygmaea, an autogamous annual of central Chile, is morphologically similar to several species of like habit, found in the climatically comparable Californian region. A hybrid obtained between M. Pygmacea and the closely related North American species, M. bigelovii, showed normal meiotic behavior and was almost fully fertile. In an F generation of 55 plants, phenotypic segregation was more in the direction of M. bigelovii, and two individuals resembled that species with only minor differences. There was a complex pattern of inheritance for the number of pappus scales on the fruit, a characteristic of major taxonomic importance in distinguishing the parent species. A reduction in seed fertility of certain hybrid plants was ascribed to segregation of a small, nonreciprocal chromosome translocation. It was concluded that the two species are adequately distinct taxonomically but are genetically closely related and interfertile. Microseries probably reached South America by long-distance dispersal, the most likely time for migration being the middle or late Pliocene Epoch. In the second example, Agoseris coronopifolia is a variable species, distributed over the southern tip of the continent, which can be differentiated from the North American Agoseris heterophylla only with difficulty. Both species are composed primarily of annual or perennial plants with autogamous reproduction. Adaptations for out-crossing are present in some races of A. heterophylla but not in A. coronopifolia. Preliminary crossing experiments suggest that genetic barriers exist between the species. The general pattern of phytogeographical and evolutionary relatioships in Agoseris and Microseris is like that in certain other families of similar distribution." @default.
- W1989224252 created "2016-06-24" @default.
- W1989224252 creator A5000148757 @default.
- W1989224252 date "1963-06-01" @default.
- W1989224252 modified "2023-10-06" @default.
- W1989224252 title "Amphitropical Species Pairs in Microseris and Agoseris (Compositae: Cichorieae)" @default.
- W1989224252 cites W1554290691 @default.
- W1989224252 cites W2011857829 @default.
- W1989224252 cites W2075394457 @default.
- W1989224252 cites W2317307943 @default.
- W1989224252 cites W2323263491 @default.
- W1989224252 cites W2332771580 @default.
- W1989224252 cites W2498672684 @default.
- W1989224252 cites W564789663 @default.
- W1989224252 doi "https://doi.org/10.1086/403795" @default.
- W1989224252 hasPublicationYear "1963" @default.
- W1989224252 type Work @default.
- W1989224252 sameAs 1989224252 @default.
- W1989224252 citedByCount "31" @default.
- W1989224252 countsByYear W19892242522013 @default.
- W1989224252 countsByYear W19892242522015 @default.
- W1989224252 crossrefType "journal-article" @default.
- W1989224252 hasAuthorship W1989224252A5000148757 @default.
- W1989224252 hasConcept C120149898 @default.
- W1989224252 hasConcept C122995739 @default.
- W1989224252 hasConcept C144024400 @default.
- W1989224252 hasConcept C149923435 @default.
- W1989224252 hasConcept C157369684 @default.
- W1989224252 hasConcept C15744967 @default.
- W1989224252 hasConcept C159985019 @default.
- W1989224252 hasConcept C18903297 @default.
- W1989224252 hasConcept C19165224 @default.
- W1989224252 hasConcept C192562407 @default.
- W1989224252 hasConcept C204323151 @default.
- W1989224252 hasConcept C24461792 @default.
- W1989224252 hasConcept C2777234453 @default.
- W1989224252 hasConcept C2779121571 @default.
- W1989224252 hasConcept C2780926781 @default.
- W1989224252 hasConcept C2781445333 @default.
- W1989224252 hasConcept C2908647359 @default.
- W1989224252 hasConcept C44670240 @default.
- W1989224252 hasConcept C47559259 @default.
- W1989224252 hasConcept C523546767 @default.
- W1989224252 hasConcept C542102704 @default.
- W1989224252 hasConcept C54355233 @default.
- W1989224252 hasConcept C59822182 @default.
- W1989224252 hasConcept C81461190 @default.
- W1989224252 hasConcept C86803240 @default.
- W1989224252 hasConceptScore W1989224252C120149898 @default.
- W1989224252 hasConceptScore W1989224252C122995739 @default.
- W1989224252 hasConceptScore W1989224252C144024400 @default.
- W1989224252 hasConceptScore W1989224252C149923435 @default.
- W1989224252 hasConceptScore W1989224252C157369684 @default.
- W1989224252 hasConceptScore W1989224252C15744967 @default.
- W1989224252 hasConceptScore W1989224252C159985019 @default.
- W1989224252 hasConceptScore W1989224252C18903297 @default.
- W1989224252 hasConceptScore W1989224252C19165224 @default.
- W1989224252 hasConceptScore W1989224252C192562407 @default.
- W1989224252 hasConceptScore W1989224252C204323151 @default.
- W1989224252 hasConceptScore W1989224252C24461792 @default.
- W1989224252 hasConceptScore W1989224252C2777234453 @default.
- W1989224252 hasConceptScore W1989224252C2779121571 @default.
- W1989224252 hasConceptScore W1989224252C2780926781 @default.
- W1989224252 hasConceptScore W1989224252C2781445333 @default.
- W1989224252 hasConceptScore W1989224252C2908647359 @default.
- W1989224252 hasConceptScore W1989224252C44670240 @default.
- W1989224252 hasConceptScore W1989224252C47559259 @default.
- W1989224252 hasConceptScore W1989224252C523546767 @default.
- W1989224252 hasConceptScore W1989224252C542102704 @default.
- W1989224252 hasConceptScore W1989224252C54355233 @default.
- W1989224252 hasConceptScore W1989224252C59822182 @default.
- W1989224252 hasConceptScore W1989224252C81461190 @default.
- W1989224252 hasConceptScore W1989224252C86803240 @default.
- W1989224252 hasIssue "2" @default.
- W1989224252 hasLocation W19892242521 @default.
- W1989224252 hasOpenAccess W1989224252 @default.
- W1989224252 hasPrimaryLocation W19892242521 @default.
- W1989224252 hasRelatedWork W1476923026 @default.
- W1989224252 hasRelatedWork W1970695225 @default.
- W1989224252 hasRelatedWork W2040459148 @default.
- W1989224252 hasRelatedWork W2100734825 @default.
- W1989224252 hasRelatedWork W2130455859 @default.
- W1989224252 hasRelatedWork W2185776902 @default.
- W1989224252 hasRelatedWork W2351082248 @default.
- W1989224252 hasRelatedWork W2363679730 @default.
- W1989224252 hasRelatedWork W3021519291 @default.
- W1989224252 hasRelatedWork W3209752388 @default.
- W1989224252 hasVolume "38" @default.
- W1989224252 isParatext "false" @default.
- W1989224252 isRetracted "false" @default.
- W1989224252 magId "1989224252" @default.
- W1989224252 workType "article" @default.