Portail documentaire

Biogeographical and evolutionary insights on Erigeron and allies (Asteraceae) from ITS sequence data / R. D. Noyes (2000)

Public Citation est un tiré à part de 220 - 2000 (Plant systematics and evolution) Titre : Biogeographical and evolutionary insights on Erigeron and allies (Asteraceae) from ITS sequence data Type de document : Tiré à part de revue Auteurs : R. D. Noyes ; Indiana University : Department of biology, Bloomington, Indiana, USA Année de publication : 2000 Importance : 93-114 Langues : Anglais (eng) Catégories : [CBNPMP-Thématique] Biogéographie comparée [CBNPMP-Thématique] Phylogénie (liens existant entre espèces apparentées) Mots-clés : Asteraceae  Erigeron Résumé : Complex geographical distribution patterns and agamospermy have united to obscure systematic relationships in the genusErigeron (400+ species). Sequence data were analyzed from the internal transcribed spacer region of nrDNA (ITS) and 5.8S cistron for 77 taxa including 63Erigeron species. Results support the North American origin ofErigeron and document thatAphanostephus, Conyza, and three small genera restricted to South America (Apopyros, Hysterionica, Neja) are all derived from withinErigeron. Phylogenetic data indicate that agamospermy has arisen at least three times inErigeron and that autogamy has evolved independently inConyza and inE. sect.Trimorpha. Lien pérenne : DOI : 10.1007/BF00985373 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=130311 Noyes, R. D., Indiana University : Department of biology, Bloomington, Indiana, USA 2000 Biogeographical and evolutionary insights on Erigeron and allies (Asteraceae) from ITS sequence data. Plant systematics and evolution, 220 : 93-114.

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
8427	N	Tiré à part	Centre de documentation	Tirés à part	Consultable

ITS sequence data support a single origin for North American Astereae (Asteraceae) and reflect deep geographic divisions in Aster S.L. / R. D. Noyes (1999) 

Public Citation est un tiré à part de 86 (3) - 1999 (American Journal of Botany) Titre : ITS sequence data support a single origin for North American Astereae (Asteraceae) and reflect deep geographic divisions in Aster S.L. Type de document : Tiré à part de revue Auteurs : R. D. Noyes ; Loren H Rieseberg (1961-) Année de publication : 1999 Importance : 398-412 Langues : Anglais (eng) Catégories : [CBNPMP-Thématique] Phylogénie (liens existant entre espèces apparentées) Mots-clés : Asteraceae Résumé : The Astereae is the largest tribe of Asteraceae in North America. Morphological diversity suggests that the North American assemblage is polyphyletic as 12 endemic genera, as well as lineages of the genus Erigeron and Conyza (Conyzinae), have been hypothesized to represent at least five separate invasions of North America from Africa, Australia, Eurasia, and South America. This hypothesis was tested with a phylogenetic analysis of nucleotide sequence data from the internal transcribed spacers (ITS) of nuclear ribosomal DNA. Sequences for 62 taxa represent seven outgroup taxa and all major Northern and Southern Hemisphere groups of Astereae, including broad taxonomic and geographic sampling of Conyzinae and Aster s.l. (sensu lato). Parsimony analyses indicate that all North American Astereae are members of a strongly supported clade, and that a diverse group of predominantly woody taxa from Africa, Australia, and South America, are basal Astereae. Furthermore, Aster s.l. is deeply polyphyletic as Eurasian taxa, including Aster s.s. (sensu stricto), appear more closely related to Southern Hemisphere taxa than to North American Aster segregates. There is only low to moderate agreement between proposed higher level Astereae relationships based on ITS and those based either on morphology or chloroplast restriction site data. Lien pérenne : DOI : 10.2307/2656761 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=130310 Noyes, R. D., Rieseberg, Loren H (1961-) 1999 ITS sequence data support a single origin for North American Astereae (Asteraceae) and reflect deep geographic divisions in Aster S.L. American Journal of Botany, 86(3) : 398-412.

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
8426	N	Tiré à part	Centre de documentation	Tirés à part	Consultable

Documents numériques

Consultable Article (1999) URL