Biogeographical and evolutionary insights onErigeron and allies (Asteraceae) from ITS sequence data
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 su...
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| Veröffentlicht in: | Plant systematics and evolution 2000-03, Vol.220 (1-2), p.93-114 |
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| creator | Noyes, Richard D. |
| description | 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. |
| doi_str_mv | 10.1007/BF00985373 |
| format | Article |
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| ispartof | Plant systematics and evolution, 2000-03, Vol.220 (1-2), p.93-114 |
| issn | 0378-2697 1615-6110 2199-6881 |
| language | eng |
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| source | Springer Online Journals Complete; JSTOR Archive Collection A-Z Listing |
| subjects | Autogamy Distribution patterns Geographical distribution Phylogeny Self-fertilization Spacer region |
| title | Biogeographical and evolutionary insights onErigeron and allies (Asteraceae) from ITS sequence data |
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