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- W2019189241 abstract "The taxonomy of Echinacea is based on morphological characters and has varied depending on the monographer. The genus consists of either nine species and four varieties or four species and eight varieties. We have used amplified fragment length polymorphisms (AFLP) to assess genetic diversity and phenetic relationships among nine species and three varieties of Echinacea (sensu McGregor). A total of 1086 fragments, of which approximately 90% were polymorphic among Echinacea taxa, were generated from six primer combinations. Nei and Li's genetic distance coefficient and the neighbor-joining algorithm were employed to construct a phenetic tree. Genetic distance results indicate that all Echinacea species are closely related, and the average pairwise distance between populations was approximately three times the intrapopulation distances. The topology of the neighbor-joining tree strongly supports two major clades, one containing Echinacea purpurea, Echinacea sanguinea, and Echinacea simulata and the other containing the remainder of the Echinacea taxa (sensu McGregor). The species composition within the clades differs between our AFLP data and the morphometric treatment offered by Binns and colleagues. We also discuss the suitability of AFLP in determining phylogenetic relationships.Key words: Echinacea, AFLP, genetic distance, phylogeny." @default.
- W2019189241 created "2016-06-24" @default.
- W2019189241 creator A5061540198 @default.
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- W2019189241 date "2004-01-01" @default.
- W2019189241 modified "2023-10-16" @default.
- W2019189241 title "Genetic diversity of<i>Echinacea</i>species based upon amplified fragment length polymorphism markers" @default.
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- W2019189241 doi "https://doi.org/10.1139/g03-086" @default.
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