The taxonomic status of Astragalus mokiacensis (Fabaceae), a species endemic to the southwestern United States

Alexander, Jason

doi:10.1663/0007-196x(2005)057[0320:ttsoam]2.0.co;2

Brittonia

2005

DOI: 10.1663/0007-196x(2005)057[0320:ttsoam]2.0.co;2

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The taxonomic status of Astragalus mokiacensis (Fabaceae), a species endemic to the southwestern United States

Jason Alexander

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2005

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“…This trend has been partially offset by the description of new varieties since 1964 (e.g., Barneby, 1977;Welsh, 1981 ). While the currently recognized number of varieties is 40 (Isely, 1998) there is still an active debate as to what constitutes A. lentiginosus (Alexander, 2005) as well as to the validity of the varieties.…”

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Genetic characterization of three varieties of Astragalus lentiginosus (Fabaceae)

2005

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Genetic characterization of three varieties of Astragalus lentiginosus (Fabaceae). Brittonia 57: 334-344. 2005.~Astragalus lentiginosus is a polymorphic species that occurs in geologically young habitats and whose varietal circumscription implies active morphological and genetic differentiation. In this preliminary study, we evaluate the potential of amplified fragment length polymorphism (AFLP) markers to resolve infraspecific taxa in three varieties of Astragalus lentiginosus. Distance-based principle coordinate and neighbor-joining analyses result in clustering of individuals that is congruent with population origin and varietal circumscription. Analysis of molecular variance of two Oregon varieties demonstrates that varietal categories account for 11% of the total variance; in contrast, geographic proximity does not contribute to the total variance. AFLPs demonstrate an ability to discriminate varieties of A. lentiginosus despite a potentially confounding geographic pattern, and may prove effective at inferring relationships throughout the group.

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Genetic characterization of three varieties of Astragalus lentiginosus (Fabaceae)

2005

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The taxonomic status of Astragalus mokiacensis (Fabaceae), a species endemic to the southwestern United States

Cited by 1 publication

References 6 publications

Genetic characterization of three varieties of Astragalus lentiginosus (Fabaceae)

Genetic characterization of three varieties of Astragalus lentiginosus (Fabaceae)

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