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    Author(s): Bryce A. Richardson; Justin T. Page; Prabin Bajgain; Stewart C. Sanderson; Joshua A. Udall
    Date: 2012
    Source: American Journal of Botany. 99(12): 1962-1975.
    Publication Series: Scientific Journal (JRNL)
    Station: Rocky Mountain Research Station
    PDF: View PDF  (1.09 MB)

    Description

    Premise of the study: Hybridization has played an important role in the evolution and ecological adaptation of diploid and polyploid plants. Artemisia tridentata (Asteraceae) tetraploids are extremely widespread and of great ecological importance. These tetraploids are often taxonomically identified as A. tridentata subsp. wyomingensis or as autotetraploids of diploid subspecies tridentata and vaseyana. Few details are available as to how these tetraploids are formed or how they are related to diploid subspecies.

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    Citation

    Richardson, Bryce A.; Page, Justin T.; Bajgain, Prabin; Sanderson, Stewart C.; Udall, Joshua A. 2012. Deep sequencing of amplicons reveals widespread intraspecific hybridization and multiple origins of polyploidy in big sagebrush (Artemisia tridentata, Asteraceae). American Journal of Botany. 99(12): 1962-1975.

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    Keywords

    Artemesia tridentata, Asteraceae, gene discordance, haplotype clustering, networks, phylogeny, pyrosequencing, reticulate evolution

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