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    • Desert Plants, Volume 7, Number 2 (1985)
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    Chromosome and Hybridization Studies of Agave

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    Author
    Pinkava, Donald J.
    Baker, Mark A.
    Affiliation
    Department of Botany and Microbiology, Arizona State University
    Issue Date
    1985
    
    Metadata
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    Publisher
    University of Arizona (Tucson, AZ)
    Journal
    Desert Plants
    Rights
    Copyright © Arizona Board of Regents. The University of Arizona.
    Collection Information
    Desert Plants is published by The University of Arizona for the Boyce Thompson Southwestern Arboretum. For more information about this unique botanical journal, please email the College of Agriculture and Life Sciences Publications Office at pubs@cals.arizona.edu.
    Abstract
    Interspecific hybridization, paleopolyploidy, secondary polyploidy, and vegetative reproduction appear to play significant roles in the evolution of Agave and certain related genera. First chromosome counts are reported for Hesperaloe funifera and 10 taxa of Agave including two triploid and one diploid putative hybrids. All of our counts for Yucca, Hesperaloe, and Agave are in agreement with the base number, x = 30, which comprises a complement of five very large chromosomes and 25 medium to small chromosomes. All published chromosome counts of Agave have been tabulated and the roles of hybridization and polyploidy are assessed. Secondary polyploidy occurs in 26 of 48 (54.2 %) reported taxa of Agave; as yet only one-fourth of the total taxa are chromosomally known.
    Type
    Article
    ISSN
    0734-3434
    Collections
    Desert Plants, Volume 7, Number 2 (1985)

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