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This article in CS

  1. Vol. 51 No. 4, p. 1410-1413
    Received: Nov 17, 2011

    * Corresponding author(s): rich.zobel@ars.usda.gov
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A Developmental Genetic Basis for Defining Root Classes

  1. Richard W. Zobel *
  1. USDA-ARS, 1224 Airport Rd., Beaver, WV 25813


Root class nomenclature has not been standardized across species and groups (families). This has lead to a lack of transferability of conclusions from one species to another. The International Society for Root Research (ISRR) has approved a four class nomenclature for roots (Zobel and Waisel, 2010). A review of literature that has not been routinely cited by plant anatomists suggests that there are at least four classes and eight subclasses of root, based on developmental genetic characteristics across eudicots and monocots. The use of this classification scheme to develop research on specific classes of root may suggest a far more simple genetic basis than that suggested by current molecular and proteomic research.

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