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  • Title: Walkabout on the long branches of plant evolution.
    Author: Bowman JL.
    Journal: Curr Opin Plant Biol; 2013 Feb; 16(1):70-7. PubMed ID: 23140608.
    Abstract:
    The closest living relatives of land plants, the Charophytes, and early diverging land plant lineages, the bryophytes, reside in a phylogenetic grade. Recent analyses have resolved relationships and demonstrated that some components of the land plant developmental genetic toolkit have their origin in algal ancestors. Phylogenetic grades of taxa imply long independent evolutionary histories, with extant species diversity potentially relictual and highly derived morphologically, making reconstruction of ancestral states problematic. Incorporating data on the genetic bases of character states may be phylogenetically informative in elucidating ancestral states in cases where morphology is highly divergent.
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