A brief history of seed size

Angela T. Moles*, David D. Ackerly, Campbell O. Webb, John C. Twiddle, John B. Dickie, Mark Westoby

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    441 Citations (Scopus)

    Abstract

    Improved phylogenies and the accumulation of broad comparative data sets have opened the way for phylogenetic analyses to trace trait evolution in major groups of organisms. We arrayed seed mass data for 12,987 species on the seed plant phylogeny and show the history of seed size from the emergence of the angiosperms through to the present day. The largest single contributor to the present-day spread of seed mass was the divergence between angiosperms and gymnosperms, whereas the widest divergence was between Celastraceae and Parnassiaceae. Wide divergences in seed size were more often associated with divergences in growth form than with divergences in dispersal syndrome or latitude. Cross-species studies and evolutionary theory are consistent with this evidence that growth form and seed size evolve in a coordinated manner.

    Original languageEnglish
    Pages (from-to)576-580
    Number of pages5
    JournalScience
    Volume307
    Issue number5709
    DOIs
    Publication statusPublished - 28 Jan 2005

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