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 journalArticle

373 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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