Evolutionary divergence of leaf width and its correlates.


UNLABELLED:• PREMISE OF THE STUDY:The question why leaf dimensions vary so much between species has long puzzled ecologists. Presumably, variation arises from selective forces acting on leaf function but which selective forces and which leaf functions? This investigation assesses the consistency of divergence in plant traits and habitat variables in association with leaf width divergence in the flora of NSW, Australia.• METHODS:More than 80 traits and habitat variables were measured for 25 independent evolutionary divergence events (PICs). Each PIC was represented by two related plant species that had diverged substantially in leaf width. Outgroup species provided indications of the direction of divergence. Most PICs were within genus, so divergences represent relatively recent evolutionary events.• KEY RESULTS:No plant traits or habitat variables were 100% consistently associated with a divergence in leaf width, and surprisingly few diverged in a consistent direction significantly more than what might be expected by chance. This surprising lack of consistent divergence with leaf width contrasted with the result that many of these traits and habitat variables were correlated with leaf width across all species in our data set and in line with correlations reported from other studies. Subcategorizing PICs according to the probable direction of leaf width divergence did not improve consistency.• CONCLUSIONS:These results indicate that evolutionarily recent leaf width divergence events are not tightly tied to divergences in other leaf traits or in environmental situations, despite the broad correlations that have been observed across many species. Rather, cross species correlations are underpinned by earlier divergence events in the phylogeny.


Am J Bot


Tozer WC,Rice B,Westoby M




Has Abstract


2015-03-01 00:00:00














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    abstract::Phylogenetic relationships and biogeography of the genus Cerastium were studied using sequences of three noncoding plastid DNA regions (trnL intron, trnL-trnF spacer, and psbA-trnH spacer). A total of 57 Cerastium taxa was analyzed using two species of the putative sister genus Stellaria as outgroups. Maximum parsimon...

    journal_title:American journal of botany

    pub_type: 杂志文章


    authors: Scheen AC,Brochmann C,Brysting AK,Elven R,Morris A,Soltis DE,Soltis PS,Albert VA

    更新日期:2004-06-01 00:00:00

  • Development of ovule, embryo sac, and endosperm in Triteleia (Themidaceae) relative to taxonomy.

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    journal_title:American journal of botany

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    authors: Berg RY

    更新日期:2003-06-01 00:00:00

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    abstract::Nuphar comprises 13 species of aquatic perennials distributed in the temperate Northern Hemisphere. The European species N. lutea and N. pumila in Norway, the Netherlands, and Germany are pollinated by bees and flies, including apparent Nuphar specialists. This contrasts with reports of predominant beetle pollination ...

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  • Similarities and differences in intrapopulation trait correlations of co-occurring tree species: consistent water-use relationships amid widely different correlation patterns.

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    journal_title:American journal of botany

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    authors: Messier J,Violle C,Enquist BJ,Lechowicz MJ,McGill BJ

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  • Morphology and development of the female flowers in Geonoma interrupta (Arecaceae).

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    authors: Stauffer FW,Rutishauser R,Endress PK

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  • Genetic variation and phylogeography of Stauracanthus (Fabaceae, Genisteae) from the Iberian Peninsula and northern Morocco assessed by chloroplast microsatellite (cpSSR) markers.

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    authors: Pardo C,Cubas P,Tahiri H

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    pub_type: 杂志文章


    authors: Abrahamson WG,Layne JN

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  • Vallisneria americana (Hydrocharitaceae) as a biomonitor of aquatic ecosystems: comparison of cloned genotypes.

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    authors: Biernacki M,Lovett-Doust J

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  • Evolution of gynoecium morphology in Old World Papaveroideae: a combined phylogenetic/ontogenetic approach.

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    pub_type: 杂志文章


    authors: Kadereit JW,Erbar C

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    pub_type: 杂志文章


    authors: Desrochers A,Rieseberg L

    更新日期:1998-06-01 00:00:00

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    pub_type: 杂志文章


    authors: Ackermann M,Achatz M,Weigend M

    更新日期:2008-09-01 00:00:00

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    authors: Armbruster WS,Mulder CP,Baldwin BG,Kalisz S,Wessa B,Nute H

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    authors: Endo Y

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    authors: López-Carretero A,Boege K,Díaz-Castelazo C,Domínguez Z,Rico-Gray V

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  • Morphology and affinities of an Early Cretaceous Ephedra (Ephedraceae) from China.

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    authors: Zomlefer WB,Williams NH,Whitten WM,Judd WS

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  • Hughmillerites vancouverensis sp. nov. and the Cretaceous diversification of Cupressaceae.

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    authors: Kwiatkowska D

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    pub_type: 杂志文章


    authors: Setoguchi H,Watanabe I

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    journal_title:American journal of botany

    pub_type: 杂志文章


    authors: Lersten NR,Horner HT

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    journal_title:American journal of botany

    pub_type: 杂志文章


    authors: Gregg KB

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    pub_type: 杂志文章


    authors: Cameron KM,Chase MW,Whitten WM,Kores PJ,Jarrell DC,Albert VA,Yukawa T,Hills HG,Goldman DH

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    journal_title:American journal of botany

    pub_type: 杂志文章


    authors: Sexton GJ,Frere CH,Dieters MJ,Godwin ID,Prentis PJ

    更新日期:2010-11-01 00:00:00

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    journal_title:American journal of botany

    pub_type: 杂志文章


    authors: Carlquist S,Schneider EL

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