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Light-dependent associations of germination timing with subsequent life-history traits and maternal habitats for 476 angiosperm species of the eastern Tibetan Plateau grasslands

Published online by Cambridge University Press:  14 July 2014

Chunhui Zhang ,
Kun Liu ,
Wei Qi ,
Zhen Ma  and
Guozhen Du
Chunhui Zhang
Affiliation:
State Key Laboratory of Grassland Agro-ecosystems, School of Life Sciences, Lanzhou University, Lanzhou, Gansu730000, China
Kun Liu
Affiliation:
State Key Laboratory of Grassland Agro-ecosystems, School of Life Sciences, Lanzhou University, Lanzhou, Gansu730000, China
Wei Qi
Affiliation:
State Key Laboratory of Grassland Agro-ecosystems, School of Life Sciences, Lanzhou University, Lanzhou, Gansu730000, China
Zhen Ma
Affiliation:
Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, Qinghai810008, China
Guozhen Du*
Affiliation:
State Key Laboratory of Grassland Agro-ecosystems, School of Life Sciences, Lanzhou University, Lanzhou, Gansu730000, China
*
*Correspondence E-mail: [email protected]
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Abstract

Germination timing is a key transition of life history. It not only links subsequent life-history traits, such as plant height and flowering time, but also provides a link to the previous generation through the influence of the maternal environment. Environmental factors may mediate these key links, and consequences of this process may influence species regeneration and dispersal. However, little is known about how environmental factors mediate these key links. Here, germination timing under high (natural light) and low light treatments was estimated for 476 angiosperm species of the eastern Tibetan Plateau grasslands. Furthermore, we used standard (std) and phylogenetic (phy) comparative methods to test if germination timing was associated with plant height, flowering time and maternal habitats under both light treatments. Germination timing was positively correlated with plant height only in low light in std-methods. Germination timing was associated with onset of flowering in both light treatments in std-methods, but only in low light when using phy-methods. Germination timing was positively correlated with elevation only in low light when using both comparative methods. Germination timing was correlated with water in maternal habitat only in high light when using both comparative methods. Germination timing was associated with light in maternal habitat in both light treatments in std-methods, but only in high light when using phy-methods. In summary, light-dependent associations of germination timing with subsequent life-history traits and maternal habitats may influence the probability of plant species life-cycle completion and influence distribution and dispersal of plant species in natural plant communities.

Keywords

communityelevationflowering timelife cyclephylogenetic comparative methodsplant height
Type
Research Papers
Information
Seed Science Research , Volume 24 , Issue 3 , September 2014 , pp. 207 - 215
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Copyright
Copyright © Cambridge University Press 2014 

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References

Baskin, C.C. and Baskin, J.M. (2001) Seeds: ecology, biogeography, and evolution of dormancy and germination. San Diego, Elsevier Press.Google Scholar
Baskin, J.M. and Baskin, C.C. (2003) Classification, biogeography, and phylogenetic relationships of seed dormancy. pp. 517–544 in Smith, R.D.; Dickie, J.B.; Linnington, S.H. (Eds) Seed conservation: Turning science into practice. Kew, UK, The Royal Botanic Gardens.Google Scholar
Bell, C.D., Soltis, D.E. and Soltis, P.S. (2010) The age and diversification of the angiosperms re-revisited. American Journal of Botany 97, 1296–1303.Google Scholar
Bierhuizen, J.F. and Wagenvoort, W.A. (1974) Some aspects of seed germination in vegetables. I. The determination and application of heat sums and minimum temperature for germination. Scientia Horticulturae 2, 213–219.CrossRefGoogle Scholar
Bliss, L.C. (1971) Arctic and alpine plant life cycles. Annual Review of Ecology, Evolution, and Systematics 2, 405–438.Google Scholar
Chiang, G.C., Barua, D., Kramer, E.M., Amasino, R.M. and Donohue, K. (2009) Major flowering time gene, FLOWERING LOCUS C, regulates seed germination in Arabidopsis thaliana . Proceedings of the National Academy of Sciences, USA 106, 11661–11666.CrossRefGoogle ScholarPubMed
Connell, J.H. and Slatyer, R.O. (1977) Mechanisms of succession in natural communities and their role in community stability and organization. American Naturalist 111, 1119–1144.CrossRefGoogle Scholar
Donohue, K. (2009) Completing the cycle: maternal effects as the missing link in plant life histories. Philosophical Transactions of the Royal Society of London B 364, 1059–1074.CrossRefGoogle ScholarPubMed
Donohue, K., Rubio de Casas, R., Burghardt, L., Kovach, K. and Willis, C.G. (2010) Germination, postgermination adaptation, and species ecological ranges. Annual Review of Ecology, Evolution, and Systematics 41, 293–319.CrossRefGoogle Scholar
Fenner, M. (2000) Seeds: the ecology of regeneration in plant communities (2nd edition). Wallingford, CABI.CrossRefGoogle Scholar
Fenner, M. and Thompson, K. (2005) The ecology of seeds. Cambridge, Cambridge University Press.Google Scholar
Flora China Editing Group (2004) Flora of China. Beijing, Chinese Academy of Sciences.Google Scholar
Freckleton, R.P., Harvey, P.H. and Pagel, M. (2002) Phylogenetic analysis and comparative data: a test and review of evidence. American Naturalist 160, 712–726.CrossRefGoogle Scholar
Galloway, L.F. (2005) Maternal effects provide phenotypic adaptation to local environmental conditions. New Phytologist 166, 93–100.Google Scholar
Galloway, L.F. and Burgess, K.S. (2012) Artificial selection on flowering time: influence on reproductive phenology across natural light environments. Journal of Ecology 100, 852–861.CrossRefGoogle Scholar
Garcia-Huidobro, J., Monteith, J.L. and Squire, G.R. (1982) Time, temperature and germination of pearl millet (Pennisetum typhoides S. & H.) I. Constant temperature. Journal of Experimental Botany 33, 288–296.Google Scholar
Hautier, Y., Niklaus, P.A. and Hector, A. (2009) Competition for light causes plant biodiversity loss after eutrophication. Science 324, 636–638.CrossRefGoogle ScholarPubMed
Hendry, G.A.F. and Grime, J.P. (1993) Comparative plant ecology: a laboratory manual. London, Chapman & Hall.Google Scholar
Körner, C. (2003) Alpine plant life: functional plant ecology of high mountain ecosystems (2nd edition). Berlin, Springer-Verlag.Google Scholar
Liu, K., Baskin, J.M., Baskin, C.C., Bu, H., Du, G. and Ma, M. (2013) Effect of diurnal fluctuating versus constant temperatures on germination of 445 species from the eastern Tibet Plateau. PLoS One 8, e69364.Google Scholar
Mazer, S.J. (1989) Ecological, taxonomic, and life history correlates of seed mass among Indiana dune angiosperms. Ecological Monographs 59, 153–175.Google Scholar
Moles, A.T., Warton, D.I., Warman, L., Swenson, N.G., Laffan, S.W., Zanne, A.E., Pitman, A., Hemmings, F.A. and Leishman, M.R. (2009) Global patterns in plant height. Journal of Ecology 97, 923–932.Google Scholar
Nevo, E. (1997) Evolution in action across phylogeny caused by microclimatic stresses at ‘Evolution Canyon’. Theoretical Population Biology 52, 231–243.CrossRefGoogle ScholarPubMed
Norden, N., Daws, M.I., Antoine, C., Gonzalez, M.A., Garwood, N.C. and Chave, J. (2009) The relationship between seed mass and mean time to germination for 1037 tree species across five tropical forests. Functional Ecology 23, 203–210.CrossRefGoogle Scholar
Orme, D., Freckleton, R., Thomas, G., Petzoldt, T., Fritz, S., Isaac, N. and Pearse, W. (2011) Caper: Comparative Analyses of Phylogenetics and Evolution in R. R package version 0.5. Available at http://CRAN.R-project.org/package = caper (accessed 8 July 2014).Google Scholar
Pagel, M. (1999) Inferring the historical patterns of biological evolution. Nature 401, 877–884.Google Scholar
Paradis, E., Claude, J. and Strimmer, K. (2004) APE: analyses of phylogenetics and evolution in R language. Bioinformatics 20, 289–300.Google Scholar
Qi, W., Guo, S., Chen, X., Cornelissen, J.H., Bu, H., Du, G., Cui, X., Li, W. and Liu, K. (2014) Disentangling ecological, allometric and evolutionary determinants of the relationship between seed mass and elevation: insights from multiple analyses of 1355 angiosperm species on the eastern Tibetan Plateau. Oikos 123, 23–32.Google Scholar
Revell, L.J. and Harrison, A.S. (2008) PCCA: a program for phylogenetic canonical correlation analysis. Bioinformatics 24, 1018–1020.Google Scholar
Smith, S.A., Beaulieu, J.M. and Donoghue, M.J. (2010) An uncorrelated relaxed-clock analysis suggests an earlier origin for flowering plants. Proceedings of the National Academy of Sciences, USA 107, 5897–5902.CrossRefGoogle ScholarPubMed
Stevens, P.F. (2001 onwards) Angiosperm Phylogeny Website. Version 12, July 2012 [and more or less continuously updated since]. Available at http://www.mobot.org/MOBOT/research/APweb/ (accessed 31 July 2013).Google Scholar
ten Brink, D.-J., Hendriksma, H.P. and Bruun, H.H. (2013) Habitat specialization through germination cueing: a comparative study of herbs from forests and open habitats. Annals of Botany 111, 283–292.CrossRefGoogle ScholarPubMed
Van Couwenberghe, R., Gégout, J.-C., Lacombe, E. and Collet, C. (2013) Light and competition gradients fail to explain the coexistence of shade-tolerant Fagus sylvatica and shade-intermediate Quercus petraea seedlings. Annals of Botany 112, 1421–1430.Google Scholar
Wang, S., Ruan, H. and Wang, B. (2009) Effects of soil microarthropods on plant litter decomposition across an elevation gradient in the Wuyi Mountains. Soil Biology and Biochemistry 41, 891–897.CrossRefGoogle Scholar
Webb, C.O. and Donoghue, M.J. (2005) Phylomatic: tree assembly for applied phylogenetics. Molecular Ecology Notes 5, 181–183.Google Scholar
Webb, C.O., Ackerly, D.D. and Kembel, S.W. (2008) Phylocom: software for the analysis of phylogenetic community structure and trait evolution. Bioinformatics 24, 2098–2100.CrossRefGoogle ScholarPubMed
Zhang, C., Willis, C.G., Burghardt, T.L., Qi, W., Liu, K., Souza-Filho, P.R.M., Ma, Z. and Du, G. (2014) The community-level effect of light on germination timing in relation to seed mass: a source of regeneration niche differentiation. New Phytologist (in press).Google Scholar
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