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Hypseocharis reveals early history of physical dormancy in Geraniaceae

Published online by Cambridge University Press:  23 December 2016

Filip Vandelook ,
Ann Van de Vyver  and
Edgar E. Gareca
Filip Vandelook*
Affiliation:
Botanic Garden Meise, Nieuwelaan 38, B-1860 Meise, Belgium
Ann Van de Vyver
Affiliation:
Botanic Garden Meise, Nieuwelaan 38, B-1860 Meise, Belgium
Edgar E. Gareca
Affiliation:
Centro de Biodiversidad y Genética, Universidad Mayor de San Simón, Casilla 538, Cochabamba, Bolivia
*
*Correspondence Email: [email protected]
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Abstract

Hypseocharis is a genus endemic to the high Andes and sister to all other Geraniaceae genera. Regarding its basal position in Geraniaceae evolution, its germination ecology can provide important insights into the early evolution of physical dormancy. Imbibition tests performed on seeds of two Hypseocharis populations from Bolivia indicate that their seeds indeed have physical dormancy like all other Geraniaceae. These results indicate that physical dormancy in Geraniaceae evolved during the Eocene before the uplift of the Andes mountains and before the events that led to the cross-Atlantic disjunct distribution of Geraniacae.

Keywords

endemicGeraniaceaeHypseocharisphysical dormancyscarificationtropical Andes
Type
Short Communication
Information
Seed Science Research , Volume 27 , Issue 1 , March 2017 , pp. 39 - 42
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Copyright
Copyright © Cambridge University Press 2016 

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Footnotes

† Present address: Carrera de Biología y Comité Académico Doctoral, Universidad Mayor Real y Pontificia de San Francisco Xavier de Chuquisaca, c. Aniceto Arce 46, Sucre, Bolivia.

References

Baskin, C.C. and Baskin, J.M. (2014) Seeds: Ecology, Biogeography, and Evolution of Dormancy and Germination. Amsterdam, Elsevier.Google Scholar
Boesewinkel, F.D. (1988) The seed structure and taxonomic relationships of Hypseocharis Remy. Acta Botanica Neerlandica 37, 111–120.Google Scholar
Cronquist, A. (1981) An Integrated System of Classification of Flowering Plants. New York, Columbia University Press.Google Scholar
D'hondt, B., Brys, R. and Hoffmann, M. (2010) The incidence, field performance and heritability of non-dormant seeds in white clover (Trifolium repens L.). Seed Science Research 20, 169–177.Google Scholar
Fiz, O., Vargas, P., Alarcón, M., Aedo, C., García, J.L. and Aldasoro, J.J. (2008) Phylogeny and historical biogeography of Geraniaceae in relation to climate changes and pollination ecology. Systematic Botany 33, 326–342.CrossRefGoogle Scholar
Jayasuriya, K.M.G., Athugala, Y.S., Wijayasinghe, M.M., Baskin, J.M., Baskin, C.C. and Mahadevan, N. (2015) The crypsis hypothesis: a stenopic view of the selective factors in the evolution of physical dormancy in seeds. Seed Science Research 25, 127–137.Google Scholar
Meisert, A. (2002) Physical dormancy in Geraniaceae seeds. Seed Science Research 12, 121–128.CrossRefGoogle Scholar
Oltmann, O. (1971) Pollenmorphologisch-systemastische Untersuchungen innerhalb der Geraniales. Dissertationes Botanicae 11, 163.Google Scholar
Palazzesi, L., Gottschling, M., Barreda, V. and Weigend, M. (2012) First Miocene fossils of Vivianiaceae shed new light on phylogeny, divergence times, and historical biogeography of Geraniales. Biological Journal of the Linnean Society 107, 67–85.Google Scholar
Paulsen, T.R., Colville, L., Kranner, I., Daws, M.I., Högstedt, G., Vandvik, V. and Thompson, K. (2013) Physical dormancy in seeds: a game of hide and seek? New Phytologist 198, 496–503.Google Scholar
Paulsen, T.R., Colville, L., Daws, M.I., Eliassen, S., Högstedt, G., Kranner, I., Thompson, K. and Vandvik, V. (2015) The crypsis hypothesis explained: a reply to Jayasuriya et al. (2015). Seed Science Research 25, 402–408.CrossRefGoogle Scholar
Price, R.A. and Palmer, J.D. (1993) Phylogenetic relationships of the Geraniaceae and Geraniales from rbcL sequence comparisons. Annals of the Missouri Botanical Garden 80, 661–671.CrossRefGoogle Scholar
Slanis, A.C. and Grau, A. (2001) El genero Hypseocharis (Oxalidaceae) en la Argentina. Darwinia 39, 343–352.Google Scholar
Van Assche, J.A. and Vandelook, F. (2006) Germination ecology of eleven species of Geraniaceae and Malvaceae, with special reference to the effects of drying seeds. Seed Science Research 16, 283–290.CrossRefGoogle Scholar
Vandelook, F. and Van Assche, J.A. (2010) A combined physical and physiological dormancy controls seasonal seedling emergence of Geranium robertianum . Plant Biology 12, 765–771.Google Scholar