Publicado 2011-10-01
Palabras clave
- leaf morphometrics,
- multivariate analysis,
- natural populations,
- plasticity
- análisis multivariado,
- morfometría foliar,
- plasticidad,
- poblaciones naturales
Resumen
Se evaluó la variación fenotípica en cuatro poblaciones naturales de Parrotia persica (Hamamelidaceae), una especie endémica considerada como un fósil viviente del bosque hircaniano, a través de un análisis morfométrico y multivariado de las hojas. Asimismo, se estudiaron la plasticidad y la asimetría foliar fluctuante (AFF). Nuestros hallazgos mostraron claramente una divergencia significativa entre sitios. El tamaño más pequeño de la lámina foliar, la plasticidad más grande y los valores más pequeños de AFF fueron registrados en los sitios más xéricos de la parte oriental (Ghorogh y Daland), por lo que parece que estos sitios están sujetos a un mayor estrés ambiental. Obtuvimos resultados interesantes, pero hace falta realizar nuevos estudios de la diversidad de aloenzimas y ADN.
Citas
- Akhani, H., M. Djamali, A. Ghorbanalizadeh & E. Ramezani. 2010. Plant biodiversity of Hyrcanian relict forests, N Iran: an overview of the flora, vegetation, palaeoecology and conservation. Pak. J. Bot., Special Issue (S.I. Ali Festschrift) 42: 231-258.
- Alados, C. L., T. Navarro, J. Escós, B. Cabezudo & J. M. Emlen. 2001. Translational and fluctuating asymmetry as tools to detect stress in stress-adapted and nonadapted plants. Int. J. Plant Sci. 162(3): 607-616.
- Alados, C. L., Y. Pueyo, M. L. Giner, T. Navarro, J. Escós, F. Barroso, B. Cabezudo & J. M. Emlen. 2003. Quantitative characterization of the regressive ecological succession by fractal analysis of plant spatial patterns. Ecol. Model. 163(1-2): 1-17.
- Ashton, P. M. S., L. P. Olander, G. P. Berlyn, R. Thadani & I. R. Cameron. 1998. Change in leaf structure in relation to crown position and tree size of Betula papyrifera within fire-origin stands of interior cedar-hemlock. Can. J. Bot. 76(7): 1189-1187.
- Blue, M. P. & R. J. Jensen. 1988. Positional and seasonal variation in oak (Quercus: Fagaceae) leaf morphology. Am. J. Bot. 75: 939-947.
- Bradshaw, A. D. 1965. Evolutionary significance of phenotypic plasticity in plants. Adv. Genet. 13:115-155.
- Browicz, K. 1982. Chorology of trees and shrubs in south west Asia and adjacent regions. Vol. 1. Polish Scientific Publishers. Warszawa-Poznań. 172 pp.
- Bruschi, P. 2010. Geographical variation in morphology of Quercus petraea (Matt.) Liebl. as related to drought stress. Plant Biosyst. 144(1): 298-307.
- Bruschi, P., P. Grossoni & F. Bussotti. 2003. Within-and among-tree variation in leaf morphology of Quercus petraea (Matt.) Liebl. natural populations. Trees 17(2): 164-172.
- Clarke, G. M. 1993. The genetic basis of developmental stability. I. Relationships between stability, heterozygosity and genomic coadaptation. Genetica 89: 15-23.
- Dickinson, T. A., W. H. Parker & R. E. Strauss. 1987. Another approach to leaf shape comparisons. Taxon 36(1): 1-20.
- Fair, J. M. & D. D. Breshears. 2005. Drought stress and fluctuating asymmetry in Quercus undulata leaves: confounding effects of absolute and relative amounts of stress? J. Arid Environ. 62(2): 235-249.
- Frampton, C. M. & J. M. Ward. 1990. The use of ratio variables in systematics. Taxon 39(4): 586-592.
- Freeman D. C., J. H. Graham, D. W. Byrd, E. D. McArthur & W. A. Turner. 1995. Narrow hybrid zone between two subspecies of big sagebrush, Artemisia tridentata (Asteraceae). III. Developmental instability. Am. J. Bot. 82(9): 1144-1152.
- Graham, J. H., S. Raz, H. Hel-Or & E. Nevo. 2010. Fluctuating asymmetry: methods, theory, and applications. Symmetry 2(2): 466-540.
- Geeske, J., G. Aplet & M. P. Vitousek. 1994. Leaf morphology along environmental gradients in Hawaiian Metrosideros polymorpha. Biotropica 26(1): 17-22.
- Hódar, J. A. 2002. Leaf fluctuating asymmetry of Holm oak in response to drought under contrasting climatic conditions. J. Arid Environ. 52(2): 233-243.
- Kozlov, M. V., B. J. Wilsey, J. Koricheva & E. Haukioja. 1996. Fluctuating asymmetry of birch leaves increases under pollution impact. J. Appl. Ecol. 33(6): 1489-1495.
- Leary, R. F. & F. W. Allendorf. 1989. Fluctuating asymmetry as an indicator of stress: implications for conservation biology. Trends Ecol. Evol. 4(7): 214-217.
- Llorens, L., J. Peñuelas & B. Emmet. 2002. Developmental instability and gas exchange responses of a heathland shrub to experimental drought and warming. Int. J. Plant Sci. 163(6): 959-967.
- McPherson, S., D. Eamus & B. R. Murray. 2004. Seasonal impacts on leaf attributes of several tree species growing in three diverse ecosystems of south-eastern Australia. Austr. J. Bot. 52: 293-301.
- Mohajer, M. R. 2007. Silviculture. University of Tehran Press. Tehran. 387 pp.
- Møller, A. P. & J. P. Swaddle. 1997. Asymmetry, developmental stability and evolution. Oxford University Press. Oxford. 291 pp.
- Mosaddegh, A. 2006. Geography of world forest. University of Tehran Press. Teheran. 404 pp.
- Palmer, A. R. & C. Strobeck. 1986. Fluctuating asymmetry: measurement, analysis, patterns. Ann. Rev. Ecol. Syst. 17: 391-421.
- Palmer, A. R. 1994. Fluctuating asymmetry analyses: a primer. In: Markow, T. A. (ed.). Developmental instability: its origins and evolutionary implications. Kluwer. Dordrecht, Netherlands. pp. 335-364.
- Palmer, A. R. & C. Strobeck. 1997. Fluctuating asymmetry and developmental stability: heritability of observable variation vs. heritability of inferred cause. J. Evolution. Biol. 10(1): 39-49.
- Velázquez-Rosas, N., J. Meave & S. Vázquez-Santana. 2002. Elevational variation of leaf traits in montane rain forest tree species at La Chinantla, México. Biotropica 34(4): 534-546.
- Valkama, J. & M. V. Kozlov. 2001. Impact of climatic factors on the developmental stability of mountain birch growing in a contaminated area. J. Appl. Ecol. 38: 665-673.
- Wilsey, B. J., E. Haukioja, J. Koricheva & M. Sulkinoja. 1998. Leaf fluctuating asymmetry increases with hybridization and elevation in tree-line birches. Ecology 79(6): 2092-2099.
- Xu, F., W. Guo, W. Xu, Y. Wei & R. Wang. 2009. Leaf morphology correlates with water and light availability: what consequences for simple and compound leaves? Prog. Nat. Sci. 19(12): 1789-1798.
- Yousefzadeh, H., M. Tabari, M. Akbarinia, M. R. Akbarian & F. Bussoti. 2010. Morphological plasticity of Parrotia persica leaves in eastern of Hyrcanain forests (Iran) is related to altitude. Nord. J. Bot. 28(3): 344-349.
- Zarafshar, M., M. Akbarinia, P. Bruschi, S. M. Hosseini, H. Yousefzadeh, M. Taieby & A. Sattarian. 2010. Phenotypic variation in chestnut (Castanea sativa Mill.) natural populations in Hyrcanian forest (north of Iran), revealed by leaf morphometrics. Folia Oecol. 37(1): 105-113.