Genetic and environmental influence on essential oil composition of Eugenia dysenterica
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Data
2010-04
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Resumo
The composition of the essential oil of Eugenia dysenterica collected from wild populations
in Senador Canedo (SC) and Campo Alegre de Goiás (CA), as well as from cultivated plants
growing adjacently from seeds at the same sites has indicated the presence of two oil clusters
related to sampling origin. Cluster I included only SC samples, either from the cultivated
population (subcluster IA) with high percentages of a-pinene (5.9-13%), b-pinene (6.6-14%)
and (Z)‑b‑ocimene (0-13%), or from the wild population (subcluster IB) with high contents of
g-cadinene (21-34%), limonene (1.3-28%) and caryophyllene oxide (1.5-14%). In cluster II,
which included wild and cultivated samples originating from CA seeds, the major constituents
were b-caryophyllene (15-44%), d-cadinene (6.4-21%) and a-copaene (4.4-14%). The canonical
correlation revealed that limonene, g-cadinene, caryophyllene oxide, Zn, Cu, Fe, Mn, and mean
monthly temperature and precipitation values were quite strongly related to SC wild samples
(subcluster IB), whereas (Z)-b-ocimene, a-copaene, b-caryophyllene, a-humulene, d-cadinene,
and P were related to CA wild samples as well as to all cultivated samples regardless of seed
origin. The chemovariation might be genetically determined. In addition, SC samples showed a
clear environmental influence.
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Eugenia dysenterica, Essential oil, Chemical variability, Seasonal influence, Canonical correlation analysis
Citação
DUARTE, Alessandra R. et al. Genetic and environmental influence on essential oil composition of Eugenia dysenterica. Journal of the Brazilian Chemical Society, Campinas, v. 21, n. 8, p. 1459-1467, Apr. 2010.