Cinnamomum trivancoricum (Lauraceae) is an endemic species to India. The identification and genetic relationship of these species were studied based mainly on volatile oil constituents and their retention time. The color of essential oils was brown and the number of components of oils that were identified from Kodaiyar, Karaiyar, Thenmalai and Kodaikkanal samples were 22, 20, 19 and 18 which accounts 85.6%, 85.4%, 91.26% and 85% of their contents, respectively. Among them, terpinen-4-ol, trans-cinnamaldehyde, a-terpineol, and β-caryophyllene were the major compounds. A Dendrogram based on Jaccard’s similarity coefficients indicated that the distribution pattern of the four accessions was coherent with their geographical origins. Most of the genetic variation (volatile oils Retention time data) occurred among clones within each region. However, the very close relationship between Kodaiyar and Thenmalai populations are statistically significant (P < 0.001). This is the first report regarding the inheritance of volatile oils elution time and their application on genetic diversity of wild populations, and it provides useful baseline data for optimizing sampling strategies in breeding. These results are important for future genetic improvement, identification, and conservation of Cinnamomum trivancoricum germplasm.
"Intra-Specific Genetic Relationship Analyses of Cinnamomum trivancoricum Based on GC-MS Volatile Oil Markers,"
1, Article 71.
Available at: http://opensiuc.lib.siu.edu/ebl/vol2008/iss1/71