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Chem Biodivers

Title:		Phenotypic Variations in the Foliar Chemical Profile of Persea americana Mill. cv. Hass
Author(s):		Garcia-Rodriguez YM; Torres-Gurrola G; Melendez-Gonzalez C; Espinosa-Garcia FJ;
Address:		"Instituto de Investigaciones en Ecosistemas y Sustentabilidad, Universidad Nacional Autonoma de Mexico, Campus Morelia, Antigua Carretera a Patzcuaro 8701, Col. Ex-Hda. San Jose de la Huerta, Morelia, Michoacan, C.P. 58089, Mexico"
Journal Title:		Chem Biodivers
Year:		2016
Volume:		20161129
Issue:		12
Page Number:		1767 - 1775
DOI:		10.1002/cbdv.201600169
ISSN/ISBN:		1612-1880 (Electronic) 1612-1872 (Linking)
Abstract:		"The Hass avocado tree Persea americana cv. Hass was derived from a single hybrid tree of P. americana var. drymifolia and P. americana var. guatemalensis, and it is propagated clonally by grafting. This cultivar is the most widely planted in the world but its profile of secondary metabolites has been studied rarely despite of its importance in plant protection. We illustrate the variability of the volatilome of mature leaves by describing the average chemical composition and the phenotypic variability found in 70 trees. Contrary to the uniformity expected in the Hass cultivar, high variability coefficients were found for most of the 36 detected foliar volatile compounds; furthermore we found six chemotypes grouping the foliar phenotypes of the sampled trees using hierarchical cluster analysis. About 48% of trees were grouped in one chemotype; five chemotypes grouped the remaining trees. The compounds that determined these chemotypes were: estragole, alpha-farnesene, beta-caryophyllene, germacrene D, alpha-cubebene and eugenol. This striking variation in a cultivar propagated clonally is discussed in terms of somatic mutation"
Keywords:		Cluster Analysis Gas Chromatography-Mass Spectrometry Persea/*chemistry/*classification Phenotype Plant Leaves/chemistry Volatile Organic Compounds/*analysis/chemistry Persea americana Chemotypes Hass avocado Intraclonal variation Phenylpropanoids Terpeno;
Notes:		"MedlineGarcia-Rodriguez, Yolanda Magdalena Torres-Gurrola, Guadalupe Melendez-Gonzalez, Claudio Espinosa-Garcia, Francisco J eng Switzerland 2016/08/10 Chem Biodivers. 2016 Dec; 13(12):1767-1775. doi: 10.1002/cbdv.201600169. Epub 2016 Nov 29"