Volatile Profiles and DNA Barcodes of Myrtaceae Species with Occurrence in the Brazilian Amazon.

Autor: Dos Santos EL; Programa de Pós-graduação em Química, UFPA, Universidade Federal do Pará, Belém, 66075-900, Brazil., Xavier JKAM; Programa de Pós-graduação em Química, UFPA, Universidade Federal do Pará, Belém, 66075-900, Brazil., Galvão PLN; Programa de Bolsas de Iniciação Científica, UFPA, Universidade Federal do Pará, Belém, 66075-900, Brazil., Carneiro Nunes AR; Centro de Genômica e Biologia de Sistemas, UFPA, Universidade Federal do Pará, Belém, 66075-900, Brazil., Alegria OVC; Centro de Genômica e Biologia de Sistemas, UFPA, Universidade Federal do Pará, Belém, 66075-900, Brazil., Moreira ECO; Instituto de Estudos em Saúde e Biológicas, Universidade Federal do Sul e Sudeste do Pará, Marabá, 68501-970, Brazil., Maia JGS; Programa de Pós-graduação em Química, UFPA, Universidade Federal do Pará, Belém, 66075-900, Brazil., Setzer WN; Aromatic Plant Research Center, Lehi, UT 84043, USA., Figueiredo PLB; Laboratório de Química de Produtos Naturais, UEPA, Universidade do Estado do Pará, Belém, 66087-662, Brazil., da Silva JKR; Programa de Pós-graduação em Química, UFPA, Universidade Federal do Pará, Belém, 66075-900, Brazil.
Jazyk: angličtina
Zdroj: Chemistry & biodiversity [Chem Biodivers] 2024 Jul; Vol. 21 (7), pp. e202400388. Date of Electronic Publication: 2024 Jun 27.
DOI: 10.1002/cbdv.202400388
Abstrakt: Myrtaceae family includes many species with taxonomic challenges, making it one of the most complex families to identify. This study used DNA barcoding to find molecular markers for species authentication based on the Myrtaceae family's chemical composition and genetic diversity. Essential oils and genetic material were extracted from the leaves of six different species: Eugenia uniflora, E. patrisii, Myrcia splendens, Psidium guajava, P. guineense, and Psidium sp. The samples were analyzed based on compound classes and grouped into two categories. Group I included samples with high amounts of oxygenated sesquiterpenes (3.69-76.05 %) and fatty acid derivatives (0.04-43.59 %), such as E. uniflora, Myrcia splendens, and E. patrisii. Group II included samples P. guajava, P. guineense, and Psidium sp., which had a significant content of monoterpene hydrocarbons (0.69-72.35 %), oxygenated sesquiterpenes (8.06-68.1 %), phenylpropanoids (0.45-22.59 %), and sesquiterpene hydrocarbons (0.27-21.84 %). The PsbA-trnH gene sequences had a high genetic variability, allowing the species to be distinguished. A phylogenetic analysis showed two main clusters with high Bootstrap values corresponding to the subtribes Eugeniineae, Myrciinae, and Pimentinae. The results suggest a weak correlation between genetic and chemical data in these Myrtaceae species.
(© 2024 Wiley-VHCA AG, Zurich, Switzerland.)
Databáze: MEDLINE
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