Phylogenetic analysis of some members of the subgenus Persea (Persea, Lauraceae)

Cruz-Maya, María Edith; Barrientos-Priego, Alejandro F.; Zelaya-Molina, Lily X.; O, José Luis Rodríguez-de la; Reyes-Alemán, Juan Carlos

doi:10.5154/r.rchsh.2017.12.038

Cited by 2 publications

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“…The intergenic spacer psbA-trnH was highly successful in amplification and the intermediate reactions in sequencing. It is considered a robust marker that allows PCR amplification from diverse plant taxa [49] and special phylogenetic studies in Lauraceae [51][52][53][54].…”

Section: Dna Barcode Analysismentioning

confidence: 99%

Essential Oil Composition and DNA Barcode and Identification of Aniba species (Lauraceae) Growing in the Amazon Region

et al. 2021

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Lauraceae species are widely represented in the Amazon, presenting a significant essential oil yield, large chemical variability, various biological applications, and high economic potential. Its taxonomic classification is difficult due to the accentuated morphological uniformity, even among taxa from a different genus. For this reason, the present work aimed to find chemical and molecular markers to discriminate Aniba species collected in the Pará State (Brazil). The chemical composition of the essential oils from Aniba canelilla, A. parviflora, A. rosaeodora, and A. terminalis were grouped by multivariate statistical analysis. The major compounds were rich in benzenoids and terpenoids such as 1-nitro-2-phenylethane (88.34–70.85%), linalool (15.2–75.3%), α-phellandrene (36.0–51.8%), and β-phellandrene (11.6–25.6%). DNA barcodes were developed using the internal transcribed spacer (ITS) nuclear region, and the matK, psbA-trnH, rbcL, and ycf1 plastid regions. The markers psbA-trnH and ITS showed the best discrimination for the species, and the phylogenic analysis in the three- (rbcL + matK + trnH − psbA and rbcL + matK + ITS) and four-locus (rbcL + matK + trnH − psbA + ITS) combination formed clades with groups strongly supported by the Bayesian inference (BI) (PP:1.00) and maximum likelihood (ML) (BS ≥ 97%). Therefore, based on statistical multivariate and phylogenetic analysis, the results showed a significant correlation between volatile chemical classes and genetic characteristics of Aniba species.

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Section: Dna Barcode Analysismentioning

confidence: 99%

Essential Oil Composition and DNA Barcode and Identification of Aniba species (Lauraceae) Growing in the Amazon Region

et al. 2021

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Variability of Cinnamomum (Lauraceae) Leaf Architecture in Relation to Climatic and Historical Constraints: Implications for Paleoclimatic Studies

Tanrattana

Bardin

Boura

et al. 2020

International Journal of Plant Sciences

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Premise of research. Fossil leaves are commonly used as proxies for continental paleoclimate reconstruction. In particular, temperature and precipitation variables are derived from taxon-free methods using only fossil leaf morphology. Although there is a general relationship between leaf form and climate at a global scale, possible differences between and within angiosperm families remain little explored.Methodology. In this article, we analyzed the influence of phylogenetic relatedness and climate on leaf architecture in 30 species of Cinnamomum (Lauraceae). Nineteen morphological features were selected and documented on the basis of digitized herbarium specimens. Repeatability was measured for all traits. Phylogenetic signal was measured using Blomberg's K. The relationship between morphological variables and climatic variables was investigated using univariate and multivariate statistical approaches.Pivotal results. Our analysis revealed that phylogenetic signal was mainly observed in traits linked to the venation pattern. Size-and shape-related variables are more influenced by climatic parameters than by historical constraints. Cinnamomum leaf morphology is significantly correlated with mean annual temperature and temperature seasonality.Conclusions. Shape and size are representative of convergent temperature-related characters in this genus. Our analysis validates the use of this genus for taxon-free paleoclimatic reconstruction methods relying on such data. The absence of phylogenetic signal in size-and shape-related traits contrasts with earlier studies on distantly related taxa and confirms that historical constraint on leaf morphology is variable among families.

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Phylogenetic analysis of some members of the subgenus Persea (Persea, Lauraceae)

Cited by 2 publications

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Essential Oil Composition and DNA Barcode and Identification of Aniba species (Lauraceae) Growing in the Amazon Region

Essential Oil Composition and DNA Barcode and Identification of Aniba species (Lauraceae) Growing in the Amazon Region

Variability of Cinnamomum (Lauraceae) Leaf Architecture in Relation to Climatic and Historical Constraints: Implications for Paleoclimatic Studies

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