Leaf anatomy of Acrocomia (Arecaceae): an additional contribution to the taxonomic resolution of a genus with great economic potential

Vianna, Suelen Alves; Carmelo-Guerreiro, Sandra M.; Noblick, Larry R.; Colombo, Carlos Augusto

doi:10.1007/s00606-016-1369-4

Cited by 25 publications

(27 citation statements)

References 29 publications

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“…All the samples of A. intumescens were assigned to cluster 6, however presented high levels of admixture with A. aculeata (cluster 5, Fig 2). A. intumescens also showed a moderate genetic differentiation with A. aculeata (F ST = 0.128, Table 1), reinforcing the close genetic relationship among both species as described by Vianna et al [1] based on leaf anatomy. Morphologically, A. intumescens is distinguished mainly by the swelling of the stipe [4].…”

Section: A Intumescenssupporting

confidence: 81%

“…The results of cluster analysis and genetic differentiation corroborated the classification of A. totai as an independent taxon based on morphological [4], anatomical [1], and molecular markers [61]. This taxonomic separation seems to be more appropriate than that proposed for Henderson et al [3], which considered all tree-sized Acrocomias as a single taxonomic group called A. aculeata.…”

Section: A Aculeatasupporting

confidence: 72%

“…It has been documented in eastern Bolivia, Paraguay, Central-west Brazil to northern Argentina [4,15]. The taxonomic distinction of the species has been demonstrated based on morphological data and geographic distribution [4], leaf anatomy [1], and fruit biometry [68]. However, A. totai is commonly regarded as A. aculeata due to the pronounced morphological similarity of both species, and because both have fruits with similar biometric and color characteristics [68].…”

Section: A Aculeatamentioning

confidence: 99%

“…The genus Acrocomia is endemic to tropical and subtropical America. This genus is one of the most taxonomically complex concerning species in the family Arecaceae [1]. Taxonomic classifications of Acrocomia are mostly limited to the description of species based on morphological and geographical distribution information.…”

Section: Introductionmentioning

confidence: 99%

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Whole-genome SNP analysis elucidates the genetic population structure and diversity of Acrocomia species

Diaz

Zucchi

Alves‐Pereira

et al. 2020

Preprint

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Acrocomia (Arecaceae) is a genus widely distributed in tropical and subtropical America that has been achieving economic interest due to the great potential of oil production of some of its species. In particular A. aculeata, due to its vocation to supply oil with the same productive capacity as the oil palm even in areas with water deficit. Although eight species are recognized in the genus, the taxonomic classification based on morphology and geographic distribution is still controversial. Knowledge about the genetic diversity and population structure of the species is limited, which has limited the understanding of the genetic relationships and the orientation of management, conservation, and genetic improvement activities of species of the genus. In the present study, we analyzed the genomic diversity and population structure of seven species of Acrocomia including 117 samples of A. aculeata covering a wide geographical area of occurrence, using single nucleotide Polymorphism (SNP) markers originated from Genotyping By Sequencing (GBS). The genetic structure of the Acrocomia species were partially congruent with the current taxonomic classification based on morphological characters, recovering the separation of the species A. aculeata, A. totai, A. crispa and A. intumescens as distinct taxonomic groups. However, the species A. media was attributed to the cluster of A. aculeata while A. hassleri and A. glauscescens were grouped together with A. totai. The species that showed the highest and lowest genetic diversity were A. totai and A. media, respectively. When analyzed separately, the species A. aculeata showed a strong genetic structure, forming two genetic groups, the first represented mainly by genotypes from Brazil and the second by accessions from Central and North American countries. Greater genetic diversity was found in Brazil when compared to the other countries. Our results on the genetic diversity of the genus are unprecedented, as is also establishes new insights on the genomic relationships between Acrocomia species. It is also the first study to provide a more global view of the genomic diversity of A. aculeata. We also highlight the applicability of genomic data as a reference for future studies on genetic diversity, taxonomy, evolution and phylogeny of the Acrocomia genus, as well as to support strategies for the conservation, exploration and breeding of Acrocomia species and in particular A. aculeata.

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Section: A Intumescenssupporting

confidence: 81%

Section: A Aculeatasupporting

confidence: 72%

Section: A Aculeatamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Whole-genome SNP analysis elucidates the genetic population structure and diversity of Acrocomia species

Diaz

Zucchi

Alves‐Pereira

et al. 2020

Preprint

Self Cite

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“…Because of this, taxonomy of Arecaceae traditionally has also been based on anatomical aspects of the organs, mainly of the leaf blade ( Tomnlinson 1961 ; Tomnlinson et al 2011 ; Noblick 2013 , 2014 ; Martins et al 2015 ; Sant’Anna-Santos et al 2015 ; Pinedo et al 2016 ; Vianna et al 2017 ). The leaf blade has provided useful characters to discriminate between species in some genera of the family, such as Oenocarpus ( Silva and Potiguara 2008 ; Tomnlinson et al 2011 ), Syagrus ( Glassman 1970 ; Tomnlinson et al 2011 ; Noblick 2013 ; Noblick et al 2014 ), Allagoptera ( Tomnlinson et al 2011 ; Martins et al 2015 ; Pinedo et al 2016 ), Parajubaea ( Meerow et al 2009 ; Tomnlinson et al 2011 ), Acrocomia ( Vianna et al 2017 ) and even Butia ( Noblick 2014 ; Sant’Anna-Santos et al 2015 ). A detailed comparative study of the leaf anatomy of Butia provided useful characters that corroborated the split of B. odorata from B. capitata and aid in their distinction ( Sant’Anna-Santos et al 2015 ).…”

Section: Introductionmentioning

confidence: 99%

Does leaf anatomy aid in species identification of Butia (Arecaceae)?

et al. 2018

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Our paper presents reliable anatomical characters of the pinnae that allowed the identification of the recognized species of Butia through a purely anatomical key, in which specific identification is performed by a set of up to five characters. Leaf anatomy, already used to support new taxa in related genera, can also be useful to validate questionable Butia species and differentiate between similar species, but surprisingly does not reflect the proposed phylogenetic relationship between species of this genus.

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Biometric variability of inflorescence and flower traits among ex situ accessions of the neotropical oilseed palm Acrocomia Mart.

Meyer,

Hilger,

Kuki

et al. 2024

Ecology and Evolution

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The oilseed palm genus Acrocomia is suitable for sustainable oil production in South America. The high phenotypic diversity of wild populations poses a challenge for the delimitation of the genus. Comparing the inflorescence architecture, a first‐order panicle, and staminate and pistillate flower traits could be a valuable tool in resolving the taxonomic disarray. Thus, this study aims to characterize the differences in the inflorescence architecture and floral structures of three common and economically significant Acrocomia species: A. aculeata, A. totai, and A. intumescens. Biometric traits of the inflorescence architecture and floral structures of various Acrocomia accessions in an ex situ germplasm collection in Brazil were assessed. The unweighted pair group method with arithmetic mean (UPGMA) cluster analysis based on the Gower distance was used to measure dissimilarities between the individual plants of the accessions. To our best knowledge, this study provides the first evidence of the presence of second‐order rachillae in the genus Acrocomia. Evaluated traits showed a high level of variation within and between accessions, emphasizing the phenotypic diversity of the genus. The accessions of A. totai were distinguishable from those of the other two species by their inflorescence architecture and flower traits. The dissimilarities between A. aculeata and A. intumescens were not sufficient to differentiate both. In conclusion, the quantitative assessment of inflorescence and floral traits is a valuable tool for taxonomic resolution of the genus.

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Leaf anatomy of Acrocomia (Arecaceae): an additional contribution to the taxonomic resolution of a genus with great economic potential

Cited by 25 publications

References 29 publications

Whole-genome SNP analysis elucidates the genetic population structure and diversity of Acrocomia species

Whole-genome SNP analysis elucidates the genetic population structure and diversity of Acrocomia species

Does leaf anatomy aid in species identification of Butia (Arecaceae)?

Biometric variability of inflorescence and flower traits among ex situ accessions of the neotropical oilseed palm Acrocomia Mart.

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