Genetic diversity and structure of Acrocomia aculeata (Jacq.) Lodd. ex Mart. (Arecaceae) using microsatellite DNA markers in Costa Rica

Navarro-Cascante, Valeria; Arnáez-Serrano, Elizabeth; Rojas-Gómez, Mónica; González, Ileana Moreira; Vargas-Hernández, Guillermo; Zamora, Nelson; Briceño-Elizondo, Elemer; Marroquín, Jonathan Andre Morales; Sevilla-Cortés, Pamela; Oviedo-Ulate, Jesús Antonio; Araya-Valverde, Emanuel

doi:10.1007/s10722-022-01501-8

Cited by 2 publications

(1 citation statement)

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“…Though not endangered taxa, Acrocomia occurs mainly in areas with high anthropogenic disturbance, and its natural habitats are highly fragmented, which may decrease the genetic diversity of the natural populations as gene flow between populations is restricted (Clement et al., 2005 ; Coelho et al., 2018 ; Navarro‐Cascante et al., 2023 ). This is particularly the case as the major pollinators are small‐bodied insects with short flight distances (Lanes et al., 2015 ).…”

Section: Discussionmentioning

confidence: 99%

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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Section: Discussionmentioning

confidence: 99%