Dataset Information

Natural Populations of Astrocaryum aculeatum Meyer in Amazonia: Genetic Diversity and Conservation.

ABSTRACT: Astrocaryum aculeatum, a palm tree incipiently domesticated from upland ecosystems in the Brazilian Amazon, is especially adapted to anthropized areas. The pulp of the fruit, obtained by extractivism, is consumed fresh by the Amazonian population. The objective of the study is to evaluate the diversity and genetic structure of the natural populations of A. aculeatum, exploited by extractive farmers in Amazonas, Brazil, seeking to suggest conservation and management strategies for this species. A total of 218 plants were sampled in 15 populations in 14 municipalities in the state of Amazonas, evaluated by 12 microsatellite loci. A total of 101 alleles were observed. The means of the observed heterozygosities (H_O = 0.6390) were higher than expected (H_E = 0.557), with high levels of heterozygotes in the populations. The fixation index in the loci and populations was negative. The F_ST (0.07) and AMOVA showed moderate population structure. Bayesian analysis indicated the grouping k = 4 as the most adequate. There is a high genetic diversity in populations, with a moderate genetic structure due to possible historical events, which could be related to the process of subpopulation formation, possibly presenting three historical moments: before and after the beginning of deforestation and today. The conservation and management policies of this species must be carried out at a watershed level.

SUBMITTER: Ramos SLF

PROVIDER: S-EPMC9655110 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature

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Natural Populations of Astrocaryum aculeatum Meyer in Amazonia: Genetic Diversity and Conservation.

Ramos Santiago Linorio Ferreyra SLF Lopes Maria Teresa Gomes MTG Meneses Carlos C Dequigiovanni Gabriel G de Macêdo Jeferson Luis Vasconcelos JLV Lopes Ricardo R Sebbenn Alexandre Magno AM da Silva Rogério Freire RF de Jesus Pinto Fraxe Therezinha T Veasey Elizabeth Ann EA

Plants (Basel, Switzerland) 20221102 21

Astrocaryum aculeatum, a palm tree incipiently domesticated from upland ecosystems in the Brazilian Amazon, is especially adapted to anthropized areas. The pulp of the fruit, obtained by extractivism, is consumed fresh by the Amazonian population. The objective of the study is to evaluate the diversity and genetic structure of the natural populations of A. aculeatum, exploited by extractive farmers in Amazonas, Brazil, seeking to suggest conservation and management strategies for t ...[more]

PMID: 36365412

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Dataset Information

Natural Populations of Astrocaryum aculeatum Meyer in Amazonia: Genetic Diversity and Conservation.

Publications

Natural Populations of <i>Astrocaryum aculeatum</i> Meyer in Amazonia: Genetic Diversity and Conservation.

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