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Genetic diversity and structure, gene flow and mating system of Euterpe precatoria Mart. in natural populations in the Amazon, in the states of Acre, Roraima and Amazonas, by microsatellite markers

Grant number: 14/10947-8
Support type:Scholarships in Brazil - Post-Doctorate
Effective date (Start): August 01, 2014
Effective date (End): October 06, 2016
Field of knowledge:Agronomical Sciences - Forestry Resources and Forestry Engineering - Nature Conservation
Cooperation agreement: Coordination of Improvement of Higher Education Personnel (CAPES)
Principal researcher:Jose Nivaldo Garcia
Grantee:Santiago Linorio Ferreyra Ramos
Home Institution: Escola Superior de Agricultura Luiz de Queiroz (ESALQ). Universidade de São Paulo (USP). Piracicaba , SP, Brazil


Açaí-do-Amazonas (Euterpe precatoria) is native of the Brazilian Amazon. It has been widely used for its medicinal properties and principally as a food source and for the industry. This species is found in the western Amazon, in the states of Amazonas, Acre and Rondônia. It is important economically and socially for these producer states, as well for the consumer states, considering that through the extractive collection it produces, on average, 100,000 tons per year, which created a major national and international production chain. However, there is no policy for the conservation of E. precatoria, and there is a lack of studies of the different stages of domestication, and especially those related to the characterization of the genetic variability present in the collection areas of the extractive traditional farmers of açaí-do-Amazonas. Under this need the objective of this work is to develop microsatellite markers for açaí-do-Amazonas, to evaluate the genetic diversity and structure, gene flow and mating system of natural populations in the Amazon, which are used by these small farmers as a collection area. This study will generate information on the genetic structure of populations based on estimates of allele and genotype frequencies, estimating the magnitude and distribution of variability within and between sampling areas, as well as gene flow and mating system existing in the populations, enabling the improvement and efficiency of breeding programs, as well as the definition of collection strategies aiming at this species conservation, both ex situ and in situ (AU)

Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
FERREYRA RAMOS, SANTIAGO LINORIO; GOMES LOPES, MARIA TERESA; LOPES, RICARDO; DEQUIGIOVANNI, GABRIEL; VASCONCELOS DE MACEDO, JEFERSON LUIS; SEBBENN, ALEXANDRE MAGNO; DA SILVA, EDSON BARCELOS; GARCIA, JOSE NIVALDO. Mating system analysis of Acai-do-Amazonas (Euterpe precatoria Mart.) using molecular markers. Crop Breeding and Applied Biotechnology, v. 19, n. 1, p. 126-130, JAN-MAR 2019. Web of Science Citations: 1.
FERREYRA RAMOS, SANTIAGO LINORIO; DEQUIGIOVANNI, GABRIEL; SEBBENN, ALEXANDRE MAGNO; GOMES LOPES, MARIA TERESA; VASCONCELOS DE MACEDO, JEFERSON LUIS; VEASEY, ELIZABETH ANN; ALVES-PEREIRA, ALESSANDRO; DA SILVA, PERLA PIMENTEL; GARCIA, JOSE NIVALDO; KAGEYAMA, PAULO YOSHIO. Paternity analysis, pollen flow, and spatial genetic structure of a natural population of Euterpe precatoria in the Brazilian Amazon. ECOLOGY AND EVOLUTION, v. 8, n. 22, p. 11143-11157, NOV 2018. Web of Science Citations: 0.

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