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      Assessing the genetic diversity of Myrsine umbellata (Primulaceae) in Brazilian Atlantic Forest remnants - an important step towards reforestation efforts

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          Abstract

          Abstract The investigation of genetic diversity in natural populations of species that show potential for use in reforestation programs is a key step in making management decisions. However, reforestation programs with native species in Brazil are still rarely based on a genetic understanding of the seed matrices used for seedling production. This is also the case for Myrsine umbellata, a dioecious shrub within the family Primulaceae that has been used in reforestation programs in Brazil, mainly due to its high production capacity of fruits attractive to the avifauna. The goal of this study was to measure intra- and interpopulational genetic diversity in natural populations of M. umbellata in six forest remnants of the Atlantic Forest using ISSR markers. The results revealed that the intrapopulational genetic diversity was greater than the genetic diversity among the studied populations. For this reason, the cultivation of seedlings from seeds obtained in more than one population seems the most appropriate strategy for reforestation purposes. Even though the most isolated populations are also the ones with highest genetic structure, all populations of M. umbellata included in this study revealed to be an important germplasm bank conserved in situ.

          Translated abstract

          Resumo Investigar a diversidade genética em populações naturais de espécies com potencial para uso em programas de reflorestamento é um passo importante para a tomada de decisões relacionadas ao planejamento e manejo dos plantios. No entanto, programas de reflorestamento com espécies nativas no Brasil raramente são realizados com base no conhecimento do genótipo das matrizes doadoras das sementes utilizadas para produção de mudas. Este é o caso de Myrsine umbellata, um arbusto dioico pertencente à família Primulaceae, que vem sendo utilizado em programas de reflorestamento no Brasil principalmente por apresentar elevada capacidade de produção de frutos atrativos à avifauna. O objetivo deste estudo foi mensurar a diversidade genética intra e interpopulacional em populações naturais de M. umbellata em seis remanescentes florestais da Floresta Atlântica, utilizando marcadores ISSR. Os resultados revelaram que a diversidade genética intrapopulacional foi maior que a diversidade genética entre as populações estudadas. Por essa razão, o cultivo de mudas a partir de sementes obtidas em mais de uma população parece ser a estratégia mais apropriada para reflorestamento. Mesmo considerando que as populações mais isoladas são aquelas mais estruturadas, todas as populações de M. umbellata incluídas neste estudo revelaram ser importantes bancos de germoplasma conservados in situ.

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          Detecting the number of clusters of individuals using the software structure: a simulation study

          The identification of genetically homogeneous groups of individuals is a long standing issue in population genetics. A recent Bayesian algorithm implemented in the software STRUCTURE allows the identification of such groups. However, the ability of this algorithm to detect the true number of clusters (K) in a sample of individuals when patterns of dispersal among populations are not homogeneous has not been tested. The goal of this study is to carry out such tests, using various dispersal scenarios from data generated with an individual-based model. We found that in most cases the estimated 'log probability of data' does not provide a correct estimation of the number of clusters, K. However, using an ad hoc statistic DeltaK based on the rate of change in the log probability of data between successive K values, we found that STRUCTURE accurately detects the uppermost hierarchical level of structure for the scenarios we tested. As might be expected, the results are sensitive to the type of genetic marker used (AFLP vs. microsatellite), the number of loci scored, the number of populations sampled, and the number of individuals typed in each sample.
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            • Record: found
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            Measures of the Amount of Ecologic Association Between Species

            Lee Dice (1945)
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              • Record: found
              • Abstract: not found
              • Article: not found

              Isolation of plant DNA from faesh tissue

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                Author and article information

                Journal
                rod
                Rodriguésia
                Rodriguésia
                Instituto de Pesquisas Jardim Botânico do Rio de Janeiro (Rio de Janeiro, RJ, Brazil )
                0370-6583
                2175-7860
                2021
                : 72
                : e00182019
                Affiliations
                [2] Alegre Espírito Santo orgnameUniversidade Federal do Espírito Santo orgdiv1Centro de Ciências Agrárias e Engenharias orgdiv2Depto. Biologia Brazil
                [1] Alegre Espírito Santo orgnameUniversidade Federal do Espírito Santo orgdiv1Centro de Ciências Agrárias e Engenharias orgdiv2Prog. Pós-graduação em Genética e Melhoramento Brazil
                [3] Alegre Espírito Santo orgnameUniversidade Federal do Espírito Santo orgdiv1Centro de Ciências Agrárias e Engenharias orgdiv2Depto. Biologia Brazil
                [4] Alegre Espírito Santo orgnameUniversidade Federal do Espírito Santo orgdiv1Centro de Ciências Agrárias e Engenharias orgdiv2Depto. Biologia Brazil
                Article
                S2175-78602021000100200 S2175-7860(21)07200000200
                10.1590/2175-7860202172008
                0bd4c158-e544-4ba0-96ca-94ba08be2408

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                History
                : 24 September 2019
                : 20 February 2019
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 31, Pages: 0
                Product

                SciELO Brazil

                Categories
                Original Papers

                Capororoca,tropical forests,Myrsinoideae,marcadores ISSR,ISSR markers

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