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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Azevedo, V. C. R. Amorim, J. A. E. Lédo, A. S. Silva, A. V. C. Mata, L. R. |
| Spatial Coverage | Brazil |
| Description | Country affiliation: Brazil Author Affiliation: Amorim JA ( Programa de Pós-Graduação em Biotecnologia em Recursos Naturais, Universidade Federal de Sergipe, Aracaju, SE, Brasil.); Mata LR ( Embrapa Recursos Genéticos e Biotecnologia, Brasília, DF, Brasil.); Lédo AS ( Embrapa Tabuleiros Costeiros, Aracaju, SE, Brasil.); Azevedo VC ( Embrapa Recursos Genéticos e Biotecnologia, Brasília, DF, Brasil.); Silva AV ( Embrapa Tabuleiros Costeiros, Aracaju, SE, Brasil ana.veruska@embrapa.br.) |
| Abstract | In this study, we analyzed the genetic diversity and structure of remnants of mangaba populations in states of northeastern Brazil by applying 9 microsatellite markers previously developed to establish conservation strategies for germplasm and species preservation. Six to 20 individuals per population were analyzed, with a total of 94 individuals and 6 populations from the states of Ceará, Pernambuco, and Sergipe, Brazil. The intra-population positive fixation index (f) in all populations indicated inbreeding resulting from the lack of random mating. The mean genetic diversity index values GST, FST, and RST estimated for divergence among the 6 populations were 0.14 (P < 0.05), revealing moderate genetic differentiation. The smallest FST value (P ≥ 0.05) was observed between the Jacarecoara and Tapera populations (0.005) and the highest between the Barra dos Coqueiros and Jacarecoara populations (0.287). The Jacarecoara population was the most divergent among the populations analyzed. According to analysis of molecular variance results, the largest variation percentage resulted from variability within populations (83.18%). Bayesian clustering analysis showed the formation of 2 sets (K = 2). Our results are important for developing strategies for in situ conservation of the species, seed collection, and ex situ conservation. For both methods, conservation of the greatest possible genetic variability of the species is essential. |
| e-ISSN | 16765680 |
| Journal | Genetics and Molecular Research |
| Issue Number | 1 |
| Volume Number | 14 |
| Language | English |
| Publisher | Fundação de Pesquisas Científicas de Ribeirão Preto |
| Publisher Date | 2015-02-02 |
| Publisher Place | Brazil |
| Access Restriction | Open |
| Subject Keyword | Apocynaceae Genetics Genetic Variation Genetics, Population Microsatellite Repeats Growth & Development Conservation Of Natural Resources Demography Inbreeding Research Support, Non-u.s. Gov't Discipline Genetics Discipline Molecular Biology Discipline Bioinformatics |
| Content Type | Text |
| Resource Type | Article |
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