| Journal: | Anais da Academia Brasileira de Ciencias |
| Database: | PERIÓDICA |
| System number: | 000435880 |
| ISSN: | 0001-3765 |
| Authors: | Silva, Susana M.M1 Martins, Karina2 Costa, Frederico H.S3 Campos, Tatiana de4 Scherwinski Pereira, Jonny E5 |
| Institutions: | 1Universidade Federal do Acre, Programa de Pos-Graduacao em Biodiversidade e Biotecnologia, Rio Branco, Acre. Brasil 2Universidade Federal de Sao Carlos, Centro de Ciencias Humanas e Biologicas, Sorocaba, Sao Paulo. Brasil 3Universidade Federal do Acre, Centro de Ciencias Biologicas e da Natureza, Rio Branco, Acre. Brasil 4Empresa Brasileira de Pesquisa Agropecuaria, Acre, Rio Branco, Acre. Brasil 5Empresa Brasileira de Pesquisa Agropecuaria, Recursos Genéticos e Biotecnologia, Brasilia, Distrito Federal. Brasil |
| Year: | 2020 |
| Volumen: | 92 |
| Number: | 3 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Analítico, descriptivo |
| English abstract | The Southwestern Region of the Brazilian Amazon is formed by forests dominated by bamboos. The genus Guadua is endemic to the Americas, and little is known about the genetic diversity and structure of species of this genus. This study aimed to evaluate the genetic diversity and structure of two native Guadua species in natural populations in the Southwestern region of the Brazilian Amazon. Therefore, the genetic diversity and structure of Guadua aff. chaparensis and Guadua aff. lynnclarkiae were evaluated with the use of microsatellite molecular markers (SSR). It was verified that the average genetic diversity for the populations studied was considered high ( H ^ e =0.5) compared to other species of bamboo. All populations had rare and private alleles, and none of them presented significant values of inbreeding. The populations were divergent ( G ^ ST = 0.46), resulting in a low apparent gene flow. The Bayesian analysis showed that among the 350 individuals analyzed, five groups (K=5) were formed, with little similarity among the groups (Populations), although two of them presented clonal individuals. According to the results obtained, it can be conclude that populations should be treated as having unique characteristics, mainly when accessed for management and for in situ and ex situ conservation studies |
| Disciplines: | Biología |
| Keyword: | Genética, Gramíneas, Bambú, Selva tropical amazónica, Diversidad genética, Estructura genética, Guadua, Poaceae |
| Keyword: | Genetics, Gramineae, Bamboo, Amazon rainforest, Genetic diversity, Guadua, Poaceae, Genetic structure |
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