| Journal: | Genetics and molecular biology |
| Database: | PERIÓDICA |
| System number: | 000418154 |
| ISSN: | 1415-4757 |
| Authors: | Soares, Luis Eduardo2 Zanella, Camila M3 Bered, Fernanda1 |
| Institutions: | 1Radboud University, Radboud Institute for Molecular Life Sciences, Nijmegen, Gelderland. Países Bajos |
| Year: | 2018 |
| Volumen: | 41 |
| Pages: | 308-317 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Analítico |
| English abstract | The Southern Brazilian Highlands are composed by a mosaic of Mixed Ombrophilous Forest (MOF) and grassland formations, an interesting landscape for the study of population structure. We analyzed the genetic diversity within and among populations of the MOF-endemic bromeliad Vriesea reitzii by genotyping seven nuclear microsatellite loci in 187 individuals from six populations. We characterized levels of genetic diversity and assessed the genetic structure among populations. Vriesea reitzii populations showed high levels of genetic variation (number of alleles 28 - 43, allelic richness 3.589 - 5.531) and moderate levels of genetic differentiation ( F ST = 0.123, R ST = 0.096). The high levels of genetic diversity may be explained by species life-history traits, such as habit and mating system. The mod- erate structure may be a product of the combination of ancient and contemporary gene flow, resulting from the ex- pansion of the forest in the Holocene, and/or due to facilitated dispersal mediated by the MOF’s mosaic landscape. The genetic results indicated no imminent threat to this bromeliad. However, the species is highly associated with the MOF, putting landscape conservation at the center of conservation efforts for the species’ maintenance |
| Disciplines: | Agrociencias, Biología |
| Keyword: | Silvicultura, Genética, Ecología, Bosque ombrófilo mixto, Bromeliaceae, Vriesea reitzii, Bosque de Araucaria, Flujo génico, Conservación |
| Keyword: | Silviculture, Genetics, Ecology, Mixed ombrophylous forest, Bromeliaceae, Vriesea reitzii, Araucaria forest, Gene flow, Conservation |
| Full text: | Texto completo (Ver PDF) |
