<b>Testing hypotheses for morphological differences among populations of <i>Miconia sellowiana</i> (Melastomataceae) in southern Brazil</b> - doi: 10.4025/actascibiolsci.v34i1.7580
Micona sellowiana in different types of vegetation (Grassland, Montane Atlantic forest, Upper Montane Atlantic forest and Araucaria Pine forest). Although such variability could be due to phenotypic plasticity, an alternative explanation for this phenomenon is the existence of genetic differentiatio...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Universidade Estadual de Maringá
2011-11-01
|
| Series: | Acta Scientiarum : Biological Sciences |
| Subjects: | |
| Online Access: | http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/7580 |
| Summary: | Micona sellowiana in different types of vegetation (Grassland, Montane Atlantic forest, Upper Montane Atlantic forest and Araucaria Pine forest). Although such variability could be due to phenotypic plasticity, an alternative explanation for this phenomenon is the existence of genetic differentiation among populations resulting from genetic drift or adaptation to different environments. The goal of the present study was to investigate the extent of genetic structures among populations of <em>Miconia sellowiana</em> using a neutral dominant genetic marker (RAPD - Random Amplification of Polymorphic DNA). There was considerable variability in the studied samples, resulting in 96.5% polymorphic loci and a Gst = 0.13. The analysis of molecular variance showed the populations are genetically structured (p < 0.001). The subpopulations of <em>M. sellowiana </em>were grouped similarly together using genetic (based on a neutral marker) or morphological dendrograms, suggesting that the morphological differences observed are the result of local genetic differentiation by genetic drift and not the alleged phenotypic plasticity of the species |
|---|---|
| ISSN: | 1679-9283 1807-863X |