Genetic structure and gene flow among populations of Encholirium magalhaesii, a rocky grassland fields bromeliad
| العنوان: | Genetic structure and gene flow among populations of Encholirium magalhaesii, a rocky grassland fields bromeliad |
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| المؤلفون: | Rodrigo Cesar Gonçalves-Oliveira, Maria das Graças Lapa Wanderley, Tina Wöhrmann, Ana Maria Benko-Iseppon, Kurt Weising |
| المصدر: | Brazilian Journal of Botany. 43:283-290 |
| بيانات النشر: | Springer Science and Business Media LLC, 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | 0106 biological sciences, Genetic diversity, biology, Ecology, Encholirium, Deuterocohnia, Plant Science, Pitcairnioideae, biology.organism_classification, 010603 evolutionary biology, 01 natural sciences, Gene flow, Dyckia, Genetic structure, Endemism, 010606 plant biology & botany |
| الوصف: | Encholirium is a genus of 31 xerophytic terrestrial or epilithic bromeliad species endemic to eastern Brazil. Together with Dyckia and Deuterocohnia, it forms the so-called xeric clade of the Pitcairnioideae subfamily of Bromeliaceae. Encholirium species are adapted to rocky landscapes, and many of them are found in the rocky grassland fields of the Espinhaco in the state of Minas Gerais, which is considered the diversity center of the genus. Encholirium species and other bromeliads growing on isolated, island-like habitats like rock outcrops and “inselbergs” are often characterized by high levels of genetic structure and limited gene flow among populations, but there are also exceptions. In the present study, we applied nuclear and chloroplast microsatellite markers to investigate the genetic diversity and population structure of E. magalhaesii L.B.Sm., an endemic species of the Espinhaco, collected in four localities of the Diamantina municipality in southeastern Brazil. Moderate genetic differentiation among localities was revealed by the nuclear markers (Fst = 0.199), whereas genetic structuring was much higher with plastid markers (Fst = 0.496). Estimations of pollen/seed flow ratios suggest that pollen flow is more efficient in maintaining the genetic connectivity among E. magalhaesii populations than seed flow. |
| تدمد: | 1806-9959 0100-8404 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::7cb5c284054f800e4c68872cd1630cf8 https://doi.org/10.1007/s40415-020-00600-z |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........7cb5c284054f800e4c68872cd1630cf8 |
| قاعدة البيانات: | OpenAIRE |
Find this article in full text from Springer Verlag. | تدمد: | 18069959 01008404 |
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