Spatial and temporal population genetic variation and structure of Nothotsuga longibracteata (Pinaceae), a relic conifer species endemic to subtropical China
AUTOR(ES)
Qiu, Yingjun, Liu, Yifei, Kang, Ming, Yi, Guanmei, Huang, Hongwen
FONTE
Genet. Mol. Biol.
DATA DE PUBLICAÇÃO
2013
RESUMO
Nothotsuga longibracteata, a relic and endangered conifer species endemic to subtropical China, was studied for examining the spatial-temporal population genetic variation and structure to understand the historical biogeographical processes underlying the present geographical distribution. Ten populations were sampled over the entire natural range of the species for spatial analysis, while three key populations with large population sizes and varied age structure were selected for temporal analyses using both nuclear microsatellites (nSSR) and chloroplast microsatellites (cpSSR). A recent bottleneck was detected in the natural populations of N. longibracteata. The spatial genetic analysis showed significant population genetic differentiation across its total geographical range. Notwithstanding, the temporal genetic analysis revealed that the level of genetic diversity between different age class subpopulations remained constant over time. Eleven refugia of the Last Glacial Maximum were identified, which deserve particular attention for conservation management.
Documentos Relacionados
- Population Studies on an Endemic Troglobitic Beetle: Geographical Patterns of Genetic Variation, Gene Flow and Genetic Structure Compared with Morphometric Data
- Spatial and temporal variation in population structure of Hemigrammus marginatus (Characiformes: Characidae) in streams of the Ivinhema River Basin, Brazil
- Macromedusae of Southern Brazil: temporal variation, population structure and biochemical composition
- Genetic variation and population structure in native americans
- Genetic and ecological niche modeling of Calydorea crocoides (Iridaceae): an endemic species of Subtropical Highland Grasslands