| Full text | |
| Author(s): |
Francoso, Elaine
;
Zuntini, Alexandre Rizzo
;
Carnaval, Ana Carolina
;
Arias, Maria Cristina
Total Authors: 4
|
| Document type: | Journal article |
| Source: | BMC Evolutionary Biology; v. 16, DEC 7 2016. |
| Web of Science Citations: | 6 |
| Abstract | |
Background: Bombus morio and B. pauloensis are sympatric widespread bumblebee species that occupy two major Brazilian biomes, the Atlantic forest and the savannas of the Cerrado. Differences in dispersion capacity, which is greater in B. morio, likely influence their phylogeographic patterns. This study asks which processes best explain the patterns of genetic variation observed in B. morio and B. pauloensis, shedding light on the phenomena that shaped the range of local populations and the spatial distribution of intra-specific lineages. Results: Results suggest that Pleistocene climatic oscillations directly influenced the population structure of both species. Correlative species distribution models predict that the warmer conditions of the Last Interglacial contributed to population contraction, while demographic expansion happened during the Last Glacial Maximum. These results are consistent with physiological data suggesting that bumblebees are well adapted to colder conditions. Intra-specific mitochondrial genealogies are not congruent between the two species, which may be explained by their documented differences in dispersal ability. Conclusions: While populations of the high-dispersal B. morio are morphologically and genetically homogeneous across the species range, B. pauloensis encompasses multiple (three) mitochondrial lineages, and show clear genetic, geographic, and morphological differences. Because the lineages of B. pauloensis are currently exposed to distinct climatic conditions (and elevations), parapatric diversification may occur within this taxon. The eastern portion of the state of Sao Paulo, the most urbanized area in Brazil, represents the center of genetic diversity for B. pauloensis. (AU) | |
| FAPESP's process: | 10/20548-2 - Phylogeography of B. morio and B. pauloensis (Hymenoptera: Apidae) |
| Grantee: | Elaine Aparecida Françoso |
| Support Opportunities: | Scholarships in Brazil - Doctorate (Direct) |
| FAPESP's process: | 13/50297-0 - Dimensions US-BIOTA São Paulo: a multidisciplinary framework for biodiversity prediction in the Brazilian Atlantic forest hotspot |
| Grantee: | Cristina Yumi Miyaki |
| Support Opportunities: | BIOTA-FAPESP Program - Thematic Grants |
| FAPESP's process: | 09/07124-1 - Phylogeography of B. morio and B. atratus (Hymenoptera: Apidae) |
| Grantee: | Elaine Aparecida Françoso |
| Support Opportunities: | Scholarships in Brazil - Master |
| FAPESP's process: | 13/03961-1 - Comparative phylogeography and conservation of Bombus morio e Bombus pauloensis (Hymenoptera: Apidae) |
| Grantee: | Elaine Aparecida Françoso |
| Support Opportunities: | Scholarships abroad - Research Internship - Doctorate (Direct) |
| FAPESP's process: | 10/50597-5 - Estudos populacionais e evolutivos em abelhas |
| Grantee: | Maria Cristina Arias |
| Support Opportunities: | Regular Research Grants |
| FAPESP's process: | 13/12530-4 - Population, evolutionary and genomic studies in bees |
| Grantee: | Maria Cristina Arias |
| Support Opportunities: | Regular Research Grants |