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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Comparative phylogeography in the Atlantic forest and Brazilian savannas: pleistocene fluctuations and dispersal shape spatial patterns in two bumblebees

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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: 13/12530-4 - Population, evolutionary and genomic studies in bees
Grantee:Maria Cristina Arias
Support type: Regular Research Grants
FAPESP's process: 10/20548-2 - Phylogeography of B. morio and B. pauloensis (Hymenoptera: Apidae)
Grantee:Elaine Aparecida Françoso
Support type: Scholarships in Brazil - Doctorate (Direct)
FAPESP's process: 09/07124-1 - Phylogeography of B. morio and B. atratus (Hymenoptera: Apidae)
Grantee:Elaine Aparecida Françoso
Support type: Scholarships in Brazil - Master
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 type: BIOTA-FAPESP Program - Thematic Grants
FAPESP's process: 13/03961-1 - Comparative phylogeography and conservation of Bombus morio e Bombus pauloensis (Hymenoptera: Apidae)
Grantee:Elaine Aparecida Françoso
Support type: Scholarships abroad - Research Internship - Doctorate (Direct)