Queen–worker aggression in the facultatively eusocial bee Megalopta genalis

2019 ◽  
Vol 66 (3) ◽  
pp. 479-490 ◽  
Author(s):  
A. R. Smith ◽  
M. Simons ◽  
V. Bazarko ◽  
J. Harach ◽  
M. A. Seid
Keyword(s):  
Megalopta Genalis

Juvenile hormone levels reflect social opportunities in the facultatively eusocial sweat bee Megalopta genalis (Hymenoptera: Halictidae)

2013 ◽  
Vol 63 (1) ◽  
pp. 1-4 ◽  
Author(s):  
Adam R. Smith ◽  
Karen M. Kapheim ◽  
Betzi Pérez-Ortega ◽  
Colin S. Brent ◽  
William T. Wcislo
Keyword(s):  
Juvenile Hormone ◽  
Sweat Bee ◽  
Hormone Levels ◽  
Megalopta Genalis ◽  
Social Opportunities

scholarly journals Support for maternal manipulation of developmental nutrition in a facultatively eusocial bee, Megalopta genalis (Halictidae)

2011 ◽  
Vol 65 (6) ◽  
pp. 1179-1190 ◽  
Author(s):  
Karen M. Kapheim ◽  
Sandra P. Bernal ◽  
Adam R. Smith ◽  
Peter Nonacs ◽  
William T. Wcislo
Keyword(s):  
Megalopta Genalis ◽  
Maternal Manipulation

Neural organisation in the first optic ganglion of the nocturnal bee Megalopta genalis

2004 ◽  
Vol 318 (2) ◽  
pp. 429-437 ◽  
Author(s):  
Birgit Greiner ◽  
Willi A. Ribi ◽  
William T. Wcislo ◽  
Eric J. Warrant
Keyword(s):  
Megalopta Genalis ◽  
First Optic Ganglion ◽  
Optic Ganglion

Survival and productivity benefits to social nesting in the sweat bee Megalopta genalis (Hymenoptera: Halictidae)

2007 ◽  
Vol 61 (7) ◽  
pp. 1111-1120 ◽  
Author(s):  
Adam R. Smith ◽  
William T. Wcislo ◽  
Sean O’Donnell
Keyword(s):  
Sweat Bee ◽  
Megalopta Genalis

Anatomical and physiological evidence for polarisation vision in the nocturnal bee Megalopta genalis

2007 ◽  
Vol 193 (6) ◽  
pp. 591-600 ◽  
Author(s):  
Birgit Greiner ◽  
Thomas W. Cronin ◽  
Willi A. Ribi ◽  
William T. Wcislo ◽  
Eric J. Warrant
Keyword(s):  
Megalopta Genalis ◽  
Physiological Evidence ◽  
Polarisation Vision

Assured fitness returns favor sociality in a mass-provisioning sweat bee, Megalopta genalis (Hymenoptera: Halictidae)

2003 ◽  
Vol 54 (1) ◽  
pp. 14-21 ◽  
Author(s):  
Adam R. Smith ◽  
William T. Wcislo ◽  
Sean O'Donnell
Keyword(s):  
Sweat Bee ◽  
Megalopta Genalis

scholarly journals Developmental plasticity shapes social traits and selection in a facultatively eusocial bee

2020 ◽  
Vol 117 (24) ◽  
pp. 13615-13625 ◽  
Author(s):  
Karen M. Kapheim ◽  
Beryl M. Jones ◽  
Hailin Pan ◽  
Cai Li ◽  
Brock A. Harpur ◽  
...  
Keyword(s):  
Molecular Evolution ◽  
Social Behavior ◽  
Developmental Plasticity ◽  
Sex Differentiation ◽  
Integrative Genomics ◽  
Genetic Changes ◽  
Evolutionary Origins ◽  
Social Traits ◽  
Megalopta Genalis ◽  
Evolutionary Innovation

Developmental plasticity generates phenotypic variation, but how it contributes to evolutionary change is unclear. Phenotypes of individuals in caste-based (eusocial) societies are particularly sensitive to developmental processes, and the evolutionary origins of eusociality may be rooted in developmental plasticity of ancestral forms. We used an integrative genomics approach to evaluate the relationships among developmental plasticity, molecular evolution, and social behavior in a bee species (Megalopta genalis) that expresses flexible sociality, and thus provides a window into the factors that may have been important at the evolutionary origins of eusociality. We find that differences in social behavior are derived from genes that also regulate sex differentiation and metamorphosis. Positive selection on social traits is influenced by the function of these genes in development. We further identify evidence that social polyphenisms may become encoded in the genome via genetic changes in regulatory regions, specifically in transcription factor binding sites. Taken together, our results provide evidence that developmental plasticity provides the substrate for evolutionary novelty and shapes the selective landscape for molecular evolution in a major evolutionary innovation: Eusociality.

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