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Social supergenes of superorganisms: Do supergenes play important roles in social evolution?
Author(s) -
Linksvayer Timothy A.,
Busch Jeremiah W.,
Smith Chris R.
Publication year - 2013
Publication title -
bioessays
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.175
H-Index - 184
eISSN - 1521-1878
pISSN - 0265-9247
DOI - 10.1002/bies.201300038
Subject(s) - biology , supergene (geology) , evolutionary biology , social evolution , mimicry , trait , selection (genetic algorithm) , evolutionary dynamics , human evolutionary genetics , genetics , genome , gene , ecology , sociology , mineral , population , demography , artificial intelligence , computer science , programming language
We suggest that supergenes, groups of co‐inherited loci, may be involved in a range of intriguing genetic and evolutionary phenomena in insect societies, and may play broad roles in the evolution of cooperation and conflict. Supergenes are central in the evolution of an array of traits including self‐incompatibility, mimicry, and sex chromosomes. Recently, researchers identified a large supergene, described as a social chromosome, which controls social organization in the fire ant. This system was previously considered to be a remarkable example of a single gene affecting a complex social trait. We describe how selection may commonly favor reduced recombination and the formation of supergenes for social traits, and once formed, supergenes may strongly influence further evolutionary dynamics within and between lineages. The evolution of supergenes, and even wholly non‐recombining genomes, may be particularly common in systems in which genetically distinct lineages can form mutually reinforcing socially parasitic relationships.