Management increases genetic diversity of honey bees via admixture

Molecular Ecology
Brock A HarpurAmro Zayed

Abstract

The process of domestication often brings about profound changes in levels of genetic variation in animals and plants. The honey bee, Apis mellifera, has been managed by humans for centuries for both honey and wax production and crop pollination. Human management and selective breeding are believed to have caused reductions in genetic diversity in honey bee populations, thereby contributing to the global declines threatening this ecologically and economically important insect. However, previous studies supporting this claim mostly relied on population genetic comparisons of European and African (or Africanized) honey bee races; such conclusions require reassessment given recent evidence demonstrating that the honey bee originated in Africa and colonized Europe via two independent expansions. We sampled honey bee workers from two managed populations in North America and Europe as well as several old-world progenitor populations in Africa, East and West Europe. Managed bees had highly introgressed genomes representing admixture between East and West European progenitor populations. We found that managed honey bees actually have higher levels of genetic diversity compared with their progenitors in East and West Europe, providing a...Continue Reading

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Citations

Jun 4, 2013·Die Naturwissenschaften·David R TarpyJeffrey S Pettis
Oct 17, 2012·Proceedings of the National Academy of Sciences of the United States of America·Clement F KentAmro Zayed
Feb 4, 2014·Proceedings of the National Academy of Sciences of the United States of America·Brock A HarpurAmro Zayed
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Apr 26, 2019·The Journal of Experimental Biology·Nadejda TsvetkovAmro Zayed
Aug 20, 2020·Proceedings. Biological Sciences·Mohammad A ImritAmro Zayed
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Feb 16, 2019·Genome Biology and Evolution·Brock A HarpurAmro Zayed
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