The genomic basis of evolutionary differentiation among honey bees
| Autor: | Mario Stanke, Nikolaus Koeniger, Stefanie Nachweide, Roderic Guigó, Francisco Camara, Kimberly K. O. Walden, Philipp Brand, Gene E. Robinson, Olav Rueppell, Jacob Herman, Darren E. Hagen, Daniel Ence, Katharina J. Hoff, Bertrand Fouks, Michael C. Schatz, Panuwan Chantawannakul, Lars Romoth, Christine G. Elsik, Kim C. Worley, Giuseppe Narzisi, Mark Yandell, Hugh M. Robertson, Hung N. Nguyen |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Genetic diversity
animal structures biology Research media_common.quotation_subject fungi food and beverages Insect Honey bee biology.organism_classification Eusociality Genome Western honey bee Phylogenetics Evolutionary biology Genetics behavior and behavior mechanisms Genetics (clinical) media_common Apis florea |
| Zdroj: | Genome Res |
| Popis: | In contrast to the western honey bee,Apis mellifera, other honey bee species have been largely neglected despite their importance and diversity. The genetic basis of the evolutionary diversification of honey bees remains largely unknown. Here, we provide a genome-wide comparison of three honey bee species, each representing one of the three subgenera of honey bees, namely the dwarf (Apis florea), giant (A. dorsata), and cavity-nesting (A. mellifera) honey bees with bumblebees as an outgroup. Our analyses resolve the phylogeny of honey bees with the dwarf honey bees diverging first. We find that evolution of increased eusocial complexity inApisproceeds via increases in the complexity of gene regulation, which is in agreement with previous studies. However, this process seems to be related to pathways other than transcriptional control. Positive selection patterns acrossApisreveal a trade-off between maintaining genome stability and generating genetic diversity, with a rapidly evolving piRNA pathway leading to genomes depleted of transposable elements, and a rapidly evolving DNA repair pathway associated with high recombination rates in allApisspecies. Diversification withinApisis accompanied by positive selection in several genes whose putative functions present candidate mechanisms for lineage-specific adaptations, such as migration, immunity, and nesting behavior. |
| Databáze: | OpenAIRE |
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