ArticleProceedings of the National Academy of Sciences of the United States of America2011
The genome of the fire ant Solenopsis invicta.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 173 papers, 1 of them a synthesis that pooled it.
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173 citing papers in PubMed, 1 synthesis or guideline pooled it, 365 citations in OpenAlex.
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- Phenomenon of reproductive plasticity in ants.Current opinion in insect science · 2024Review
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- Tracking Adaptive Pathways of Invasive Insects: Novel Insight from Genomics.International journal of molecular sciences · 2023Review
- Genome-Wide Analysis of the Odorant Receptor Gene Family inInternational journal of molecular sciences · 2023Article
113 more citing papers are in PubMed but not listed here.
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Authors and funding
38 authors at 14 institutions in 7 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Ants have evolved very complex societies and are key ecosystem members. Some ants, such as the fire ant Solenopsis invicta, are also major pests. Here, we present a draft genome of S. invicta, assembled from Roche 454 and Illumina sequencing reads obtained from a focal haploid male and his brothers. We used comparative genomic methods to obtain insight into the unique features of the S. invicta genome. For example, we found that this genome harbors four adjacent copies of vitellogenin. A phylogenetic analysis revealed that an ancestral vitellogenin gene first underwent a duplication that was followed by possibly independent duplications of each of the daughter vitellogenins. The vitellogenin genes have undergone subfunctionalization with queen- and worker-specific expression, possibly reflecting differential selection acting on the queen and worker castes. Additionally, we identified more than 400 putative olfactory receptors of which at least 297 are intact. This represents the largest repertoire reported so far in insects. S. invicta also harbors an expansion of a specific family of lipid-processing genes, two putative orthologs to the transformer/feminizer sex differentiation gene, a functional DNA methylation system, and a single putative telomerase ortholog. EST data indicate that this S. invicta telomerase ortholog has at least four spliceforms that differ in their use of two sets of mutually exclusive exons. Some of these and other unique aspects of the fire ant genome are likely linked to the complex social behavior of this species.
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