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Myrmelachista, Brachymyrmex, and Lasius ants

ABSTRACT: Evolutionary deja vu. A case of convergent evolution in an ant-plant association

PROVIDER: PRJNA1127650 | ENA |

REPOSITORIES: ENA

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A common molecular basis to the convergent evolution of the selfing syndrome in Capsella.

Project description:Whether, and to what extent, phenotypic evolution follows predictable genetic paths, remains an important question in evolutionary biology. Convergent evolution of similar characters provides a unique opportunity to address this question. The transition to selfing and the associated changes in flower morphology are among the most prominent examples of repeated evolution in plants. Yet, to date no studies have directly compared the extent of similarities between convergent adaptations to selfing. In this study, we take advantage of the independent transitions to self-fertilization in the genus Capsella to test the existence of genetic and developmental constraints imposed on flower evolution in the context of the selfing syndrome. While C. rubella and C. orientalis have emerged independently, both have evolved almost identical flower characters. Not only the evolutionary outcome is identical but, in both cases, the same developmental strategies underlie the convergent reduction of flower size. This has been associated with convergent evolution of gene-expression changes. The transcriptomic changes common to both selfing lineages are enriched in genes with low-network connectivity and with organ-specific expression patterns. Comparative genetic mapping also indicates that, at least in the case of petal size evolution, these similarities are largely caused by mutations at the same loci. Together, these results suggest that the limited availability of low-pleiotropy paths predetermine closely related species to similar evolutionary outcomes.

2020-03-31 | GSE140465 | GEO

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Project description:Reference genome of the ant Lasius platythorax

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Transcriptional and post-transcriptional control of odorant receptor choice in ants

Project description:We generated snRNA-Seq for olfactory sensory neurons from late stage pupae of the clonal raider ant to study the chemosensory gene expression during development.

2023-10-05 | GSE241865 | GEO

Comparative analysis of co-evolving host-parasite associations reveal unique expression patterns and pathways underlying slavemaker raiding and host defensive behavior in ants

Project description:The transition to parasitism is a drastic shift in lifestyle, involving rapid changes in gene structure, function, and expression. Evolutionarily 'young' parasites are ideal models for the elucidation of the early steps of this transition. After the establishment of an antagonistic relationship, parasite and host co-evolve through reciprocal adaptations resulting in an evolutionary arms-race. Repeated evolution of social parasitism and slavery among Temnothorax ants allows us to examine gene expression patterns characterizing slavemaker raiding and reciprocal host defensive behavior. Previous studies of Temnothorax provide evidence for co-evolving adaptations between parasites and hosts, as well as diverging raiding strategies between slavemakers. However, under parasite pressure, host defense portfolios shift similarly, suggesting diverging evolution of defensive traits. Through comparative gene expression analyses, we find that slavemaker raiding behavior is characterized by a down-regulation of numerous genes relative to their non-raiding state. Moreover, only a small number of genes shared expression between slavemaking species. In contrast, hosts possess a higher ratio of commonly-to-privately over-expressed genes and metabolic pathways during raids, suggesting that genes of similar function control defensive behavior. Additionally, a number of candidate genes were identified, each potentially playing a major role in shaping slavemaker- and host-specific behaviors. Finally, in two slavemaking species, functional enrichment analyses indicate that genes over-expressed during raiding behavior are associated with ribosomal structure, oxidation-reduction, and metabolic processes. Overall, our analysis revealed evidence for divergent evolution among closely-related ant species, where species-specific gene expression characterize raiding and defensive behavior.

2017-07-01 | GSE95604 | GEO

Brain RNA-seq one day after knockdown of the corazonin receptor in Harpegnathos ants

Project description:This experiment aimed at determining the immediate (d1) transcriptional consequences of knockding down the corazonin receptor in the ant brain.

2017-08-10 | GSE99130 | GEO

Foodborne Transmission and Clinical Symptoms of Honey Bee Viruses in Ants Lasius spp.

Project description: Not available

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Caste- and environment-associated differential expression of odorant receptors in pest ants

Project description:We performed bulk RNA-seq analysis of antennae from three notable pest ant species, Camponotus floridanus, Atta sexdens, and Atta cephalotes, in order to characterize caste-specific expression patterns of odorant receptor genes.

2025-06-23 | GSE288141 | GEO

Proteome evolution under essential resource limitation

Project description:Resource limitation is a major driver of ecological and evolutionary dynamics of organisms. Short-term responses to resource limitation include plastic changes in molecular phenotypes including protein expression. Yet little is known about the evolution of the molecular phenotype under longer-term resource limitation. Here, we combine experimental evolution of the green alga Chlamydomonas reinhardtii under multiple different non-substitutable resource limitation regimes with proteomic measurements to investigate evolutionary adaptation of the molecular phenotype. We demonstrate convergent proteomic evolution of core metabolic functions, including the Calvin-Benson cycle and gluconeogenesis, across different resource limitation selection environments. We did not observe proteomic changes consistent with optimized uptake of the different particular limiting resources.

2018-11-08 | PXD010847 | Pride

Trail Pheromone Does Not Modulate Subjective Reward Evaluation in <i>Lasius niger</i> Ants.

Project description: Not available

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Pseudomyrmex ants

Project description:Species paraphyly and social parasitism: phylogenomics, morphology, and geography clarify the evolution of the Pseudomyrmex elongatulus group (Hymenoptera: Formicidae), a Mesoamerican ant clade

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