Ontology highlight
ABSTRACT:
PROVIDER: PRJNA505605 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:Nematocysts are secretory organelles in cnidarians that play important roles in predation, de-fense, locomotion, and host invasion. However, the extent to which nematocysts contribute to adaptation and the mechanisms underlying nematocyst evolution are unclear. Here, we inves-tigated the role of the nematocyst in cnidarian evolution based on 8 nematocyst proteomes and 110 cnidarian transcriptomes/genomes. We detected extensive species-specific adaptative muta-tions in nematocyst proteins (NEMs) and evidence for decentralized evolution, in which most evolutionary events involved non-core NEMs, reflecting the rapid diversification of NEMs in cnidarians. Moreover, there was a 33–55 million year macroevolutionary lag between nematocyst evolution and the main phases of cnidarian diversification, suggesting that the nematocyst can act as a driving force in evolution. Quantitative analysis revealed an excess of adaptive changes in NEMs and enrichment for positively selected conserved NEMs. Together, these findings suggest that nematocyst may be key to the adaptive success of cnidarians and provide a reference for quantitative analyses of the roles of phenotypic novelties in adaptation.
2022-02-16 | PXD030136 | Pride
Project description:Deciphering the evolutionary origins and maintenance of plant diversity in the Alpine Biodiversity Hotspot
| PRJEB6627 | ENA
Project description:Deciphering the evolutionary origins and maintenance of plant diversity in the Alpine Biodiversity Hotspot
| PRJEB6635 | ENA
Project description:The rapid pace of evolution in bacteria is widely attributed to the promiscuous horizontal transfer and recombination of protein-coding genes. However, it is not known whether the same forces also drive the evolution of non-coding regulatory regions. Here we demonstrate that regulatory region can M-bM-^@M-^XswitchM-bM-^@M-^Y between non-homologous alternatives and that such switching is ubiquitous, occurring across the bacterial domain. We show that such regulatory switching strongly impacts promoter architecture and expression divergence. We further show that regulatory transfer facilitates rapid phenotypic diversification of a human pathogen. This regulatory mobility enables bacterial genes to access a vast pool of potential regulatory elements, facilitating efficient exploration of the regulatory landscape. Examination of 2 E. coli strains in 2 conditions
2014-11-04 | E-GEOD-59468 | biostudies-arrayexpress
Project description:The rapid pace of evolution in bacteria is widely attributed to the promiscuous horizontal transfer and recombination of protein-coding genes. However, it is not known whether the same forces also drive the evolution of non-coding regulatory regions. Here we demonstrate that regulatory region can ‘switch’ between non-homologous alternatives and that such switching is ubiquitous, occurring across the bacterial domain. We show that such regulatory switching strongly impacts promoter architecture and expression divergence. We further show that regulatory transfer facilitates rapid phenotypic diversification of a human pathogen. This regulatory mobility enables bacterial genes to access a vast pool of potential regulatory elements, facilitating efficient exploration of the regulatory landscape.
2014-11-04 | GSE59468 | GEO
Project description:provide new perspectives and important resources for further exploring bioluminescence origin and evolution in insects
2019-08-30 | PXD015226 | iProX
Project description:provide new perspectives and important resources for further exploring bioluminescence origin and evolution in insects
2019-08-30 | PXD015227 | iProX
Project description:The altitude gradient limits the growth and distribution of alpine plants.Alpine plants have developed strategies to survive the extremely cold conditions prevailing at high altitudes; however, the mechanism underlying the evolution of these strategies remains unknown. The alpine plant Potentilla saundersiana is widespread in the Northwestern Tibetan Plateau. In this study, we conducted a comparative proteomics analysis to investigate the dynamic patterns of protein expression of P. saundersiana located at five different altitudes. We detected and functionally characterized 118 differentially expressed proteins. Our study confirmed that increasing levels of antioxidant proteins, and their respective activities, and accumulation of primary metabolites, such as proline and sugar, confer tolerance to the alpine environment in P. saundersiana. Proteins species associated with the epigenetic regulation of DNA stability and post-translational protein degradation were also involved in this process. Furthermore, our results showed that P. saundersiana modulated the root architecture and leaf phenotype to enhance adaptation to alpine environmental stress through mechanisms that involved hormone synthesis and signal transduction, particularly the cross-talk between auxin and strictosidine. Based on these findings, we conclude that P. saundersiana uses multiple strategies to adapt to the high-altitude environment of the Northwestern Tibetan Plateau.
2022-02-22 | PXD001112 | Pride
Project description:Aposematic color pattern mimicry in Heliconius butterflies provides a well-known example of adaptation via selection on a few genes of large effect. To understand how selection at individual genes can drive the evolution of complex traits, we functionally characterized five novel enhancers of the color pattern gene, optix. In Heliconius erato we found that wing pattern enhancers are largely ancestral, pleiotropic, functionally interdependent, and introgressed between populations. Remarkably, many of these enhancers are also associated with regional pattern variation in the distantly related co-mimics Heliconius melpomene and Heliconius timareta. Our findings provide a case study of how parallel co-evolution of ancient, multifunctional regulatory elements can facilitate the rapid diversification of complex phenotypes, and provide a counterpoint to many widespread assumptions of cis-regulatory evolution.
2021-06-04 | GSE123703 | GEO