Ontology highlight
ABSTRACT:
PROVIDER: PRJNA540287 | ENA |
REPOSITORIES: ENA
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Project description:The páramo ecosystem has the highest rate of diversification across plant lineages on earth, of which the genus Espeletia (Asteraceae) is a prime example. The current distribution and molecular phylogeny of Espeletia suggest the influence of Andean geography and past climatic fluctuations on the diversification of this genus. However, molecular markers have failed to reveal subtle biogeographical trends in Espeletia diversification, and metabolomic evidence for allopatric segregation in plants has never been reported. Here, we present for the first time a metabolomics approach based on liquid chromatography-mass spectrometry for revealing subtle biogeographical trends in Espeletia diversification. We demonstrate that Espeletia lineages can be distinguished by means of different metabolic fingerprints correlated to the country of origin on a global scale and to the páramo massif on a regional scale. Distinctive patterns in the accumulation of secondary metabolites according to the main diversification centers of Espeletia are also identified and a comprehensive phytochemical characterization is reported. These findings demonstrate that a variation in the metabolic fingerprints of Espeletia lineages followed the biogeography of this genus, suggesting that our untargeted metabolomics approach can be potentially used as a model to understand the biogeographic history of additional plant groups in the páramo ecosystem.
2018-11-20 | MTBLS445 | MetaboLights
Project description:A backbone phylogeny of the American clade oaks Raw sequence reads
| PRJNA277751 | ENA
Project description:Correspondence between evolution and development has been discussed for more than two centuries. Recent work reveals that phylogeny-ontogeny correlations are indeed present in developmental transcriptomes of eukaryotic clades with complex multicellularity. Nevertheless, it has been largely ignored that the pervasive presence of phylogeny-ontogeny correlations is likely a hallmark of development in eukaryotes. This perspective opens a possibility to look for similar parallelisms in biological settings where developmental logic and multicellular complexity are more obscure. For instance, it has been increasingly recognized that multicellular behavior underlies biofilm formation in bacteria. However, it remains unclear whether bacterial biofilm growth shares some basic principles with development in complex eukaryotes. Here we show that ontogeny of growing Bacillus subtilis biofilms recapitulates phylogeny at the expression level. Using finely resolved transcriptome and proteome profiles, we found that biofilm ontogeny correlates with the evolutionary measures. Early-stage biofilms expressed older and more conserved genes, while later-stage biofilms progressively used evolutionary younger and more diverged genes. Molecular and morphological signatures also revealed that biofilm growth is highly regulated and organized into discrete ontogenetic stages, similar to those of eukaryotic embryos. In conjunction this suggests that biofilm formation in Bacillus is a bona fide developmental process comparable to organismal development in animals, plants and fungi. Given that most cells on Earth reside in the form of biofilms and that biofilms represent the oldest known fossils, we anticipate that the widely-adopted vision of the first life as a single-cell and free-living organism needs rethinking.
2020-10-07 | PXD016656 | Pride
Project description:Fully Resolved Assembly and Comparative Genomics of Fusarium proliferatum DSM106835
| PRJEB64160 | ENA
Project description:Phylogeny and taxonomy of the Andean Gynoxys group (Asteraceae, Senecioneae, Tussilagininae)
| PRJEB53579 | ENA
Project description:Phylogeny and Biogeography History of Atrophaneura sensu lato
| PRJNA981426 | ENA