#multicellularity — Public Fediverse posts

An exceptionally detailed #molecular explanation of how clonal #multicellularity, where all cells descend from a single ancestor, can be achieved and controlled at the #genetic level.
#MolecularBiology #EvolutionaryBiology #MarineBiology #sflorg
https://www.sflorg.com/2026/01/mbio01082602.html

#3D structure of the social #amoeba #genome sheds light on the transition to #multicellularity.

#Dictyostelium #chromosomes #chromatin_looping #RNA_polymerase

https://phys.org/news/2025-02-3d-social-amoeba-genome-transition.html

#3D structure of the social #amoeba #genome sheds light on the transition to #multicellularity.

#Dictyostelium #chromosomes #chromatin_looping #RNA_polymerase

https://phys.org/news/2025-02-3d-social-amoeba-genome-transition.html

"As seawater gets colder, it grows thicker. It’s basic physics — the density and viscosity of water molecules rises as the temperature drops. Under the conditions of Snowball Earth, the ocean would have been twice or even four times as viscous as it was before the planet froze over. Simpson wondered what it would have been like to be a microscopic organism in the ocean during Snowball Earth."

https://www.quantamagazine.org/the-physics-of-cold-water-may-have-jump-started-complex-life-20240724/

#BioPhysics #SnowballEarth #ComplexLife #Multicellularity #EvolutionaryBiology

"By testing a series of alternative—& commonly debated—hypotheses, we demonstrate how #multicellularity was likely acquired differently in #eukaryotes & #prokaryotes owing to selective differences on their size due to the biophysical & #metabolic regimes they inhabit: decreasing temperatures... instigated by the onset of glaciations generated selective pressures towards smaller sizes in organisms in the diffusive regime & towards larger sizes in motile heterotrophs"

https://royalsocietypublishing.org/doi/10.1098/rspb.2023.2767

#Macroalgae #genetics study sheds light on how seaweed became multicellular
https://phys.org/news/2024-04-macroalgae-genetics-seaweed-multicellular.html

Macroalgal deep #genomics illuminate multiple paths to aquatic, photosynthetic multicellularity https://www.cell.com/molecular-plant/fulltext/S1674-2052(24)00084-4

"Three lineages of #algae developed #multicellularity independently and during very different time periods by acquiring genes that enable cell adhesion, extracellular matrix formation, and cell differentiation"

#Fossils show that #eukaryotes first acquired #multicellularity 1.63 billion years ago
https://phys.org/news/2024-01-north-china-fossils-eukaryotes-multicellularity.html

1.63-billion-year-old #multicellular eukaryotes from the #Chuanlinggou Formation https://www.science.org/doi/10.1126/sciadv.adk3208

"#Qingshania was most likely #photosynthetic #algae, probably belonging to the extinct stem group of #Archaeplastids (a major group consisting of red algae, green algae and land #plants, as well as #glaucophytes)"

The #LTEE now has a companion! So exciting!!
#MuLTEE #multicellularity #evolution #biology #EvolutionaryBiology #ExperimentalEvolution

https://www.nature.com/articles/s41586-023-06052-1

Did flooding force bacterial #multicellularity? https://micro-bites.org/2022/11/07/did-flooding-force-bacterial-multicellularity/ #MulticellularBacteria #Bacteria #Microbes #Caves

Paper: Novel multicellular #prokaryote discovered next to an #underground stream https://elifesciences.org/articles/71920

How life went from one cell to #multicellular is a hotly debated topic among #scientists... A #limestone #cave in the northern #Kyushu Island of #Japan was hiding one clue: a fascinating new organism!