#molevol — Public Fediverse posts

Recombination is disrupted in Brassica allotriploids, which may have helped form rapeseed. New study by Pelé et al. shows extra C chromosomes reshape crossover patterns, with effects differing between B. oleracea and B. napus.

🔗 https://doi.org/10.1093/molbev/msaf073

#evobio #molevol #plants

New study by Petroll et al. traces the evolution of epigenetic silencing in plants. PRC2-mediated H3K27me3 marks show deep conservation across green algae and preferentially target land plant genes, revealing ancient, conserved networks of gene repression.

🔗 https://doi.org/10.1093/molbev/msaf064

#evobio #molevol #plants

New article by Li & Zhang on adaptive walks in E. coli DHFR gene shows this model has a high chance of reaching top peaks in a multipeak fitness landscape, but this is likely an exception among simulated and empirical fitness landscapes.

🔗 https://doi.org/10.1093/molbev/msaf066

#evobio #molevol #adaptation

Molecular Evolution #MolEvol identified adaptive evolution of #ba286 lineage in August 2023 (reminder: 32 non-synonymous substitutions, including 22 in Spike, and only 11 synonyms) while still at very low frequency. #ba286 has now come to dominate globally 👇

https://ecoevo.social/@firefoxx66@mstdn.science/111964032240034358

Molecular Evolution #MolEvol identified adaptive evolution of #ba286 lineage in August 2023 (reminder: 32 non-synonymous substitutions, including 22 in Spike, and only 11 synonyms) while still at very low frequency. #ba286 has now come to dominate globally 👇

https://ecoevo.social/@firefoxx66@mstdn.science/111964032240034358

Molecular Evolution #MolEvol identified adaptive evolution of #ba286 lineage in August 2023 (reminder: 32 non-synonymous substitutions, including 22 in Spike, and only 11 synonyms) while still at very low frequency. #ba286 has now come to dominate globally 👇

https://ecoevo.social/@firefoxx66@mstdn.science/111964032240034358

Molecular Evolution #MolEvol identified adaptive evolution of #ba286 lineage in August 2023 (reminder: 32 non-synonymous substitutions, including 22 in Spike, and only 11 synonyms) while still at very low frequency. #ba286 has now come to dominate globally 👇

https://ecoevo.social/@firefoxx66@mstdn.science/111964032240034358

Prdm9-directed and Prdm9-independent hotspots co-exist in mammals, a new study by @Julien_JOSEPH @duret_lbbe et al. says #PopGen #MolEvol #MustRead 👇

https://ecoevo.social/@Julien_JOSEPH/111442387781864973

https://www.biorxiv.org/content/10.1101/2023.11.17.567540v1

Molecular Evolution #MolEvol identified adaptive evolution of #ba286 lineage in August (reminder: 32 non-synonymous substitutions, including 22 in Spike, and only 11 synonyms) while still at very low frequency. #ba286 now takes of in November. How can anyone still doubt about the incredible predictive power of #MolEvol #PopGen?

Je crois que c'est une des premières #ERCStG portée par l'@umontpellier décrochée en Sciences de la Vie section LS8 (Ecologie & Evolution). Toutes mes félicitations à Erika Burioli pour son projet HYPERCAN sur le cancer transmissible des moules 🥳 #TransCan #MusselsAreCool #MolEvol #WomenInSTEM
https://erc.europa.eu/news-events/news/erc-2023-starting-grants-results

Let's be clearer. New SARS-CoV-2 variant BA.2.86 #ba286 Pirola might not sweep. However, it makes little doubt it went through a kind of adaptive evolution phase given the dN/dS ratio in its branch. #MolEvol

https://ecoevo.social/@couplingdmi/110939976131616585

It's been a while we've seen a branch of this size in the phylogeny of SARS-CoV-2. Is this a new hopeful monster? On the face of it, no: only 9 sequences spread across the globe to date, if it sweeps it's hiding its true colours. However, a global sweep cannot be completely ruled out in the current context. #ba286 #MolEvol

https://ecoevo.social/@firefoxx66@mstdn.science/110910547096634806