Alexander PohleJust bridged my account from Mastodon to Bluesky using @bsky.brid.gy so you can now follow me on either platform! Still relatively new to all of this, trying to figure things out as I go ...
Fabio Barteri 🇵🇸🧬 New post on The Brownian Notion
🐸🦎 Frogs, salamanders, and jumping genes: amphibian genomes are messy, huge, and full of stories about how DNA moves, adapts, and evolves. #transposons #mobileDNA #evolution #macroevolution #genomics
https://substack.com/home/post/p-175407494
🐸🦎 Frogs, salamanders, and jumping genes: amphibian genomes are messy, huge, and full of stories about how DNA moves, adapts, and evolves. #transposons #mobileDNA #evolution #macroevolution #genomics
https://substack.com/home/post/p-175407494
American NaturalistTill Selection Do Us Part? Testing Sexual Selection’s Role in Speciation
Summary & Analysis by Pooja Radhakrishnan of "Evolutionary lability of sexual selection and its implications for speciation and macroevolution" by Januario et al.
https://www.amnat.org/an/newpapers/April-2025-Januario.html
Till Selection Do Us Part? Testing Sexual Selection’s Role in Speciation
<p>Read about “Evolutionary lability of sexual selection and its implications for speciation and macroevolution” by Matheus Januario, Renato C. Macedo-Rego, and Daniel L. Rabosky (April 2025)</p><br/><br/><p><b>Januario et al. found no correlation between sexual selection intensity & speciation rates or proxy traits (SSD and dichromatism). Because sexual selection intensity has high intraspecific variation and low phylogenetic signal, its macroevolutionary impacts are weak </b></p><br/>
Check out our new article introducing phylogeochemistry, combining #macroevolution with #geochemistry. We investigated evolutionary patterns of element ratios in #belemnites through the Jurassic and Cretaceous.
Simon et al. compared the role of constraints and selection on function to align micro- and macroevolutionary patterns of hindlimb trait covariation in frogs. They inferred that species tracked jumping performance peaks mostly along lines of least resistance within-species. Read now ahead of print!
https://www.journals.uchicago.edu/doi/10.1086/735569
#evolution #macroevolution #species #performance #hindlimb #covariation
Cytology and GeneticsGenetic Differentiation and Evolutionary Transition-Transversion Bias in Vertebrates by the Example of the CYTB Gene with Emphasis on Mammals and Primates - #microevolution #macroevolution #transitiontransversionbias #mutationprocess #geneticsaturation #generegulation - https://link.springer.com/article/10.3103/S0095452724060045
Genetic Differentiation and Evolutionary Transition-Transversion Bias in Vertebrates by the Example of the CYTB Gene with Emphasis on Mammals and Primates - Cytology and Genetics
Abstract A negative answer to the question about the reducibility of genetic processes at the level of macroevolutionary events to microevolutionary ones has been obtained by analyzing the evolutionary transition-transversion bias and estimating the rates of molecular transformations in a number of vertebrates by the example of the CYTB gene. As a result, it has been established that, at a divergence at a level below families, the frequency of transitions sustains “a jump,” due to which the rate of molecular evolutions increases by an order of magnitude, whereas there occurs a slight predominance of transversion frequencies with a synchronous linear increase in the frequency of different nucleotide substitutions at the levels of orders and higher. An obvious reason for distinctions between the genetic processes of micro- and macroevolution is the leading role of spontaneous mutations in the formation of species. Their canalization results in stable morphological distinctions formed during postnatal ontogenesis. At the same time, the stages of macroevolution are associated with the transformation of organogenesis to be fixed with by changes in the sets of genes governing the nature of gene regulation and the interaction of genes in development.
Januario et al. found no correlation between sexual selection intensity & speciation rates or proxy traits. Because sexual selection intensity has high intraspecific variation and low phylogenetic signal, its macroevolutionary impacts are weak. Read now!
https://www.journals.uchicago.edu/doi/10.1086/734457
#sexualSelection #speciation #intraspecificVariation #phylogenetics #macroevolution
Orlando Schwery🚨New #phylogenetic paper alert!🚨
🌲+🔥= speciation?
This one has been a bit of a journey, but thanks to lead author Dan Turck's expertise on #conifers it has turned out as quite the treasure-trove of conifer #Evolution !
https://doi.org/10.1002/ajb2.16454
(reading-access link on my website)
#AJB #macroevolution #botany
Thomas GuillermeInterested in doing a PhD in Sheffield on traits innovation and elaboration in the North Sea with myself, Tom Webb and Katie Fields? Have a look at this funding opportunity: https://www.findaphd.com/phds/project/acce-dla-programme-traits-innovation-and-elaboration-in-marine-ecosystems/?p176792
#macroevolution #macroecology #rstats #phd
#macroevolution #macroecology #rstats #phd
Jim Donegan 🎵 ✅#DerekTurner - #Philosophy of #EvolutionaryBiology
https://www.youtube.com/watch?v=X3KPS7Yi7aY
#Philosophy #PhilosophyOfScience #Science #PhilosophyOfBiology #Biology #Evolution #Microevolution #Macroevolution #Stasis #Contingency #Selection #NaturalSelection #CloserToTruth #RobertKuhn
