Subscribe by email
Join 884 other subscribersMeta
Category Archives: Coevolution
A new (quantitative!) method for comparative phylogeography
Comparative phylogeographic studies usually involve a) documenting a phylogeographic pattern and b) recognizing that the same pattern is congruent in multiple species. But what if species histories are only sortof congruent? Perhaps they share one major splitting event but not later … Continue reading
Posted in Coevolution, phylogeography, plants, software
Tagged comparative phylogeography, concordance factors
5 Comments
One of these things is not like the other……
While we know that bacteria are pretty scandalous with their DNA, not minding horizontal gene transfer (HGT) and such (which can be pretty confounding when trying to discuss species concepts), and although it’s clear that this kind of genetic material … Continue reading
When times are good or bad, happy or sad, viral quasispecies like to stay together
We’ve known for a long time that symbioses are important across all walks of life. Clownfish and sea anemones are obligate symbionts, and bacteria found in legume root nodules help fix nitrogen. In a nice review published recently in Evolutionary … Continue reading
Posted in adaptation, Coevolution, evolution
Tagged Evolution, holobiont, human health, quasispecies
Leave a comment
A race to the bottom with a new card from the coevolutionary deck
I’m a sucker for a clever, amusing title, though I’ve recently read that amusing titles are cited less (see here). Alas, maybe a well placed metaphor can enliven a manuscript and also not get lost in a citation-less abyss? In basic … Continue reading
Posted in Coevolution, evolution, horizontal gene transfer, microbiology, selection
Tagged Black Queen Hypothesis, co-evolution, microbes
Leave a comment
Anti-predatory adaptations in sticklebacks and butterflies
Two recent studies analyze character shifts in response to different selection regimes – (1) Mullerian mimicry wing patterns in Heliconius butterflies, and (2) anti-intraguild-predator adaptations in armor and shape of threespine sticklebacks. Hoyal Cuthill and Charleston 2015 Wing patterning genes … Continue reading
On background selection in Ficedula flycatchers
Several recent studies (including those I wrote about last week) use genome-wide scans of differentiation to understand evolutionary mechanisms behind high or low divergence. However, there has been contentious support for and against these differentiation islands being due to differential … Continue reading
Sweptaway – Part 3 – Adaptation genomics of White Sands Lizards
Recent colonization events offer juicy insights into the adaptive evolution of species in response to natural selection of novel habitats – however, they are confounded by demographic changes (eg. bottlenecks, differential migration). In a recent study, Laurent et al. (2015) … Continue reading