Category Archives: population genetics

Diving into chilly California waters, understanding genomic differentiation and the role of gene transfer in marine cyanophages

At this point, it’s clear: microbes are everywhere, there are a lot of them, and they are important. In fact, they are more abundant, more diverse and older than any other organism we have on this planet. In particular, cyanobacteria … Continue reading

Posted in Coevolution, evolution, genomics, horizontal gene transfer, microbiology, population genetics | Tagged , , | Leave a comment

Still ruffling feathers after all these years: Darwin’s finches and a molecular view of adaptive radiation

One of the many lovely things about molecular ecology is its ability to shine new light on old stories. The well-known case of Darwin’s finches is a classic example of adaptive radiation. These finches demonstrate a clear instance where over time, … Continue reading

Posted in adaptation, association genetics, evolution, genomics, Molecular Ecology, the journal, population genetics, RNAseq, selection, speciation | Tagged , , | Leave a comment

Building bridges across the chaos

In a new review, Eldon and co-authors (in press) attempt to build a bridge across the chaos of genetic patchiness in the sea. They i) describe the patterns characterized as chaotic genetic patchiness, ii) discuss the potential causes of these patterns and … Continue reading

Posted in evolution, genomics, mutation, natural history, next generation sequencing, phylogenetics, phylogeography, population genetics, selection | Tagged , , , | Leave a comment

Phenotypes in Comparative Phylogeography

Earlier this week, The Molecular Ecologist contributor Bryan McLean posted about the current state of comparative phylogeography (Riddle 2016). He listed several exciting directions that comparative phylogeography is heading, including more research that includes trait data. As a followup to … Continue reading

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A Comparative View of Comparative Phylogeography

A recent issue of PNAS includes papers from a Sackler Colloquium on comparative phylogeography. As stated by the organizers, a major purpose of that gathering “was to bring together leading scientists to address the current state of phylogeography as the … Continue reading

Posted in Coevolution, community, comparative phylogeography, phylogeography, population genetics | 1 Comment

On (mis)interpreting STRUCTURE/ADMIXTURE results

STRUCTURE, ADMIXTURE and other similar software are among the most cited programs in modern population genomics. They are algorithms that estimate allele frequencies and admixture proportions under the premise that sampled genotypes are derived from one of “K” ancestral populations, … Continue reading

Posted in bioinformatics, genomics, howto, methods, population genetics, software, STRUCTURE | Tagged , , , , | Leave a comment

The Genomics of Rapid Adaptation

Phenology (the timing of life cycle events such as growth, breeding, or migration) is among the most sensitive organismal traits to climate and environmental change. In recent years, phenological shifts have been documented in numerous taxa, in traits such as … Continue reading

Posted in adaptation, genomics, Molecular Ecology, the journal, plants, population genetics, selection | Leave a comment