Category Archives: phylogenetics

Introgression history in sticklebacks and oaks

Speciation theory has many monikers for differential gene flow – migration, introgression, admixture, hybridization, secondary contact. As a homogenizing process, gene flow at large acts to reduce differentiation between populations post-divergence. However, selection and demography affect the rates of gene … Continue reading

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Posted in adaptation, evolution, genomics, natural history, phylogenetics, population genetics, selection, speciation, species delimitation | Tagged , , , , , | 1 Comment

Measuring dispersal rate in Neotropical fishes in units of ‘wallace’

Alfred Russel Wallace often gets second billing compared to Charles Darwin but in a paper recently accepted at Systematic Biology, Tagliacollo et al.  define a new term for their analyses (dispersal rate, D) and measure D in units of ‘wallaces‘ (wa) to honor the contributions of Alfred … Continue reading

Posted in methods, phylogenetics, phylogeography, Uncategorized | 1 Comment

The Goldilocks zone of missing data

Reduced representation sequencing approaches, such as RADseq and UCEs, have provided some fascinating inferences in recent years, but something has always been missing in these analyses: data. As sampled taxa become more divergent, the price paid for more loci is … Continue reading

Posted in evolution, methods, next generation sequencing, phylogenetics | Tagged , , , | Leave a comment

Small mammalian genomics of adaptation

While large mammals have had their day on our blog, two recent studies on small mammals reveal the genetics of size evolution in island mice, and differential introgression of mitochondrial and nuclear genomes in chipmunks – steps towards understanding the … Continue reading

Posted in adaptation, domestication, evolution, genomics, natural history, pedigree, phylogenetics, population genetics, selection | Tagged , , , | Leave a comment

And who made your beer?

In the spirit of it being almost Friday, and while we’re on the topic of your favorite beverages – perhaps wine puts you to sleep, couldn’t care less where it came from, but prefer the bitterness of lager beers at your … Continue reading

Posted in adaptation, evolution, genomics, natural history, next generation sequencing, phylogenetics, population genetics, selection, speciation, yeast | Tagged , , , , | 2 Comments

Where’s your wine from?

Human-mediated selection of yeast cultures has played a huge role in the development of numerous unique strains of Sacchromyces cerevisiae, often attributed to production of a wide variety of wines the world over. Previous studies have indicated a single domesticated … Continue reading

Posted in domestication, evolution, genomics, horizontal gene transfer, microbiology, Molecular Ecology, the journal, next generation sequencing, phylogenetics, phylogeography, population genetics, STRUCTURE, yeast | Tagged , , , | 1 Comment

Fossils and phylogenetics meet in the evolutionary middle

…if evolutionary biologists are intent on documenting the history of life, we need methods that can at least approximate patterns of evolution in deep time for clades without fossil information. A scientists who wants to understand the evolutionary history of … Continue reading

Posted in phylogenetics | Tagged , , | 2 Comments

Notes from Edmonton and #Botany2015

As noted previously, I broke with my usual habit and skipped the Evolution meetings this year. Instead, I attended Botany 2015, a joint meeting of multiple U.S. and Canadian plant-focused scholarly societies held in Edmonton, Alberta — I’d never been … Continue reading

Posted in bioinformatics, conferences, genomics, natural history, phylogenetics, plants, population genetics | Tagged | 1 Comment

Grasping gorgonians

A recent issue of Heredity focused on the brave new world of environmental genomics. After highlighting the special issue, I started chatting to one of the contributors, Eric Pante and became interested in his work on gorgonians. Eric and his co-authors explored the … Continue reading

Posted in bioinformatics, Coevolution, evolution, genomics, mutation, phylogenetics | Tagged , , , , , | 1 Comment

Just in time for spring break- the phylogenetic and medicinal history of Aloe vera

It’s spring break season across the United States, which means many undergraduates are shedding their winter layers and flocking to warm, tropical destinations. After a week of fun in the sun, I’m sure many of them will rely on  Aloe vera to soothe their sunburns. … Continue reading

Posted in medicine, phylogenetics, plants, Uncategorized | Leave a comment