Category Archives: pedigree

Population genomics in the “melting pot”

North America is full of new arrivals. Europeans colonized the continent starting half a millennium ago, displaced and eradicated native populations, and brought enslaved workers from Africa with them — and further immigrants have followed ever since. This mass movement … Continue reading

Share
Posted in genomics, pedigree | Tagged , , | 1 Comment

For these birds, isolation-by-distance is (almost) all in the family

Isolation by distance is one of the most fundamental processes of molecular ecology. In any finite population, the frequency of a genetic variant will change from generation to generation due to random sampling effects, which we call genetic drift. In … Continue reading

Share
Posted in natural history, pedigree, population genetics | Tagged | 1 Comment

Genomics of Hybridization – Part 1

In a series of articles, I will discuss recent advances in hybridization genomics – the fundamentals of adaptive introgression, “islands of speciation”, differential gene flow, and linked selection have been discussed in my previous posts (here, here, and also at … Continue reading

Share
Posted in adaptation, evolution, genomics, methods, natural history, next generation sequencing, pedigree, phylogenetics, plants, population genetics, RNAseq, software, speciation, species delimitation, STRUCTURE, theory, transcriptomics | Tagged , , , , , , | Leave a comment

Lonesome George, no longer?

Galapagos tortoises summon up images of great, lumbering beasts on idyllic islands that planted the seeds of natural selection in the young naturalist, Charles Darwin. In a recent paper, Poulakakis et al. (2015) provide genetic evidence of two lineages of tortoises … Continue reading

Share
Posted in conservation, DNA barcoding, natural history, pedigree, population genetics | Tagged , , , | Leave a comment

Large predators, large data, large conservation issues

We are a diverse group here at The Molecular Ecologist. Melissa writes love letters to sponges. Stacy takes you on exotic kelp road trips. Arun gives you another excuse to spend the afternoon playing with R. I feel that it is … Continue reading

Share
Posted in conservation, Molecular Ecology, the journal, pedigree | Tagged , , , | Leave a comment

Paternity matters in polyploid plants

In the most basic definition, polyploidy is a numerical increase in whole chromosome number. The effects of this increase in genomic material often produce novel morphologies compared to parental species, and polyploids have become both a huge part of explaining the … Continue reading

Share
Posted in pedigree, plants | 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

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