Tag Archives: population genetics

Kelp forests: the underwater woodlands

Posted on 16 January, 2019 by Stacy Krueger-Hadfield

Aisha O’ Connor wrote this post as a project for Stacy Krueger-Hadfield’s Conservation Genetics course at the University of Alabama at Birmingham. She sat in on lectures while she was at UAB as part of a British Phycological Society Student Bursary … Continue reading →

Posted in blogging, ecology, evolution, fieldwork, haploid-diploid, natural history, population genetics, Science Communication | Tagged , , , , , , | Leave a comment

La vie en rouge … l’algue rouge

Posted on 4 June, 2018 by Stacy Krueger-Hadfield

Best laid plans of a #NewPI … what happens to them? Well, they often get triaged for more urgent things that were triaged earlier for more urgent things that were also triaged even earlier for more urgent things … and … Continue reading →

Posted in adaptation, bioinformatics, blogging, conferences, evolution, fieldwork, haploid-diploid, mating system, natural history, population genetics, selection | Tagged , , , , , , , , | Leave a comment

When less might be more: The evolution of reduced genomes

Posted on 23 June, 2017 by Kelle Freel

The advent of affordable genome sequencing has provided us with a wealth of data. Researchers have sequenced everything from Escherichia coli (4.6 Mbp genome size), to sea urchins (810 Mbp), chimpanzees (3.3 Gbp), and humans (3.2 Gbp). Then there are the … Continue reading →

Posted in adaptation, Coevolution, evolution, genomics, microbiology, population genetics, selection | Tagged , , , | Leave a comment

Shared patterns of genomic diversity across populations of distantly related taxa

Posted on 5 June, 2017 by Arun Sethuraman

Genomic diversity is shaped by the complex interplay between the effects of genetic drift and natural selection among populations. Several of these effects, especially those of linked selection at neutral sites, adaptive introgression, and barriers to migration (often called “genomic … Continue reading →

Posted in adaptation, bioinformatics, birds, evolution, genomics, population genetics, selection | Tagged , , , , , | Leave a comment

Deep in the meadow, under the … seagrass, a bed of temporally stable diversity?

Posted on 16 March, 2017 by Stacy Krueger-Hadfield

Genetically diverse populations are often more stable and productive. For habitat-forming organisms, such as seagrasses, this results in increased habitat complexity and more abundant associated communities (e.g., Hughes and Stachowicz 2004, Reusch et al. 2005).  Spatial patterns of genetic diversity … Continue reading →

Posted in adaptation, community ecology, conservation, evolution, phylogeography, population genetics | Tagged , , , , , , | Leave a comment

Have we got the power?

Posted on 9 March, 2017 by Stacy Krueger-Hadfield

Sabrina Heiser wrote this post as a final project for Stacy Krueger-Hadfield’s Science Communication course at the University of Alabama at Birmingham. Sabrina grew up in Germany, completed a BSc (Hons) in Marine Biology at Plymouth University (UK) and then lived … Continue reading →

Posted in blogging, community ecology, evolution, haploid-diploid, natural history, NSF, population genetics | Tagged , , , , , , , | 1 Comment

Divergence and Linked Background Selection

Posted on 22 September, 2016 by Arun Sethuraman

We have widely discussed the reduction in neutral diversity due to demography and linked selection effects (e.g. selective sweeps and hitchhiking, or background selection) in several previous posts (e.g see here, here, and here). However, how linked selection affects neutral divergence … Continue reading →

Posted in evolution, genomics, methods, selection, speciation, theory | Tagged , , , , , | 1 Comment

On (mis)interpreting STRUCTURE/ADMIXTURE results

Posted on 5 August, 2016 by Arun Sethuraman

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 , , , , | 1 Comment

What do dolphins, bivalves and algae have in common?

Posted on 15 July, 2016 by Stacy Krueger-Hadfield

Collaboration as it turns out, between three scientists interested in vertebrates, invertebrates and algae! A few days before we left for Evolution 2016 in Austin, one of my collaborators, Eric Pante, came to Charleston as the final stop in a North American … Continue reading →

Posted in bioinformatics, blogging, career, conferences, DNA barcoding, haploid-diploid, natural history, phylogenetics, phylogeography, population genetics | Tagged , , , , , | Leave a comment

The Great Migration and African-American Genomic History

Posted on 1 June, 2016 by Arun Sethuraman

Over 45 million African-Americans share a recent common history largely shaped by “The Great Migration” (1910-1970) from out of the Southern United States. And yet, the admixture history of the African-American community, and its consequences for public health are little … Continue reading →

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