Category Archives: genomics

Molting on the molecular level: how blue crabs become soft-shell crabs

Megan Roegner wrote this post as a final project for Stacy Krueger-Hadfield’s Science Communication course at the University of Alabama at Birmingham. Megan spent her early years in Cape Town, South Africa playing in the tidal pools along the coast and developing … Continue reading

Posted in bioinformatics, blogging, conservation, domestication, evolution, genomics, natural history | Tagged , , , , , | 1 Comment

Hybridization and adaptive radiations

As an iconic system in evolutionary biology, I’ve always been interested in African cichlids and the origins of their diversity1. These cichlids represent an adaptive radiation; they’ve evolved rapidly from a single origin to exploit and speciate into open niches … Continue reading

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How much wood would a termite chuck…if it was missing its microbial symbionts

Termites get a pretty bad rap, probably because we think of our houses disintegrating when they move in. Ironically, we have a lot to learn from these critters, and their mounds have served as an inspiration for modern architecture. Either … Continue reading

Posted in Coevolution, evolution, genomics, microbiology | Tagged , , , , | 1 Comment

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

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Music to an amniote's ears, an "accordion" model of genome size evolution

How did we get where we are? Genetically speaking, that is. A few posts ago, that whole genotype-phenotype question was discussed, how do genomes make plants and animals (and don’t forget the microbes!) look and act how they do. Another … Continue reading

Posted in adaptation, bioinformatics, evolution, genomics | Tagged , , , | 2 Comments

That's an H. erato of a different color!

What drives different coloration among birds, insects, flowers? One of the major goals in evolutionary studies is understanding what is going on in DNA that makes organisms different. A fancy way to say this is studying how an organism’s genotype … Continue reading

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The seeds of speciation

You don’t have to get very far into an evolution textbook before you bump into Darwin’s finches, the birds descended from South American finches that colonized the Galapagos Islands and “radiated” into an array of different species, each with a … Continue reading

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Resurrecting our ghosts: Helen Pilcher’s Bring Back the King

The Molecular Ecologist receives a small commission for purchases made on Bookshop.org via links from this post. On September 7, 1936, at the Beaumaris Zoo in Hobart, Tasmania, a wolf-like creature named Benjamin paced up and down in his cage. As night fell, … Continue reading

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Diving into the inbreeding depression

This post is going to be a little melodramatic, but I hope that despite all the reading on inbreeding depression, you won’t get depressed. As the media finally started feeding us all the catastrophic news about the impact of global … Continue reading

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Handling microbial contamination in NGS data

Until recently, I had given little thought to the potential for unwanted microbial contamination in high throughput sequence data. I suspect that if you’re a molecular ecologist who doesn’t primarily study microbes or work with ancient DNA, you’re in a … Continue reading

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