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Author Archives: Kelle Freel
When less might be more: The evolution of reduced genomes
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 ecology, Evolution, genome streamlining, population genetics
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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 Desulfovibrio, protist, symbiosis, termites, whole genome amplification
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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 adaptation, amniote evolution, natural selection, transposable elements
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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
Posted in evolution, genomics, phylogeography
Tagged butterfly, Heliconius erato, phenotype genotype
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