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Tag: evolution

  • Episode

TWiEVO 35: Strawberry sex chromosomes forever

  • September 21, 2018
  • Tagged as: Dioecy, diversity, evolution, fertilization, genome, Homoeologs, Homomorphic, jumping sex genes, octoploid, parasites, reproduction, sex, sex chromosome, strawberry

Nels and Vincent reveal that female-specific DNA associated with sex in strawberries has repeatedly changed its genomic location, possibly linking new genes with sex.

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  • Episode

TWiEVO 34: You don’t know what you’ve got ‘til it’s PON

  • August 16, 2018
  • Tagged as: agricultural runoff, cetacean, evolution, gene loss, marine mammal, natural selection, organophosphorus, paraoxonase, pesticide, pinniped, sirenian

Nels and Vincent discuss how the loss of an enzyme in marine mammals millions of years ago now makes them at risk for neurotoxicity caused by human-made organophosphorous pesticides.

2 Replies
  • Episode

TWiEVO 33: Fly by virus

  • July 24, 2018
  • Tagged as: behavior modification, Coccinellidae, Cordyceps, diptera, Entomophthora muscae, evolution, fungus, iflavirus, microbial control of hosts, viral, virology, virus, viruses

Nels and Vincent are astounded by the finding of an insect-derived virus in a fungus that manipulates the behavior of flies.

1 Reply
  • Episode

TWiEVO 32: Never not neutral

  • June 19, 2018
  • Tagged as: adaptation, evolution, mutation, natural selection, neutral theory of evolution, population genetics, spandrel, TWiEVO

Matt joins Nels and Vincent to discuss the neutral theory of evolution and its rejection in light of genome-scale data.

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  • Uncategorized

TWiEVO 31: Virus archaeology, or when the human genome is the junk

  • May 19, 2018
  • Tagged as: ancient DNA, ancient viral genome, Bronze Age, evolution, hepatitis B virus, Medieval period, viral, virology, virus, virus archaeology

Nels and Vincent present ancient hepatitis B virus genome sequences from Bronze Age to Medieval period human remains.

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  • Episode

TWiEVO 30: Driving Miss Maize-y

  • April 21, 2018
  • Tagged as: chromosome segregation, corn, evolution, Kindr, kinesin, maize, natural selection, neocentromere, non-Mendelian inheritance

Nels and Vincent reveal how a motor protein in corn causes preferential transmission of chromosomes to egg cells, leading to non-Mendelian inheritance

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  • Episode

TWiEVO 29: Evolution on the wing

  • March 21, 2018
  • Tagged as: blood feeding, blood meal, evolution, evolution of virulence, house finch, incomplete immunity, mosquito, mycoplasma, natural selection, nonbiting mosquito, transcriptome

Nels and Vincent discuss the evolution of blood feeding to nonbiting in a mosquito, and evolution of bacterial virulence in the house finch caused by incomplete host immunity.

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  • Episode

TWiEVO 27: Coldevo

  • January 13, 2018
  • Tagged as: cold sensitivity, evolution, hibernation, ion channel, somatosensory neuron, Syrian hamster, thirteen-lined ground squirrel, TRPM8

Taking a cue from the recent frigid weather, Nels and Vincent explore how modifications of a neuronal cold-sensing channel regulate diminished cold sensitivity in hibernating mammals.

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  • Episode

TWiEVO 26: My Scientist Vinny

  • December 7, 2017
  • Tagged as: apoptosis, cancer, DNA damage, elephant, evolution, large body size, LIF gene, p53, Peto's Paradox, recombination, segmental duplication

Vinny Lynch joins Nels and Vincent to discuss how a zombie gene in elephants protects these large, long lived animals from cancer.

4 Replies
  • Episode

TWiEVO 25: Pigeons show the way

  • November 22, 2017
  • Tagged as: drift, evolution, extinction, genome, mitochondrial genome, mutation, natural selection, passenger pigeon, population

Nels and Vincent discuss a genomic analysis of the passenger pigeon, which shows that species with large and stable populations may be at risk of extinction after a sudden environmental change.

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The Hosts of TWiEVO

Nels Elde, Ph.D.


Vincent Racaniello, Ph.D.


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Please note that content in MicrobeTV podcasts should not be construed as medical advice.

MicrobeTV is an independent podcast network for people who are interested in the sciences. Our shows are about science: viruses, microbes, parasites, evolution, urban agriculture, immunology, neuroscience, and infectious diseases.

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