This Week in Evolution

Episode

TWiEVO 42: Who’s who in your genome

April 24, 2019
Tagged as: adaptation, archaic human, Denisovan, evolution, genome sequences, hominid, introgression, natural selection, Papuans

Nels and Vincent review the contribution of multiple Denisovan lineages to the modern Papuan genome.

Hosts: Nels Elde and Vincent Racaniello

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Denisovan ancestries in Papuans (Cell) 3:12, 18:21
Prof Murray Cox 4:09
Image credit
Letters read on TWiEVO 42 1:06:48
Time stamps by Jolene. Thanks!

Science Picks 1:12:32

Nels – Sydney Brenner – What Genomes Can Tell Us About the Past

Vincent – Scientific Communication in a Post-Truth Society

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Episode

TWiEVO 41: Where do baby genes come from?

March 20, 2019
Tagged as: adaptive evolution, antifreeze protein, de novo gene, evolution, natural selection, nogenic, noncoding gene, noncoding origin, northern codfish, proto-ORF

Nels and Vincent explore the evolution of new protein-coding genes de novo from noncoding DNA sequences, using the antifreeze protein of northern codfish as a model.

Hosts: Nels Elde and Vincent Racaniello

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Evolution of antifreeze protein gene in codfish (PNAS) 4:13
Codfish diversity (Cheng lab) 10:03
Frankentomatoes (Huff Post) 56:41
Image credit
Time stamps by Jolene. Thanks!

Science Picks 1:15:38

Nels – Science at Sundance reviews

Vincent – The Rise and Fall of Scientific Authority

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Episode

TWiEVO 40: Eau de bee

February 15, 2019
Tagged as: courtship display, evolution, natural selection, odorant receptor, olfactory receptor, orchid bee, reproductive isolation, speciation, species identity

Nels and Vincent move back to reproductive isolation – this time, pre-zygotic, in the charismatic orchid bee where the males make chemically distinct perfumes to attract mates of the same species.

Hosts: Nels Elde and Vincent Racaniello

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Olfactory receptor gene underlies reproductive isolation (biorXiv) 4:49
Image credit
Time stamps by Jolene. Thanks!

Science Picks 59:59

Nels – Nature Zen: Orchid Bees Are Shiny
Vincent – What You Believe About Science Denial May Be All Wrong

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Episode

TWiEVO 39: In a Legionella of their own

January 26, 2019
Tagged as: amoeba, DOT/ICM, effector proteins, evolution, evolve, horizontal gene transfer, host range, intracellular bacteria, Legionella

Nels and Vincent look at the intracellular bacteria Legionella from an evolutionary perspective: the role of gene acquisition and reshuffling from plants, animals, fungi, and archaea in the emergence of human pathogens.

Hosts: Nels Elde and Vincent Racaniello

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Over 18,000 effectors in Legionella genome (PNAS) 4:08
Carmen Buchrieser lab 4:31
Howard Shuman 10:04
Image credit

Science Picks 1:06:46

Nels – Science in Film (twitter)
Vincent – Lunar Eclipse 101

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Episode

TWiEVO 38: Evolving to evolve

December 24, 2018
Tagged as: anti-evolution drug, antibiotic resistance, bacteria, evolution, evolvability, Mfd protein, mutagenesis, mutation rate, RpoB, transcription-coupled repair, UvrA

Nels and Vincent reveal a highly conserved protein that acts as an evolvability factor, increasing mutation and the ability of bacteria to become resistant to antibiotics.

Hosts: Nels Elde and Vincent Racaniello

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Inhibiting evolution of antibiotic resistance (Mol Cell) 1:47
Pushing viruses over the error threshold (virology blog) 48:22
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Letters read on TWiEVO 38 57:58

Science Picks 1:11:48

Nels – Science/nature illustrator/artist Rachel Ignotofsky (website, Etsy shop)
Vincent – Life Ascending by Nick Lane

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Episode

TWiEVO 37: A tangled tree on the Quammens

November 17, 2018
Tagged as: Carl Woese, Charles Darwin, David Quammen, evolution, evolutionary tree, horizontal gene transfer, Lynn Margulis, phylogenomics, The Tangled Tree

David Quammen joins Nels and Vincent to talk about his new book, A Tangled Tree, including evolutionary trees, Carl Woese, Lynn Margulis, horizontal gene transfer, and much more.

Hosts: Nels Elde and Vincent Racaniello

Guest: David Quammen

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David’s website 00:52
David on TWiV 408, Boston Quammens 2:08
Axel Erlandson’s trees reimagined – Gilroy Gardens 1:22:39

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Uncategorized

TWiEVO 36: All’s not quiet on the telomeric front

October 24, 2018
Tagged as: chromosome, evolution, genome conflict, integrates, jockey, non-LTR retrotransposon, recombination, telomerase, telomere, transposable element

Mia joins Nels and Vincent to unravel their finding that the transposons that maintain the ends of chromosomes in Drosophila have evolved in conflict with the genome.

Hosts: Nels Elde and Vincent Racaniello

Guest: Mia Levine

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Levine Lab at U Penn 1:34
Telomere elongation without telomerase (bioRxiv) 9:57
Letters read on TWiEVO 36 57:05

Science Picks 1:06:43

Nels – Cinema Science podcast
Vincent – Mastodon bones unearthed (Instagram, Grand Rapids News)

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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.

Hosts: Nels Elde and Vincent Racaniello

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Jumping sex genes in strawberries (PLoS Biol) 5:17, 36:29
Red Queen by Matt Ridley 17:11
Image credit
Letters read on TWiEVO 35 1:02:03

Science Picks 1:19:52

Nels – New snailfish and Cloned crayfish
Vincent – A PhD Lab Coat Ceremony

Listener Picks

Steve – Diversity in simple blobs
Justin – On Growth and Form by D’Arcy Wentworth Thompson (free)

Music on TWiEVO is performed by Trampled by Turtles

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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.

Hosts: Nels Elde and Vincent Racaniello

&lt;span data-mce-type=”bookmark” style=”display: inline-block; width: 0px; overflow: hidden; line-height: 0;” class=”mce_SELRES_start”&gt;&lt;/span&gt;&amp;lt;span data-mce-type=”bookmark” style=”display: inline-block; width: 0px; overflow: hidden; line-height: 0;” class=”mce_SELRES_start”&amp;gt;&amp;lt;/span&amp;gt;&amp;amp;lt;span data-mce-type=”bookmark” style=”display: inline-block; width: 0px; overflow: hidden; line-height: 0;” class=”mce_SELRES_start”&amp;amp;gt;&amp;amp;lt;/span&amp;amp;gt;&amp;amp;lt;span data-mce-type=”bookmark” style=”display: inline-block; width: 0px; overflow: hidden; line-height: 0;” class=”mce_SELRES_start”&amp;amp;gt;&amp;amp;lt;/span&amp;amp;gt;&amp;amp;amp;amp;lt;span data-mce-type=”bookmark” style=”display: inline-block; width: 0px; overflow: hidden; line-height: 0;” class=”mce_SELRES_start”&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/span&amp;amp;amp;amp;gt;&amp;amp;amp;amp;amp;lt;span data-mce-type=”bookmark” style=”display: inline-block; width: 0px; overflow: hidden; line-height: 0;” class=”mce_SELRES_start”&amp;amp;amp;amp;amp;gt;&amp;amp;amp;amp;amp;lt;/span&amp;amp;amp;amp;amp;gt;

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Ancient losses of paraoxonase I (Science) 5:52, 15:49
Big Yellow Taxi (YouTube) 1:00:04
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Letters read on TWiEVO 34 1:03:47

Hey farmer farmer put away the chlor-pyri-fus
I don’t care about spots on my apples
Leave me the manatee and walruses

Science Picks 1:13:56

Nels – New dinosaur discovered in Utah
Vincent – The Song of the Dodo by David Quammen

Music on TWiEVO is performed by Trampled by Turtles

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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 at ASV 2018

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

Hosts: Nels Elde and Vincent Racaniello

&lt;span data-mce-type=”bookmark” style=”display: inline-block; width: 0px; overflow: hidden; line-height: 0;” class=”mce_SELRES_start”&gt;&lt;/span&gt;&amp;lt;span data-mce-type=”bookmark” style=”display: inline-block; width: 0px; overflow: hidden; line-height: 0;” class=”mce_SELRES_start”&amp;gt;&amp;lt;/span&amp;gt;&amp;amp;lt;span data-mce-type=”bookmark” style=”display: inline-block; width: 0px; overflow: hidden; line-height: 0;” class=”mce_SELRES_start”&amp;amp;gt;&amp;amp;lt;/span&amp;amp;gt;&amp;amp;lt;span data-mce-type=”bookmark” style=”display: inline-block; width: 0px; overflow: hidden; line-height: 0;” class=”mce_SELRES_start”&amp;amp;gt;&amp;amp;lt;/span&amp;amp;gt;&amp;amp;amp;amp;lt;span data-mce-type=”bookmark” style=”display: inline-block; width: 0px; overflow: hidden; line-height: 0;” class=”mce_SELRES_start”&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/span&amp;amp;amp;amp;gt;&amp;amp;amp;amp;amp;lt;span data-mce-type=”bookmark” style=”display: inline-block; width: 0px; overflow: hidden; line-height: 0;” class=”mce_SELRES_start”&amp;amp;amp;amp;amp;gt;&amp;amp;amp;amp;amp;lt;/span&amp;amp;amp;amp;amp;gt;

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Virus in fungus in fly (bioRxiv) 9:13, 28:40
On a leaf, no one can hear you scream (TWiV 443) 26:18
Nels gives Benzer Lecture (YouTube) 27:27
Domestication of fungal fly pathogen (bioRxiv) 28:52
Sequencing E. muscae genome (10X genomics) 34:02, 37:20
Eisen’s twitter stream on new iflavirus (Twitter) 38:09

Science Picks 1:09:26

Nels – Mindsuckers; getting photos; Anand Varma photos
Vincent – Happy Birthday Gregor Mendel

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« Previous 1 … 6 7 8 9 10 … 12 Next »

TWiEVO 42: Who’s who in your genome

Science Picks 1:12:32

TWiEVO 41: Where do baby genes come from?

Science Picks 1:15:38

TWiEVO 40: Eau de bee

Science Picks 59:59

TWiEVO 39: In a Legionella of their own

Science Picks 1:06:46

TWiEVO 38: Evolving to evolve

Science Picks 1:11:48

TWiEVO 37: A tangled tree on the Quammens

TWiEVO 36: All’s not quiet on the telomeric front

Science Picks 1:06:43

TWiEVO 35: Strawberry sex chromosomes forever

Science Picks 1:19:52

Listener Picks

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

Science Picks 1:13:56

TWiEVO 33: Fly by virus

Science Picks 1:09:26

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