Nicolas GaltierDear Mastodon friends, it's my pleasure to share this new manuscript on distinguishing gene flow from incomplete lineage sorting (ILS)
https://www.biorxiv.org/content/10.1101/2023.07.06.547897v1
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Julien JOSEPH@GaltierNicolas Hi! Have you seen this article by colleagues from the LBBE ? @damdevienne
https://journals.plos.org/plosbiology/article?id=10.1371/journal.pbio.3001776
"Introgression from a ghost lineage (X) from outside the ingroup of interest produces a phylogenetic tree with increased branch lengths compared to the species tree (scenario C),"
It seems that GF does not always leads to shorter branches...
But may be there is a way to control for that ?
@Julien_JOSEPH @damdevienne
yes!
Gene flow from ghost lineage is a potential confounder, which I could have discussed indeed.
This migth generate tall discordant gene trees with significant imbalance between the two discordant topologies; I haven't witnessed this pattern so far in my analysis but clearly something to keep in mind!
yes!
Gene flow from ghost lineage is a potential confounder, which I could have discussed indeed.
This migth generate tall discordant gene trees with significant imbalance between the two discordant topologies; I haven't witnessed this pattern so far in my analysis but clearly something to keep in mind!