Yannick's invited talks outdated

[roddypr]

Maybe add something more recent?

[yannickwurm]

Still todo - I fixed the visuals tho

[yannickwurm]

Add https://www.college-de-france.fr/site/en-tatiana-giraud/symposium-2022-06-10-14h00.htm

[yannickwurm]

(this wants a brief news item too, along with a text that is something like this).

Talk at College de France Supergene symposium

In Paris, Tatiana Giraud and her team including Jay Paul and Ricardo Rodriguez de la Vega organised a superb symposium on the evolution supergenes and sex chromosomes. The speaker lineup was superb, the food was great and the discussions were extremely stimulating. Yannick also had the honor of presenting our recent work on the fire ant social supergenes, highlighting that:

• the Sb [supergene responsible for multiple-queen colonies evolved in one species and repeatedly introgressed into other species](link to nat comm adaptive introgression paper). Thus the benefits of the new social form are sufficient to outweigh the genetic incompatibilities of carrying a large piece of chromosome from another species.
• the young Sb supergene for which recombination is suppressed is [accumulating deleterious mutations, including new transposable elements and expansions of existing repetitive elements]( link to degenerative expansion paper doi). These have led the Sb supergene to almost double in size compared to SB. This [degenerative expansion](link to degenerative expansion doi) is an early stage of supergene evolution, that likely occurs in many other systems but is difficult to detect in them.
• when comparing gene expression in the fire ant supergene system, most highly significant differences in gene expression are due to the genetic architecture of the system, and gene-by-gene dosage compensation for the degeneration of Sb, and only few patterns have the signature of socially antagonistic selection [link to ELIFE paper]

/* include video here */

[yuriigr]

Done.
Commit: 6fe0f4d