More details here:
http://www2.cnrs.fr/presse/communique/5635.htm?theme1=7
and here:
Giant pandoraviruses create their own genes:
https://natureecoevocommunity.nature.com/channels/521-behind-the-paper/posts/33656-giant-pandoraviruses-create-their-own-genes
The paper:
https://www.nature.com/articles/s41467-018-04698-4.epdf?author_access_token=cf8YWHbX4c0sNDSZOTxfnNRgN0jAjWel9jnR3ZoTv0Nu4QdRUwUpC7LY1FNWlvALhyUJmyQ8KfAqL6y4KKUH1Jrj2XI7XvVjsyfEqUp-X6gfak8AR7MaCSeFl-n-2pN0A4n4iTWAjaOkcKo3f1KmCw%3D%3D