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My first "reviewed preprint" on @eLife !

A Timeline of Bacterial and Archaeal Diversification in the Ocean

https://elifesciences.org/reviewed-preprints/88268

Lots of hard work from former PhD student in my lab Carolina Martinez. Part of a collaboration with @pseudacris

We are enjoying the new process so far and working on revisions to address some of the concerns raised by reviewers.

#ocean #marine #microbiology #evolution #ecology

in reply to Small Things Considered

the check "bookmarked ✔️ " was meant completely seriously. Your study is way above my horizon, but gives me a valuable clue for a project I am pursuing for a long time: conservation of synteny of the large cluster of ribosomal protein genes (with SecY in the middle) and flanking genes. the cluster seems to be largely conserved since the split in Bacteria and Archaea.

here is a readable version > https://www.dropbox.com/s/u7hhubv7yk6gjl5/secY_context_02.2.pdf

in reply to Small Things Considered

@STCmicrobeblog very interesting! I believe I see Thermatoga there -Synergistota too? According to some of our earlier work they are the most basal branching bacteria, so perhaps they can provide insight into the ancestral state

https://academic.oup.com/mbe/article/38/12/5514/6358142

in reply to Frank Aylward

I haven't yet included any Synergistota except for Cloacibacillus porcorum CL-84 in my matrix but it should be worthwhile to have more (> to-do list✔️ ) .
my focus at the moment is on the close proximity of the α-operon and the rpsI/rplM gene pair, which is also seen in some archaea. but of course I can't nail down the bacteria/archaea split by doing this.
in reply to Small Things Considered

@STCmicrobeblog very interesting. It's also been hard to place DPANN Archaea of course. They often come out as basal branching but I think that's just an artifact of long branch attraction and not enough genomes. Maybe comparing the gene order in various Archaea could shed light on this too. I hadn't thought of comparing synteny in these highly conserved gene clusters but it makes sense!

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