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Jas Rees Profile
Jas Rees

@rees_jas

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Postdoc in the Tishkoff Lab @UPenn | PhD @UCLchildhealth & @UGI_at_UCL | local adaptation & human evolution

Philadelphia, PA
Joined November 2017
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@rees_jas
Jas Rees
2 months
1/ So pleased to share our paper on genetic adaptation to micronutrients in humans! Our biggest conclusion? Trace minerals in the diet have shaped human evolution far more than previously appreciated 🧬🌍👇 https://t.co/80oK6hW99J
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cell.com
In this study, Rees et al. evaluate the role of dietary micronutrients in driving local genetic adaptation and population differentiation in humans. The authors find evidence that micronutrient-ass...
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@rees_jas
Jas Rees
2 months
12/ TLDR: we identify widespread signatures of positive selection associated with 13 different micronutrients at different timepoints in human evolutionary history, suggesting that micronutrients have been a powerful selective force in modern humans 🧬🌎🍎
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@rees_jas
Jas Rees
2 months
11/ Side bar: this work was done as our chapter of my PhD, under two incredible supervisors (@AidaAndres & @scastesparraka), and I hope some of the joy of my time at @UCLchildhealth & @UGI_at_UCL translated into the paper (but not too much, it is a scientific article after all).
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@rees_jas
Jas Rees
2 months
10/ If true, this has the potential to drive or exacerbate micronutrient-linked health disparities across populations - especially when over-farming and climate change continues to decrease soil quality. It is hard to ignore potential public/global health connotations🌎
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@rees_jas
Jas Rees
2 months
9/ Why is this important? We suggest dietary micronutrients have shaped the recent evolution of humans and likely contributed to population differentiation in diet-related genes - possibly resulting in average differences in their micronutrient uptake, metabolism or regulation.
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@rees_jas
Jas Rees
2 months
8/ In some cases, signatures of positive selection are identified in areas of the world with soil of known deficiencies or toxicities of micronutrients - potentially reflecting genetic adaptation to soil-driven micronutrient levels in the diet. Read our paper to see where 🤓
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@rees_jas
Jas Rees
2 months
7/ Rather than isolated cases, we see evidence for monogenic and/or oligogenic adaptation for all micronutrients , across diverse geographic and temporal scales ⚠️
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@rees_jas
Jas Rees
2 months
6/ We used methods informed by extensive simulations to identify signatures of positive selection in ~300 genes associated with 13 essential trace minerals in 40 diverse human populations, considering monogenic, oligogenic and polygenic selection 🧬
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@rees_jas
Jas Rees
2 months
5/ We wanted to ask: have all micronutrients acted as selective pressures? Or only a few? And in which populations and timepoints? Is this likely to be driven by differing micronutrient levels in local soils? 🌎
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@rees_jas
Jas Rees
2 months
4/ But soils can be extremely variable in their micronutrient content (even amongst really close-by environments!) - and have previously been suggested to drive some isolated examples of local adaptation to dietary micronutrients in human populations 🧬
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@rees_jas
Jas Rees
2 months
3/ For much of human evolution, the amount of micronutrients in our diet have depended on the underlying soil content, since micronutrients are taken up by local plants and animals that then make up the human diet 🐔🍎🌽
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@rees_jas
Jas Rees
2 months
2/ Micronutrients - including trace minerals and vitamins - are essential components in the human diet, needed in very small and precise quantities. Deficiencies can be super harmful, leading to stunted growth and increased risk of infectious, metabolic or respiratory diseases.🤒
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@mork_animates
Mark Spokes
1 year
One of my shots made it into the trailer!! Here's a sneak peak🐕- A lot of great work went into this film. Can't wait to see it on the big screen🐶 #Dogman
@Dreamworks
DreamWorks Animation
1 year
A NEW SUPA HERO IS GONNA BE UNLEASHED. 🦴💥 WATCH THE #DOGMANMOVIE TRAILER NOW, FEATURING PETE DAVIDSON, ISLA FISHER, LIL REL HOWERY, & RICKY GERVAIS
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@mork_animates
Mark Spokes
1 year
Here's my submission for this month's Agora Anin-challenge. I made this in my spare time over 3-4 weeks. All of the 2D effects (expect for the explosion) were animated using simple Maya geo. I had an absolute blast making this- Enjoy! #animation #Deadpool
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@rees_jas
Jas Rees
1 year
can the UK submit the DNC as our 2025 eurovision entry
@enny43
enny
1 year
this really how Georgia pulled up to the DNC roll call
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@leo_speidel
Leo Speidel
1 year
Very excited to be starting my group this autumn at https://t.co/aBIREK5Ck3 @RIKEN_JP and we’re hiring! https://t.co/KMHG7Tpe7f Many more fellowship opportunities as well, please get in touch if interested and see you in Tokyo!
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@10DowningStreet
UK Prime Minister
1 year
Rt Hon Ed Miliband MP @Ed_Miliband as Secretary of State for Energy Security and Net Zero @energygovuk.
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@mork_animates
Mark Spokes
1 year
This started as just a silly anim test, heavily inspired by Genndy Tartakovsky's Primal. I had so much fun that I ended up creating a fully-fleshed performance shot. Please enjoy! 🦍 #animation #ProRigs
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@smlatorreo
Sergio Latorre
2 years
Very happy to have received this very important award from @uniofeastanglia for our team effort on genomic surveillance of #wheat #blast @hernanaburbano @UCLLifeSciences @CloeFor
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@hernanaburbano
Hernán A. Burbano
2 years
Our new paper on Herbarium Genomics is part of the special issue on Ancient DNA #aDNA in @ScienceMagazine.
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