Metabolism
What extreme physiologies does the painted turtle genome encode?
Open access · cc by · source: Europe PMC
The western painted turtle genome informs evolution of extreme anoxia and freeze tolerance in a slowly evolving vertebrate lineage.
How this study connects
Role on claims
Each row is a claim on a concept or method page where this paper supports, challenges, or qualifies the statement. Roles are hand-checked — not a model guess.
Whole-genome papers for extreme physiology use phylogeny as context rather than as the sole result. The painted-turtle genome is a resource for anoxia and freeze-survival in a tetrapod that can freeze nearly solid then thaw with little damage; the wild Medicago ruthenica assembly is compared with cultivated legumes to retain stress-tolerance traits diluted by domestication. Neither map every protective pathway experimentally or deliver a finished cultivar.
Evidence for the claim as stated.
Study at a glance
- Design
- Computational / modelling — Genome assembly and comparative analyses with supporting anoxia RNA-seq
- N
- N=1 · Chrysemys picta bellii reference genome; RNA-seq from n = 4 turtles per normoxic/anoxic group (16 libraries)
- Population
- Western painted turtle (Chrysemys picta bellii)
- Outcome
- Genome of a slowly evolving, anoxia- and freeze-tolerant tetrapod providing a model for extreme physiological adaptations
Structured fields used in claim comparison tables when every cited study has a complete layer.
Inspect source passages
What extreme physiologies does the painted turtle genome encode?
These passages occur verbatim in the stored paper text. They support the points listed below; they do not verify every statement in the explanation.
What extreme tolerances are highlighted?
anoxia-tolerant tetrapods known, and have the capacity in some species to freeze nearly solid, thaw, and survive with negligible tissue damage.
What does the genome provide?
The western painted turtle genome harbors a wealth of information on the genetic basis of these and other adaptations that characterize this unique vertebrate lineage.
Key findings
Genome resources for one of the most anoxia-tolerant tetrapods, capable of freezing nearly solid then thawing with little damage; molecular adaptations for winter survival.
Methodology
Sequenced/analyzed Chrysemys picta genome in the context of anoxia and freeze-survival physiology.
Limitations
Does not by itself map every protective pathway experimentally.
Related papers in this topic
Same topic cluster — not a recommendation engine.