ArticleJournal of molecular evolution2021
Costly circRNAs, Effective Population Size, and the Origins of Molecular Complexity.
Article in Journal of molecular evolution, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Abstract
While much excitement has attended the discovery and study of circular RNAs, a new study in Cell Reports suggests that most mammalian circRNAs are not only functionless, but in fact costly. Comparison across three species is also consistent with the influential but rarely tested Drift-Barrier Hypothesis of molecular complexity. According to this hypothesis, nonessential genomic elements are slightly deleterious elements that fix by genetic drift and, thus, are generally more abundant in species with small effective population sizes. I discuss the implications of these new results for the Drift-Barrier hypothesis. In particular, I note the distinction between two classes of genomic elements, based on whether they are created by 'standard' small-scale mutations (basepair substitutions, indels, etc.) or larger, more idiosyncratic mutations (segmental duplications, transposable element propagation, etc.) I suggest that the Drift-Barrier Hypothesis is likely to apply to the former class, but perhaps not the latter class.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.