Unified neutral theory of biodiversity (Biodiversity 🦗)

The unified neutral theory of biodiversity and biogeography is a theory and the title of a monograph by ecologist Stephen P. Hubbell. It aims to explain the diversity and relative abundance of species in ecological communities. Like other neutral theories of ecolo...

https://en.wikipedia.org/wiki/Unified_neutral_theory_of_biodiversity

#UnifiedNeutralTheoryOfBiodiversity #Biodiversity #NeutralTheory #EcologicalTheories #TheoreticalEcology

Effective population size does not explain long-term variation in genome size and transposable element content in animals.

#Transposons #TEs #PopulationSize #GenomeSize #NeutralTheory #GeneticDrift

https://elifesciences.org/articles/100574

Background selection (Biodiversity 🦗)

Background selection describes the loss of genetic diversity at a locus due to negative selection against deleterious alleles with which it is in linkage disequilibrium. The name emphasizes the fact that the genetic background, or genomic environment, of a mutation has a significant impact on whether it will be preserved versus lost from a population. B...

https://en.wikipedia.org/wiki/Background_selection

#BackgroundSelection #Biodiversity #NeutralTheory

Background selection (Biodiversity 🦗)

Background selection describes the loss of genetic diversity at a locus due to negative selection against deleterious alleles with which it is in linkage disequilibrium. The name emphasizes the fact that the genetic background, or genomic environment, of a mutation has a significant impact on whether it will be preserved versus lost from a population. B...

https://en.wikipedia.org/wiki/Background_selection

#BackgroundSelection #Biodiversity #NeutralTheory

The neutralist-selectionist debate needs moderating, and this paper makes some good contributions, but ultimately disappoints. It defends #NeutralTheory as acknowledging #BackgroundSelection, but does not qualify that this is only a limited form of background selection - one with strong deleterious effects and Ud<1, such that background selection can be captured by a 1-locus model of random #GeneticDrift with lower #EffectivePopulationSize. https://onlinelibrary.wiley.com/doi/10.1111/brv.13010?af=R 1/n