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Does this help to explain the genetic diversity of the tropical latitudes; is the genetic mutation rate higher in the presence of gamma radiation? So many of o
by westurner 2y ago
Does this help to explain the genetic diversity of the tropical latitudes; is the genetic mutation rate higher in the presence of gamma radiation?
So many of our plants and flowers (here in North America) originate from rainforests and tropical latitudes, but survive at current temps for northern latitudes.
- idunnoman1222 2y agoNo, insignificant
- idunnoman1222 2y agoNo, insignificant Is diverse because there is more biomass
- westurner 2y ago/? is the genetic mutation rate higher in the presence of gamma radiation: https://www.google.com/search?q=is%20the%20genetic%20mutation%20rate%20higher%20in%20the%20presence%20of%20gamma%20radiation https://www.google.com/search?q=is%20the%20genetic%20mutatio... : - "Frequency and Spectrum of Mutations Induced by Gamma Rays Revealed by Phenotype Screening and Whole-Genome Re-Sequencing in Arabidopsis thaliana" (2022) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8775868/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8775868/ : > Gamma rays have been widely used as a physical agent for mutation creation in plants, and their mutagenic effect has attracted extensive attention. However, few studies are available on the comprehensive mutation profile at both the large-scale phenotype mutation screening and whole-genome mutation scanning. - "Bedrock radioactivity influences the rate and spectrum of mutation" (2020) https://elifesciences.org/articles/56830 https://elifesciences.org/articles/56830 - "Comparison of mutation spectra induced by gamma-rays and carbon ion beams" (2024) https://academic.oup.com/jrr/article/65/4/491/7701037 https://academic.oup.com/jrr/article/65/4/491/7701037 : > These results suggest that carbon ion beams produce complex DNA damage, and gamma-rays are prone to single oxidative base damage, such as 8-oxoguanine. Carbon ion beams can also introduce oxidative base damage, and the damage species is 5-hydroxycytosine. This was consistent with our previous results of DNA damage caused by heavy ion beams. We confirmed the causal DNA damage by mass spectrometry for these mutations.