Is 'between-group heritability' actually real?I've been watching archived alt right videos, and one intriguing concept I've seen them talk about is something called between-group heritability. The traditional understanding of heritability is that it is a statistic for one population, but some say we can calculate heritability between two different populations. For example, if the soil quality in a population of plants varied widely then the heritability of height would be low. But if another population had the same variance in soil, then the between-group heritability of height would be 100%. A quick search on google scholar yields sparse results for 'between-group heritability'. Is it something that exists? Can a difference in a trait between separate groups be quantified and called heritability, or is it just a meme?
>>17016716I think you don't understand the thing you are watching enough so what you wrote is mostly nonsense mix up of different concepts and things. There's no such thing as "between-group heritability". Traits do not get inherited between groups because traits are passed from parents to children as in passed down within a group, they do not magically transfer to other groups.
>>17016751So you are saying horizontal gene transfer can't exist?
>>17016775Horizontal gene transfer has nothing to do with OP or what I wrote. If you are OP see my previous post on why your latest post is nonsense.
>>17016789So horizontal gene transfer does exist? But you can prove this cant lead to any shared traits? Sauce?
>>17016796In the biz we call this "raping English". You post words but none of them mean what you think they mean.
>>17016798In duh kinky business you are in the only thing you do is make shit up.
>For example, if the soil quality in a population of plants varied widely then the heritability of height would be low. But if another population had the same variance in soil, then the between-group heritability of height would be 100%
>>17016716Heritability is defined as the "proportion" or "amount" of diversity of a phenotypic trait in the offspring generation that can be attributed to the diversity in the parental generation genomes.If the heritability is close to 100% then the trait is entirely determined by the parent genes (blood group, eye color), if it is close to zero then the phenotype in children is independent of the parent genes (individual wheight depends on genetic, but also depends a lot on alimentation).With this clarified:-If one population of plants are seeded in soil with high-variance in quality, the next generation height will be decorrelated from the genetic background since the soil is the main factor -> Low within group heritability.-If we plant another population in soils of variyibg quality, and now compare with the other group: Both population are in subject to the same environment. So if there is a difference in average height, it could be attributed to a difference in genetic background between the two groups -> High between-group inheritability.
>>17016818Are there other kinds of heritability?
>>17016824Cannot say for sure.I briefly had a lesson on heritability at the university, but never dug deeper on the subject (This field of biology does not interests me too much).
>>17016805It means that the former, soil is the more relevant factor. For the latter with the much more reduce variance in soil it'd their height genes that is of statically significance. Remember that statistical significance doesn't mean "this is the exact reason and cause for the difference". It just means that the difference between the plants that can be detected within a certain degree of confidence is (possibly) from that. One thing to note is that it often means that the plants could really be close to each other in height the significant difference between a 23.4 meter tall plant and a 23.5 plant is from their inherited genes.One thing to note is that in humans is that family history, wealth and upbringing is something that is inheritable which makes it complex.
>>17016798Inconceivable!
