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Inbreeding is also used to reveal deleterious recessive alleles, which can then be eliminated through assortative breeding or through culling. In plant breeding, inbred lines are used as stocks for the creation of hybrid lines to make use of the effects of heterosis. Inbreeding in plants also occurs naturally in the form of self-pollination.
Inbreeding avoidance, or the inbreeding avoidance hypothesis, is a concept in evolutionary biology that refers to the prevention of the harmful effects of inbreeding. Animals only rarely exhibit inbreeding avoidance. [ 1 ]
In the thoroughbred industry, inbreeding is used to focus specific genes by using superior, prepotent individuals, usually within the fourth and sixth generations. Inbred animals are likely conduits for certain specific characteristics coming from their inbred ancestor. Too much inbreeding is not desirable and rarely produces the superior runner.
Inbreeding depression in Delphinium nelsonii. A. Overall fitness of progeny cohorts and the B. progeny lifespan were all lower when progeny were the result of crosses with pollen taken close to a receptor plant. [1] Inbreeding depression is the reduced biological fitness that has the potential to result from inbreeding, the breeding of related ...
Genetic purging is the increased pressure of natural selection against deleterious alleles prompted by inbreeding. [1]Purging occurs because deleterious alleles tend to be recessive, which means that they only express all their harmful effects when they are present in the two copies of the individual (i.e., in homozygosis).
With science you can build a complex explanation for an observation as high as a house of cards or you could invoke Occam’s razor and shave it down to the essential facts. However, the simplest explanation, rather than the most convoluted, will usually suffice. So, if you’d like to get the facts straight, read Deceived
Though there are many traits about zebrafish that are worthwhile to study including their regeneration, there are relatively few inbred strains of zebrafish possibly because they experience greater effects from inbreeding depression than mice or Medaka fish, but it is unclear if the effects of inbreeding can be overcome so an isogenic strain ...
When it comes to quick, convenient lunch options, deli meat often tops the list. But with growing health concerns around processed meat — including a recent Boar's Head recall of 7 million ...