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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.
Interbreeding between the species can cause a 'swamping' of the rarer species' gene pool, creating hybrids that supplant the native stock. This is a direct result of evolutionary forces such as natural selection, as well as genetic drift, which lead to the increasing prevalence of advantageous traits and homogenization.
Humans do not seek to completely minimize inbreeding, but rather to maintain an optimal amount of inbreeding vs. outbreeding. Close inbreeding reduces fitness through inbreeding depression, but some inbreeding brings benefits. [19] [20] Indeed, inbreeding "increases the speed of selection of beneficial recessive and co-dominant alleles, e.g ...
A mule is a sterile hybrid of a male donkey and a female horse.Mules are smaller than horses but stronger than donkeys, making them useful as pack animals.. In biology, a hybrid is the offspring resulting from combining the qualities of two organisms of different varieties, subspecies, species or genera through sexual reproduction.
Lineages are typically considered inbred after at least 20 generations of inbreeding (e.g. by self-fertilization or sib mating), at which point nearly all loci across the genome are homozygous and all individuals can therefore effectively be treated as clones (despite the fact that individuals are still produced by sexual reproduction). inbreeding
species – a group of closely related organisms which, if sexual, are capable of interbreeding and producing fertile offspring; population – the set of individuals of a particular species in a given area; gene pool – the collective genetic information contained within a population of sexually reproducing organisms; ignores linkage ...
The wave of interbreeding took place roughly 43,500 to 50,500 years ago, according to the findings. Then, over the next 100 generations, most Neanderthal DNA got weeded out — but not all.
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.