Gourt > Recreation > Pets > Dogs > Genetics > Breeding and Selection
In the context of evolution, certain traits or alleles of a species may be subject to selection. Under selection, individuals with advantageous or "adaptive" traits tend to be more successful than their peers reproductively--meaning they contribute more offspring to the succeeding generation than others do. When these traits have a genetic basis, selection can increase the prevalence of those traits, because offspring will inherit those traits from their parents. When selection is intense and persistent, adaptive traits become universal to the population or species, which may then be said to have evolved.
Overview
Whether or not selection takes place depends on the conditions in which the individuals of a species find themselves. Adults, juveniles, embryos, and even eggs and sperm may undergo selection. Factors fostering selection include limits on resources (nourishment, habitat space, mates) and the existence of threats (predators, disease, adverse weather). Biologists often refer to such factors as selective pressures.
More on [ Selection ]
@WillMyDogHateMe: @dogspelledfwd @gone_to_dogs Hunter/gatherers "adopting" and then breeding wolf puppies. Selection by man.
dogspelledfwd (dogspelledfwd) Mon, 21 Sep 2009 21:59:34 -0000
@WillMyDogHateMe: @dogspelledfwd @gone_to_dogs Hunter/gatherers "adopting" and then breeding wolf puppies. Selection by man.
Canine Diversity Project - Series of articles concerning the genetics of selection, inbreeding, inheritance of congenital defects.
Principles of Genetics - Two articles from the Continental Kennel Club introducing principles of genetics and crossbreeding, with an emphasis on dogs.
Purebred Dog Breeds into the Twenty-First Century - Article that reviews the genetic origin of the breeds and the consequences of selection over time.
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