A loss of vigor amongst offspring occurring when closely related individuals mate, resulting from the expression of numbers of deleterious genes in a homozygous state and from a generally low level of heterozygosity.
loss in vigor associated with inbreeding. Occurs most frequently in cross-pollinated or clonally propagated species. Caused by accumulated effects of 1) deleterious recessive alleles combined into a homozygous trait or 2) loss of the vigor associated with a positive interaction of two different alleles at a single locus.
Reduction, in inbred individuals, of the mean value of a character (usually one correlated with fitness).
This occurs when deleterious, recessive alleles become homozygous in the progeny of matings between relatives, causing reduced fitness among these individuals.
Reduction in offspring fitness resulting from mating between blood relatives.
A decline in desirable characteristics such as fertility, general vigor, or yield produced by repeatedly crossing related organisms (inbreeding). Inbreeding depression can be seen in some specimens of purebred pets.
The successive loss of population vigor with each generation of selfing of an F1 hybrid. It is often seen in outcrossing, vegetatively-propagated, and/or heterozygous autotetraploid plants.
a reduction in overall health and vigor of individuals in a population as a result of breeding with close relatives over multiple generations
The loss of fitness that usually results from inbreeding. This loss of fitness is the result of increased homozygosity, which in turn exposes recessive deleterious traits.
the decrease in growth, survival and fertility often observed following matings among relatives or self-fertilization (plants). The same outcomes may be caused by matings among genetically very distant conspecific organisms, resulting in outbreeding depression.
decreased fertility of a hatchery stock resulting from inbreeding.
A reduction in fitness or vigor as a result of fixation of deleterious, recessive alleles from consistent inbreeding in a normally outbreeding population.
In a small population, an accumulation of harmful genetic traits (through random mutations and natural selection) that lowers viability and reproductive success of enough individuals to affect the whole population.
the decrease in health or fertility because of inbreeding.
The reverse of hybrid vigor. A decrease in the performance of inbreds, most noticeably in traits such as fertility and survivability.
A loss of vigor because of inbreeding. Inbreeding is the result of self-pollination or pollination between two close relatives.
Reduction, as a consequence of inbreeding, of the mean value of a character, often used to refer to overall fitness of an individual.
Inbreeding depression is reduced fitness in a given population as a result of breeding of related individuals. Breeding between closely related individuals results in more recessive deleterious traits manifesting themselves. The more closely related the breeding pair is, the more homozygous deleterious genes the offspring may have, resulting in very unfit individuals.
