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Inbreeding in Medical News

Remarks Linking Inbreeding And Diabetes Sparks of Controversy

After a research showed that more than 345 youngsters suffered from type1diabetes in Norfolk, more than double the160 predicted cases for the county, Dr Ian Gibson,// a former chairman of the Commons Science and Technology Committee, said in an interview that inbreeding might be the reason behind i...

Beetles drive groundbreaking conservation project

...he University of East Anglia (UEA) this summer. inbreeding is a potentially important problem in declining sp...xploitation, the gene pool is reduced which forces inbreeding between relatives, and therefore losses in genetic...roblems usually associated with reproduction. This inbreeding depression then adds to the habitat loss or exploi...

Inbreeding May Have Doomed Spain's Habsburg Dynasty

...tives. Ultimately, the genetic havoc caused by inbreeding appears to have doomed the Spanish Habsburgs to ob...la in Spain. The study suggests that successive inbreeding contributed to the genetic diseases that turned th... back 16 generations. They aimed to figure out how inbreeding -- cousins marrying cousins, for example, and uncl...

Cold Spring Harbor Laboratory researchers race against time to save Tasmanian devils

...ome extinct. The process by which the disease spreads among the devils has only been seen once before and represents a new field in cancer biology. inbreeding in wild populations may prevent the devils immune system from recognizing the cancer as foreign, allowing the cancer to be transmitted. To provide an ...

Females avoid incest by causing male relatives to leave home

...life Research (IZW) in Berlin, Germany, have found that female hyenas avoid inbreeding with their male relatives by giving them little choice but to leave their birth group. Animals generally avoid inbreeding because it is genetically hazardous. They can either do this by moving away...

Breeding success by delving into the honey bee sex gene

...es raised for honey or for pollinating crops, the sex-determination system can cause problems. Beekeepers inbreed bees to select desirable traits, but inbreeding raises the odds of producing fertilized eggs with two copies of the same csd allele. If too many sterile males result, the colony may die out. "I...

DNA Of Dog Could Hold The Key To Combat Human Diseases.

...rs in dogs, they cold offer a hope for a cure for diseases in humans. It was also explained by the researchers that dogs were chosen for the study, as inbreeding among the species would have contained the genetic variability. Dr Steven Holloway of the University of Melbourne's faculty of veterinary scienc...
Inbreeding in Biological News

Bone deformities linked to inbreeding in Isle Royale wolves

The wolves on Isle Royale are suffering from genetically deformed bones. Scientists from Michigan Technological University blame the extreme inbreeding of the small, isolated wolf population at the island National Park in northern Lake Superior. Researchers have collected the first scientific ...

Researchers take first look at the genetic dynamics of inbreeding depression

Researchers have taken a first look at the broad genetic changes that accompany reproductive declines in inbred populations. Although scientists have known for more than a century that small populations of closely related plants or animals are likely to suffer from low reproductive success, the...

Study rules out inbreeding as cause of amphibian deformities

WEST LAFAYETTE, Ind. Although research has linked inbreeding with elevated rates of deformity in a wide variety of animals, a new study finds it plays no part in the high incidence of malformation among salamanders. Purdue University researchers recently examined 2,000 adult and juvenile salam...

Wolves are suffering less from inbreeding than expected

Increasing levels of inbreeding is a threat against the viabi lity of the Scandinavian wolf population. A study just coming out in the new journal PLoS ONE now demonstrates that inbreeding is not affecting the wolves as badly as expected. The results show that it is the most genetically variable wo...

Disease threat may change how frogs mate

...ds to inbreeding, which causes an increase in relatedness in the population. However, Dr Teacher has uncovered startling results; finding that despite inbreeding there has been no subsequent increase in relatedness in these populations. Dr Teacher's conclusion is that this lack of relatedness has been caused...

Another reason to drink a nice cup of shade-grown joe

...e maintenance of gene flow is an important conservation measure since fragmented populations are effectively smaller and therefore more susceptible to inbreeding and further declines or extinction. Coffee is grown across millions of hectares of land within the world's richest centers of biodiversity, the res...

Two from one: Pitt research maps out evolution of genders from hermaphroditic ancestors

...le-sex offspring. (Sterile plants also can result, but plants with genes that favor the production of fertile offspring will be more successful.) When inbreeding depression in hermaphrodites is also considered, Ashman said, a gradual decline in the number of hermaphroditic plants is to be expected. Consequently...

World's rarest big cat gets a check-up

... is evaluating the health and potential effects of inbreeding for this tiny population, which experts believe co...as it will help us to determine the risks posed by inbreeding and what we can do to mitigate them." One of the...t with a high rate of turnover of individuals. If inbreeding or disease can be kept in check, WCS and its partn...

Rare corals breed their way out of trouble

... common species because they have very small effective population sizes, which implies that they may have limited genetic diversity and high levels of inbreeding and therefore be unable to adapt to changing conditions," Zoe says. "When we studied some particularly rare species of Acropora (staghorn corals), ...

Let the cat keep chasing the mouse

...ulations in Hessen and in the Harz Mountains are also isolated from the population in Rhineland-Palatinate, which prevents genetic exchange and causes inbreeding depression, threatening numbers of wildcats in the long run. Plans for a nationwide net of migration corridors On behalf of the League for the...
Inbreeding in Biological Definition

Extinction

... of a species. Population bottlenecks can dramatically reduce genetic diversity by severly limiting the number of reproducing individuals and make inbreeding more frequent. The founder effect can cause rapid, individual-based speciation and is the most dramatic example of a population bottleneck. H...

Gene pool

... genetic diversity , which is associated with robust populations that can survive bouts of intense selection . Meanwhile, low genetic diversity (see inbreeding and population bottlenecks ) can cause reduced fitness and an increased chance of extinction . When many alleles exist for a given gene or lo...

Hardy-Weinberg principle

...depending which assumption is not met, such deviations may or may not be statistically detectable. Deviations can be caused by the Wahlund effect , inbreeding , assortative mating , selection , or genetic drift . Assortative mating will only change the genotype frequencies of those genes that are desired...

Sewall Wright

...lutionary synthesis . In a long career, he invented much of the theory of genetic drift (also known as the "Sewall Wright effect") and developed the inbreeding coefficient and many of its applications. Wright was the developer of adaptive surfaces ( fitness landscapes ), and he emphasized the importance of ...
Inbreeding in Biological Dictionary

Inbreeding

Inbreeding is breeding between close relatives, whether plant or animal. If practiced repeatedly, it can lead to exposure of recessive, deleterious traits. This generally leads to a decreased fitness of a population, which is... In genetic terminology, inbreeding is the breeding of two ...

Self-pollination

... ... pollination . Self ... Plants that self pollinate are said to be inbreeding whereas ... Nevertheless, self - pollination also occurs among an ......opens is always self - pollination . ... Many flowering plants prevent inbreeding and increase genetic diversity by a process called self -incompatibilit...

Selfing

...framing theories of the self and selfing process, we need ... ... and inbreeding effects on pollinator behavior and selfing rates in ... they reduced flowe...e a ... no self-incompatibility system, selfing is possible when ... inbreeding depression and selfing rate were investigated in the self-compatible ... ...

Self-incompatibility

...d of the Day, and word games. Self - Incompatibility : How Plants Avoid inbreeding ... There are two quite different types of self - incompatibility . ... Sp...patibility in Interspecific Hybrids. ... Many flowering plants prevent inbreeding and increase genetic diversity by a process called self - incompatibili...

Pure-breeding

...ged in raising various pig breeds through pure breeding method. ... The fact that pure breeding over long periods was impossible without inbreeding has its ... Line breeding results in the reduction of the number of alleles ... Goldenseed Official UK distributor the flying dutchmen canna...

Outbreeding

...of encyclopedia entries, essays, summaries, ... of inbreeding and Outbreeding : Theoretical and Empirical ... ...cing a hybrid of superior quality ... made from inbreeding or outbreeding ? ... Britannica online encycl...ng (biology), Two other important exceptions are inbreeding (mating with relatives) and enforced outbreeding...

Mating

...pecies, including Ring-tailed Lemurs, bees, ... Information about mating in the free online English dictionary and encyclopedia. assortative ... inbreeding - the act of mating closely related individuals ... An extraterrestrial anthropologist (David Hyde Pierce) examines the dating and mating ritu...

Inbreeding depression

... inbreeding depression is reduced fitness in a given popul...eding between closely related individuals, called inbreeding , results in more recessive deleterious traits... inbreeding is breeding between close relatives, whether pla...

Inbreeding coefficient

... inbreeding is breeding between close relatives, whether pla...Complete Internet Pet Connection For Dogs ... The inbreeding coefficient is a function of the number and loc...of the ... Wright developed what is called the inbreeding coefficient . ... The ...

Genetic variance

... computed by usual models is quite low, but only additive ... PREVENTING inbreeding DEPRESSION AND LOSS OF GENETIC VARIANCE IN HATCHERY POPULATIONS ... the... yield, was lost during advanced ... Expected Genetic Variance . A zero inbreeding coefficient was assumed for the ... In evolutionary genetics, additive ...
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