News tagged with inbreeding
Evolution at warp speed: Hatcheries change salmon genetics after a single generation
The impact of hatcheries on salmon is so profound that in just one generation traits are selected that allow fish to survive and prosper in the hatchery environment, at the cost of their ability to thrive ...
Dec 19, 2011 |
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To prevent inbreeding, flowering plants have evolved multiple genes, research reveals
A research team led by Teh-hui Kao, professor of biochemistry and molecular biology at Penn State University, in collaboration with a team lead by Professor Seiji Takayama at the Nara Institute of Science ...
Nov 04, 2010 |
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Promiscuous queen bees maintain genetic diversity
By mating with nearly 100 males, queen bees on isolated islands avoid inbreeding and keep colonies healthy.
Apr 16, 2012 |
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Turtles' mating habits protect against effects of climate change
The mating habits of marine turtle may help to protect them against the effects of climate change, according to new research led by the University of Exeter. Published today in the journal Proceedings of th ...
Jan 24, 2012 |
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Wandering females give stags the slip
The fierce battles of rutting stags may be the most famous symbols of males competing over females in the animal kingdom. But it turns out the stags don't have things all their own way.
Oct 19, 2011 |
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Smells may help birds find their homes, avoid inbreeding
Birds may have a more highly developed sense of smell than researchers previously thought, contend scholars who have found that penguins may use smell to determine if they are related to a potential mate.
Sep 21, 2011 |
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Largest rice genetics study finds vast differences in rice
The largest publicly available genomewide association mapping study in rice to date has found that although the five subpopulations of Asian rice -- indica, aus, temperate japonica, aromatic and tropical ...
Sep 15, 2011 |
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Fantastic Mrs. Fox -- mother knows best for urban fox families
In urban fox families, mothers determine which cubs get to stay and which must leave while fathers have little say in the matter, new research by biologists at the University of Bristol has found.
Jul 20, 2011 |
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NY biologists map strategy to save spruce grouse
Genetic analysis at the state museum confirms what biologists squishing through Adirondack bogs already knew: New York's population of the spruce grouse, a chicken-like bird of the boreal forest, is nearing extinction.
Jul 04, 2011 |
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Believing in the pygmy bunny
Like the Easter Bunny, the Columbia Basin pygmy rabbit of Washington state may soon exist only in our imaginations. None have been seen in the wild since 2004. But a new breeding program is aiming to rebuild ...
Apr 20, 2011 |
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US sees massive drop in bumble bees: study (Update)
Weakened by inbreeding and disease, bumble bees have died off at an astonishing rate over the past 20 years, with some US populations diving more than 90 percent, according to a new study.
Jan 03, 2011 |
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Gatekeeper for tomato pollination identified
Tomato plants use similar biochemical mechanisms to reject pollen from their own flowers as well as pollen from foreign but related plant species, thus guarding against both inbreeding and cross-species hybridization, report ...
Dec 23, 2010 |
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Florida panthers bound back thanks to Texas mates
In the quest to save the endangered Florida panther, their Texas cousins were the cat's meow. Wildlife biologists moved eight female panthers from Texas - close relatives yet genetically distinct - into south ...
Sep 23, 2010 |
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Smell the love
(PhysOrg.com) -- Mandrills can use body odour to identify potential mates, researchers have found, in a study which lends new support to the theory that humans also have the ability to "sniff out" suitable ...
Aug 04, 2010 |
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Study: Darwin was right to worry that marriage to his cousin affected his offspring
New research suggests that Charles Darwin's family was a living human example of a theory that he developed about plants: that inbreeding could negatively affect the health and number of resulting offspring.
May 03, 2010 |
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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 called inbreeding depression. Deleterious alleles causing inbreeding depression can subsequently be removed through culling. This is known as genetic purging.
Livestock breeders often practice inbreeding to "fix" desirable characteristics within a population. However, they must then cull unfit offspring, especially when trying to establish the new and desirable trait in their stock.
In plant breeding, inbred lines are used as stocks for the creation of hybrid lines to make use of the heterosis effect. Inbreeding in plants also occurs naturally in the form of self-pollination.
For more information about Inbreeding, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
