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Tag: "inbreeding" at biology news

The mouflons of the Kerguelen archipelago

...kely to reproduce amongst themselves, resulting in inbreeding and homozygotes. The genetic variety of the population becomes impoverished and its evolutionary potential decreases. Furthermore, consanguinity is known to produce genetic diseases. The most heterozygous individuals are better able to resist these d...

Female Antarctic seals give cold shoulder to local males

...nd a mate with high genetic diversity and to avoid inbreeding (while the males will remain static waiting to be chosen). This unique mating practice enables the seals to avoid the loss of genetic variation which occurs when females of the species only mate with dominant males with favoured traits. This is s...

New study is first to link romantic relationships to genes

... than similar ones. This preference may help avoid inbreeding between partners, as well as strengthen the immune systems of their offspring through exposure to a wider variety of pathogens. The study investigated whether MHC similarity among romantically involved couples predicted aspects of their sexual re...

Wolves are suffering less from inbreeding than expected

Increasing levels of inbreeding is a threat against the viabi lity of the Scandina... 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 v...

Completed genome set to transform the cow

...nd marbling." He says, despite the centuries of inbreeding involved in developing different cattle breeds, most maintain a "surprisingly large" degree of genetic diversity. Contributors to the US$53 million international effort to sequence the genome of the cow (Bos taurus) include: the National Human Genome...

Costly breeding programs for endangered species pay off

...rm benefits for breeding schemes that used limited inbreeding in order to produce stronger individuals," said Li...ed inbreeding. "The benefits of maximum-avoidance inbreeding were difficult to detect as long as the populations remained captive," said Meffert. "It's not clear...

Expanding forests darken the outlook for butterflies, study shows

...e born in, and the shrinking meadows could lead to inbreeding and the decreased diversity in the gene pool, Roland said. "In general, inbreeding leads a species to be more vulnerable to a variety of mortality factors that lower survival rates," ...

Genetic links could unlock clues to leading cause of blindness

...e area, they could mate only with each other. This inbreeding has predisposed the monkeys to various genetic diseases, such as age-related macular degeneration. Unlike most other animals, a rhesus monkey's eyes have the same complex structure as a human eye, making them a model study subject. They're so simila...

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