bottleneck

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A marked decrease in gene pool diversity due to a low number of genetically distinct individuals in the population, i.e., a population bred from 2 individuals has far fewer variables on the allelic loci—a bottleneck—than a second population bred from hundreds of individuals

bottleneck

a period in the history of a population during which the number of individuals is reduced to a low number, perhaps by disease or extreme environmental conditions. As a result RANDOM GENETIC DRIFT may occur in the population. See also FOUNDER EFFECT.
References in periodicals archive ?
Xpedio eliminates the Web master bottle-neck by enabling everyone across the enterprise to easily contribute, manage and automatically publish content from their desktops, delivering dynamic, personalized and accurate information to other employees, customers and partners.
Yu Deng, the President of Bluepoint, said: "The lack of reliable technical support and the lack of high quality Linux solutions that meet the need of the Chinese market have been a bottle-neck in the Linux development in China.
This achievement marks the transition of ADSL technology from single vendor limitations to widespread interoperability; removing the principal bottle-neck to the mass deployment of broadband services for residential and business consumers.
After the recent fare hike, at this end of the East Lancs Road at least, I've noticed even more empty buses snarling up the box junctions at the city centre bottle-necks.
The discussions and deliberations in the seminar would provide an excellent opportunity to identify the impediments and bottle-necks and ways and means for proper soil management, they added.
ABINGDON, England -- Celoxica RC250 Accelerates SOPC Development and System Bottle-Necks for Complex Multimedia and Communications Applications
Company's new perforation system is designed for precision venting at the junction of bottle-necks and caps on full range of containers, including hospitality-sizes such as those used for room service and in mini-bars, as well as on gift packs and sample sizes.
Finally, the city's roads will further suffer from the increased volume of traffic and so the bottle-necks in the transport network need to be removed' a western bypass from the A45 Allesley to a new M6 junction at Corley would take traffic away from the north west of the city and the north/south road which desperately needs phase three to be completed and join on to the A46.
8GFC will prevent bottle-necks in the point-to-point and loop topologies over copper inside the disk array before they can occur.