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 ?
Mattias Grammling, said, "our partnership with IFC will help eliminate the bottle-necks on loan acquisitions and enable us provide growth opportunities for lower income clients to foster job creation and economic growth.
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.
ABINGDON, England -- Celoxica RC250 Accelerates SOPC Development and System Bottle-Necks for Complex Multimedia and Communications Applications
The International Bank of Azerbaijan has already purchased 300 additional ATMs for pension payments to be installed after bottle-necks in payment system are identified.
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.
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.
8GFC will prevent bottle-necks in the point-to-point and loop topologies over copper inside the disk array before they can occur.
As well, Assurency SecureData's architecture eliminates system level bottle-necks and the need for network and SAN reconfiguration and/or recertification.
Mattias Grammling, adds, our partnership with IFC will help eliminate the bottle-necks on loan acquisitions and enable us provide growth opportunities for lower income clients to foster job creation and economic growth.