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Strategies to maximise the allelic diversity maintained in small conserved populations

Published online by Cambridge University Press:  27 February 2018

J. Fernández ,
M.A. Toro  and
A. Caballero
J. Fernández
Affiliation:
Departamento de Mejora Genética Animal, INIA, Carretera A Coruña km. 7, 28040 Madrid, Spain
M.A. Toro
Affiliation:
Departamento de Mejora Genética Animal, INIA, Carretera A Coruña km. 7, 28040 Madrid, Spain
A. Caballero
Affiliation:
Universidad de Vigo, 36200 Vigo, Spain
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Extract

One of the main objectives in conservation programmes is to maintain the highest levels of genetic variability, for the population to be able to face future environmental changes and to assure long-term response to selection, either natural or artificial (Oldenbroek, 1999, Barker, 2001). The classical measure of genetic diversity is the expected heterozygosity, or gene diversity (GD), but allelic diversity (AD), or the number of different alleles per locus, also has evolutionary importance. Most optimal strategies for conservation have aimed to maximise GD (e.g. Caballero and Toro 2000), but AD has received much less attention. The objective of the present study is to test the efficiency of the maintenance of allelic diversity of strategies based either on the allelic diversity itself or on the expected heterozygosity in a small population, using information from molecular markers.

Type
Posters
Information
BSAP Occasional Publication , Volume 30: Farm Animal Genetic Resources , 2004 , pp. 324 - 326
Copyright
Copyright © British Society of Animal Science 2004

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References

Barker, J. S. F. 2001. Conservation and management of genetic diversity: a domestic animal perspective. Canadian Journal of Forest Research 31: 588–595.Google Scholar
Caballero, A., Toro, M.A. 2000. Interrelations between effective population size and other pedigree tools for the management of conserved populations. Genetical Research 75: 331–343.Google Scholar
Oldenbroek, J. K. 1999. Genebanks and the Conservation of Farm Animal Genetic Resources. DLO Institute for Animal Sciences and Health, Lelystad, The Netherlands.Google Scholar