کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
2439971 | 1108108 | 2008 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Investigations on Merging Breeds in Genetic Conservation Schemes
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم دامی و جانورشناسی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Genetic diversity within livestock species is threatened by extinction of breeds and by genetic drift; the need to conserve genetic diversity by conservation schemes is widely accepted. To maintain the between-breed diversity, breeds are usually kept separately in live conservation schemes. However, in some cases it might be very difficult or even impossible to conserve a highly endangered breed in a closed population. If this breed is important for diversity, it might be beneficial to merge it with one or more breeds to conserve a part of the diversity that is contributed by this breed. The present study introduces a general framework that may enable one to decide when it is beneficial to form a synthetic breed that includes highly endangered breeds to maximize conserved diversity and when to keep the breeds separate. Expected future diversities were estimated using a kinship-based diversity measure together with extinction probabilities of the breeds. Using a small hypothetical data set, the pattern of diversity and its 2 components, within-breed and between-breed diversity, were analyzed in detail when forming a synthetic breed. The suggested approach was applied to a data set of 13 central European red and yellow cattle breeds. The results suggested forming a synthetic breed by combining a nonendangered breed with 1 of the 2 highly endangered breeds, which would result in a slight increase in conserved diversity.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Dairy Science - Volume 91, Issue 6, June 2008, Pages 2512-2519
Journal: Journal of Dairy Science - Volume 91, Issue 6, June 2008, Pages 2512-2519
نویسندگان
J. Bennewitz, H. Simianer, T.H.E. Meuwissen,