A proximal decomposition of inbreeding, coancestry and contributions

Genetics Research
Jean-Jacques Colleau, M Sargolzaei

Abstract

Wright's (1922) coalescence probabilistic method decomposes the average coancestry or the average inbreeding of the population of interest into contributions of ancestors who are directly responsible for coancestry. These ancestors are less numerous and younger than those given by Caballero & Toro's (2000) method. Then, Wright's method yields a more parsimonious representation of the origin of coancestry or inbreeding. Results of Wright's method, called proximal because ancestors are younger, can be obtained from the latter method using a simple matrix transformation. Detailed algorithms are presented. Both methods can be used for assessing the overall efficiency of a breeding scheme in balancing genetic gain and coancestry rate, yielding very similar results when generations are discrete.

References

Apr 1, 1997·Journal of Animal Science·T H Meuwissen
Sep 25, 2002·Genetics, Selection, Evolution : GSE·Jean-Jacques Colleau
Aug 22, 2003·Genetics·Leopoldo SánchezJohn A Woolliams
Sep 30, 2005·Journal of Animal Breeding and Genetics = Zeitschrift Für Tierzüchtung Und Züchtungsbiologie·M SargolzaeiJ-J Colleau

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Citations

Mar 24, 2012·Animal : an International Journal of Animal Bioscience·M A ToroA Mäki-Tanila
Jul 22, 2014·Animal Science Journal = Nihon Chikusan Gakkaihō·Mohsen DadarMohammd Ali Edriss
Sep 29, 2011·Journal of Dairy Science·K StachowiczF S Schenkel
May 17, 2017·Animal : an International Journal of Animal Bioscience·F J NavasJ V Delgado
Aug 10, 2015·Tropical Animal Health and Production·Mário Luiz Santana, Annaiza Braga Bignardi
Oct 22, 2020·Animals : an Open Access Journal From MDPI·José Manuel Alanzor PuenteFrancisco Javier Navas González
Jan 14, 2021·Scientific Reports·Carlos Iglesias PastranaMaría Teresa Abelló
Jul 1, 2020·Research in Veterinary Science·David Casanovas AriasCecilio José Barba Capote

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