Please use this identifier to cite or link to this item: https://une.intersearch.com.au/unejspui/handle/1959.11/3145
Title: Optimization of a crossing system using mate selection
Contributor(s): Li, Yongjin (author); Van Der Werf, Julius Herman (author)orcid ; Kinghorn, Brian (author)
Publication Date: 2006
DOI: 10.1051/gse:2005033
Handle Link: https://hdl.handle.net/1959.11/3145
Abstract: A simple model based on one single identified quantitative trait locus (QTL) in a two-way crossing system was used to demonstrate the power of mate selection algorithms as a natural means of opportunistic line development for optimization of crossbreeding programs over multiple generations. Mate selection automatically invokes divergent selection in two parental lines for an over-dominant QTL and increased frequency of the favorable allele toward fixation in the sire-line for a fully-dominant QTL. It was concluded that an optimal strategy of line development could be found by mate selection algorithms for a given set of parameters such as genetic model of QTL, breeding objective and initial frequency of the favorable allele in the base populations, etc. The same framework could be used in other scenarios, such as programs involving crossing to exploit breed effects and heterosis. In contrast to classical index selection, this approach to mate selection can optimize long-term responses.
Publication Type: Journal Article
Source of Publication: Genetics, Selection, Evolution, 38(2), p. 147-165
Publisher: EDP Sciences
Place of Publication: France
ISSN: 0999-193X
Field of Research (FOR): 070201 Animal Breeding
Peer Reviewed: Yes
HERDC Category Description: C1 Refereed Article in a Scholarly Journal
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Appears in Collections:Journal Article
School of Environmental and Rural Science

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