Impact of depth of pedigree and inclusion of historical data on the estimation of additive variance and breeding values in a sugarcane breeding program

Atkin, F.C., Dieters, M.J. and Stringer, J.K. (2009) Impact of depth of pedigree and inclusion of historical data on the estimation of additive variance and breeding values in a sugarcane breeding program. THEORETICAL AND APPLIED GENETICS, 119 3: 555-565. doi:10.1007/s00122-009-1065-7


Author Atkin, F.C.
Dieters, M.J.
Stringer, J.K.
Title Impact of depth of pedigree and inclusion of historical data on the estimation of additive variance and breeding values in a sugarcane breeding program
Journal name THEORETICAL AND APPLIED GENETICS   Check publisher's open access policy
ISSN 0040-5752
Publication date 2009-08
Year available 2009
Sub-type Article (original research)
DOI 10.1007/s00122-009-1065-7
Volume 119
Issue 3
Start page 555
End page 565
Total pages 11
Editor A.E. Melchinger
Place of publication Germany
Publisher Springer
Collection year 2010
Language eng
Subject C1
820304 Sugar
060412 Quantitative Genetics (incl. Disease and Trait Mapping Genetics)
Abstract Sugarcane breeders in Australia combine data across four selection programs to obtain estimates of breeding value for parents. When these data are combined with full pedigree information back to founding parents, computing limitations mean it is not possible to obtain information on all parents. Family data from one sugarcane selection program were analysed using two different genetic models to investigate how different depths of pedigree and amount of data affect the reliability of estimating breeding value of sugarcane parents. These were the parental and animal models. Additive variance components and breeding values estimated from different amounts of information were compared for both models. The accuracy of estimating additive variance components and breeding values improved as more pedigree information and historical data were included in analyses. However, adding years of data had a much larger effect on the estimation of variance components of the population, and breeding values of the parents. To accurately estimate breeding values of all sugarcane parents, a minimum of three generations of pedigree and 5 years of historical data were required, while more information (four generations of pedigree and 7 years of historical data) was required when identifying top parents to be selected for future cross pollination.
Keyword LINEAR UNBIASED PREDICTION
GENETIC-PARAMETERS
SELECTION
TRIALS
INFORMATION
RESISTANCE
MARKERS
MODELS
ERRORS
BLUP
Q-Index Code C1
Q-Index Status Confirmed Code

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2010 Higher Education Research Data Collection
School of Agriculture and Food Sciences
 
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Created: Fri, 04 Sep 2009, 10:25:51 EST