Articles
THE USE OF EMPIRICAL BREEDING VALUES TO IMPROVE GENETIC PROGRESS IN HOPS
Article number
848_10
Pages
93 – 100
Language
English
Abstract
A study was conducted on the use of best linear unbiased predictors (BLUP) to estimate breeding values (BV) as a breeding tool to aid the development of seedless triploid aroma hop genotypes.
BLUP is well suited to perennial crop breeding programmes where trials often involve unbalanced data sets conducted on the same plants across multiple environments.
Parental material included noble aroma cultivars Saazer, Hallertauer Mittelfrueh and Fuggle crossed to three New Zealand bred male selections.
The populations derived from these crosses were grown at different times over a five year period.
The resulting BV thus allows the breeder to utilise all of the combined trial data available no matter what the stage of selection development.
They also take into consideration genetic correlations, genetic relatedness and heritability estimates.
The use of the BLUP procedure to estimate genetic gain for important commercial characters and to derive suitable selection indices is discussed.
BLUP is well suited to perennial crop breeding programmes where trials often involve unbalanced data sets conducted on the same plants across multiple environments.
Parental material included noble aroma cultivars Saazer, Hallertauer Mittelfrueh and Fuggle crossed to three New Zealand bred male selections.
The populations derived from these crosses were grown at different times over a five year period.
The resulting BV thus allows the breeder to utilise all of the combined trial data available no matter what the stage of selection development.
They also take into consideration genetic correlations, genetic relatedness and heritability estimates.
The use of the BLUP procedure to estimate genetic gain for important commercial characters and to derive suitable selection indices is discussed.
Publication
Authors
R.A. Beatson, P.A. Alspach
Keywords
best linear unbiased predictor, genetic analysis, selection index, plant breeding, triploids, Humulus lupulus
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