Improving breeding efficiency in potato using molecular and quantitative genetics

Slater, Anthony T., Cogan, Noel O. I., Hayes, Benjamin J., Schultz, Lee, Dale, M. Finlay B., Bryan, Glenn J. and Forster, John W. (2014) Improving breeding efficiency in potato using molecular and quantitative genetics. Theoretical and Applied Genetics, 127 11: 2279-2292. doi:10.1007/s00122-014-2386-8


Author Slater, Anthony T.
Cogan, Noel O. I.
Hayes, Benjamin J.
Schultz, Lee
Dale, M. Finlay B.
Bryan, Glenn J.
Forster, John W.
Title Improving breeding efficiency in potato using molecular and quantitative genetics
Journal name Theoretical and Applied Genetics   Check publisher's open access policy
ISSN 0040-5752
1432-2242
Publication date 2014-11
Sub-type Article (original research)
DOI 10.1007/s00122-014-2386-8
Open Access Status Not yet assessed
Volume 127
Issue 11
Start page 2279
End page 2292
Total pages 14
Place of publication Heidelberg, Germany
Publisher Springer
Language eng
Abstract Cultivated potatoes are highly heterozygous due to their outbreeding nature, and suffer acute inbreeding depression. Modern potato cultivars also exhibit tetrasomic inheritance. Due to this genetic heterogeneity, the large number of target traits and the specific requirements of commercial cultivars, potato breeding is challenging. A conventional breeding strategy applies phenotypic recurrent selection over a number of generations, a process which can take over 10 years. Recently, major advances in genetics and molecular biology have provided breeders with molecular tools to accelerate gains for some traits. Marker-assisted selection (MAS) can be effectively used for the identification of major genes and quantitative trait loci that exhibit large effects. There are also a number of complex traits of interest, such as yield, that are influenced by a large number of genes of individual small effect where MAS will be difficult to deploy. Progeny testing and the use of pedigree in the analysis can provide effective identification of the superior genetic factors that underpin these complex traits. Recently, it has been shown that estimated breeding values (EBVs) can be developed for complex potato traits. Using a combination of MAS and EBVs for simple and complex traits can lead to a significant reduction in the length of the breeding cycle for the identification of superior germplasm.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: Queensland Alliance for Agriculture and Food Innovation
 
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