eCite Digital Repository
Development and validation of markers closely linked to crown rot resistance in wheat and barley
Citation
Li, HB and Zhou, MX and Liu, CJ, Development and validation of markers closely linked to crown rot resistance in wheat and barley, Molecular Plant Breeding, 3, (8) pp. 80-90. ISSN 1923-8266 (2012) [Refereed Article]
![]() | PDF 535Kb |
Copyright Statement
Licensed under Creative Commons Attribution 3.0 Unported (CC BY 3.0) http://creativecommons.org/licenses/by/3.0/
DOI: doi:10.5376/mpb.2012.03.0008
Abstract
Crown rot (CR), caused by various Fusarium species, is a chronic cereal disease in Australia and many other parts of the world. As part of our objective of improving the efficiency of breeding CR-resistant wheat and barley varieties, we have been searching for novel sources of resistance and identifying new genes conferring CR resistance in the two crops. This paper reports on
the development of more closely linked markers and validation of the effects of the previously identified wheat 3B CR quantitative trait loci (QTL) and the barley 3H major CR locus using four wheat and three barley validation populations. With an effect varied from 36.7 to 59.4% in wheat and 29.4 to 55.2% in barley, the validation experiments demonstrated that both of the 3B and 3H CR
locus have a stable and significant effect in reducing CR severity at different genetic backgrounds. The huge effect of a single QTL as
the CR loci detected in this study warrant a significant value of incorporating these two genes in wheat and barley breeding. The
possible homoeologous relationship between these two major CR loci is preliminarily investigated by comparative mapping the two
genomic regions and it warrants further investigation.
Keywords Wheat; Barley; Crown rot; Validation; Com
Item Details
Item Type: | Refereed Article |
---|---|
Keywords: | wheat, barley, crown rot, Fusarium, resistance, validation, comparative mapping |
Research Division: | Agricultural, Veterinary and Food Sciences |
Research Group: | Crop and pasture production |
Research Field: | Crop and pasture improvement (incl. selection and breeding) |
Objective Division: | Plant Production and Plant Primary Products |
Objective Group: | Grains and seeds |
Objective Field: | Barley |
UTAS Author: | Li, HB (Dr Haobing Li) |
UTAS Author: | Zhou, MX (Professor Meixue Zhou) |
ID Code: | 78541 |
Year Published: | 2012 |
Deposited By: | Agricultural Science |
Deposited On: | 2012-07-05 |
Last Modified: | 2013-05-14 |
Downloads: | 499 View Download Statistics |
Repository Staff Only: item control page