Mapping and QTL analysis of the barley population Amagi Nijo × WI2585

2003 ◽  
Vol 54 (12) ◽  
pp. 1141 ◽  
Author(s):  
M. A. Pallotta ◽  
S. Asayama ◽  
J. M. Reinheimer ◽  
P. A. Davies ◽  
A. R. Barr ◽  
...  
Keyword(s):  
Doubled Haploid ◽  
Qtl Analysis ◽  
Malting Quality ◽  
Doubled Haploid Population ◽  
Malt Extract ◽  
Diastatic Power ◽  
Haploid Population ◽  
Manganese Efficiency ◽  
Barley Population

A map for the barley doubled haploid population Amagi Nijo × WI2585 was constructed to examine manganese efficiency derived from Amagi Nijo. Manganese efficiency conferred by the previously identified locus Mel1 was validated. No other loci contributing to manganese efficiency were identified, possibly because of poor maker coverage in some regions. The map was additionally used to look for loci contributing to some aspects of malting quality. A locus on 2HL was found to be associated with malt extract, and 2 loci on 4HL and 5H, respectively, were found to be associated with diastatic power.

scholarly journals Mapping and QTL analysis of the barley population Chebec × Harrington

2003 ◽  
Vol 54 (12) ◽  
pp. 1125 ◽  
Author(s):  
A. R. Barr ◽  
A. Karakousis ◽  
R. C. M. Lance ◽  
S. J. Logue ◽  
S. Manning ◽  
...  
Keyword(s):  
Cyst Nematode ◽  
Cereal Cyst Nematode ◽  
Malting Quality ◽  
Doubled Haploid Population ◽  
Malt Extract ◽  
Malting Barley ◽  
Breeding Programs ◽  
Genomic Location ◽  
Haploid Population ◽  
Barley Population

A doubled haploid population of 120 individuals was produced from the parents Chebec, an Australian 2-row barley of feed quality with resistance to the cereal cyst nematode, and Harrington, a 2-rowed, Canadian variety of premium malting quality. This paper describes 18 field and laboratory experiments conducted with the population and summarises the traits mapped and analysed. The genomic location of 25 traits and genes is described and marker–trait associations for 5 traits (malt extract, diastatic power, resistance to cereal cyst nematode, early flowering, resistance to pre-harvest sprouting) important to Australian efforts to improve malting barley varieties have been used in practical breeding programs. Detailed maps for these populations are shown in this paper, while a consensus map incorporating these maps and further experiments on the populations are described elsewhere in this issue.

QTL analysis of bread-making quality in wheat using a doubled haploid population

2000 ◽  
Vol 100 (8) ◽  
pp. 1167-1175 ◽  
Author(s):  
M. R. Perretant ◽  
T. Cadalen ◽  
G. Charmet ◽  
P. Sourdille ◽  
P. Nicolas ◽  
...  
Keyword(s):  
Doubled Haploid ◽  
Qtl Analysis ◽  
Doubled Haploid Population ◽  
Bread Making ◽  
Haploid Population

scholarly journals Identification and chromosomal location of major genes for resistance to Pyrenophora teres in a doubled-haploid barley population

Genome ◽  
2006 ◽  
Vol 49 (7) ◽  
pp. 855-859 ◽  
Author(s):  
T L Friesen ◽  
J D Faris ◽  
Z Lai ◽  
B J Steffenson
Keyword(s):  
Doubled Haploid ◽  
Doubled Haploid Population ◽  
Pyrenophora Teres ◽  
Net Blotch ◽  
Seedling Resistance ◽  
Drechslera Teres ◽  
Haploid Population ◽  
Barley Population ◽  
Spot Type ◽  
Simple Sequence

Net blotch, caused by Pyrenophora teres, is one of the most economically important diseases of barley worldwide. Here, we used a barley doubled-haploid population derived from the lines SM89010 and Q21861 to identify major quantitative trait loci (QTLs) associated with seedling resistance to P. teres f. teres (net-type net blotch (NTNB)) and P. teres f. maculata (spot-type net blotch (STNB)). A map consisting of simple sequence repeat (SSR) and amplified fragment length polymorphism (AFLP) markers was used to identify chromosome locations of resistance loci. Major QTLs for NTNB and STNB resistance were located on chromosomes 6H and 4H, respectively. The 6H locus (NTNB) accounted for as much as 89% of the disease variation, whereas the 4H locus (STNB resistance) accounted for 64%. The markers closely linked to the resistance gene loci will be useful for marker-assisted selection.Key words: disease resistance, Drechslera teres, molecular markers.

Mapping and QTL analysis of the barley population Galleon × Haruna Nijo

2003 ◽  
Vol 54 (12) ◽  
pp. 1131 ◽  
Author(s):  
A. Karakousis ◽  
A. R. Barr ◽  
J. M. Kretschmer ◽  
S. Manning ◽  
S. J. Logue ◽  
...  
Keyword(s):  
Molecular Markers ◽  
Doubled Haploid ◽  
Qtl Analysis ◽  
Genetic Linkage ◽  
Genetic Linkage Map ◽  
Mapping Population ◽  
Malting Quality ◽  
Barley Cultivar ◽  
Breeding Programs ◽  
Barley Population

A genetic linkage map consisting of 435 molecular markers has been constructed using a doubled-haploid mapping population derived from a cross between the Australian barley feed variety Galleon and Haruna Nijo, a Japanese barley cultivar of high malting quality. This map was used to locate the genes conferring CCN and SFNB resistance from Galleon and to locate malting and brewing quality genes from Haruna Nijo. Closely linked markers to the trait loci have been identified and are now being widely implemented in Australian breeding programs.

scholarly journals QTL Analysis for Plant and Grain Characters of Sake-brewing Rice Using a Doubled Haploid Population

2002 ◽  
Vol 52 (4) ◽  
pp. 309-317 ◽  
Author(s):  
Shinya Yoshida ◽  
Masaru Ikegami ◽  
Junko Kuze ◽  
Keiko Sawada ◽  
Zentaro Hashimoto ◽  
...  
Keyword(s):  
Doubled Haploid ◽  
Qtl Analysis ◽  
Doubled Haploid Population ◽  
Haploid Population

scholarly journals QTL Mapping Reveals the Relationship between Pasting Properties and Malt Extract in Barley

2018 ◽  
Vol 19 (11) ◽  
pp. 3559 ◽  
Author(s):  
Junmei Wang ◽  
Jianming Yang ◽  
Wei Hua ◽  
Xiaojian Wu ◽  
Jinghuan Zhu ◽  
...  
Keyword(s):  
Pasting Properties ◽  
Malting Quality ◽  
Doubled Haploid Population ◽  
Malt Extract ◽  
Malting Barley ◽  
Breeding Lines ◽  
Close Relationship ◽  
Haploid Population ◽  
The Relationship ◽  
Variance Explained

Pasting properties are important characteristics of barley starch from a processing standpoint. Many studies reported the close relationship between pasting properties and malting quality, especially malt extract. However, most conclusions were derived from the correlation between pasting properties and malting quality using a set of cultivars or breeding lines. In this study, a doubled haploid population of 150 lines from a cross between a Japanese malting barley and a Chinese feed barley was grown in four different environments (two sites × two years). Based on average values from all different environments, 17 significant quantitative trait loci (QTL) were identified for pasting properties. The genetic variance explained by these QTL varied from 7.0 to 23.2%. Most QTL controlling pasting properties were located on 1H, 2H, 5H, and 7H. Results confirmed the linkage between pasting properties and malt extract, with most of the QTL for pasting properties becoming nonsignificant when using malt extract as a covariate. Breakdown showed the closest correlation with malt extract. Molecular markers closely linked to the QTL can be used to select desired pasting properties to improve malting quality.

scholarly journals QTL Analysis for Resistance to Phytophthora Blight (Phytophthora capsici Leon.) Using an Intraspecific Doubled-Haploid Population of Capsicum annuum

2006 ◽  
Vol 56 (2) ◽  
pp. 137-145 ◽  
Author(s):  
Toru Sugita ◽  
Kazunori Yamaguchi ◽  
Tetsuji Kinoshita ◽  
Kenichi Yuji ◽  
Yukiyo Sugimura ◽  
...  
Keyword(s):  
Capsicum Annuum ◽  
Doubled Haploid ◽  
Qtl Analysis ◽  
Phytophthora Capsici ◽  
Doubled Haploid Population ◽  
Phytophthora Blight ◽  
Haploid Population
Sign in / Sign up

Export Citation Format

Share Document