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Dive into the research topics where S. Logue is active.

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Featured researches published by S. Logue.


Crop & Pasture Science | 2003

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

A. Karakousis; A. R. Barr; J. M. Kretschmer; S. Manning; S. Logue; S. Roumeliotis; Helen M. Collins; K. J. Chalmers; Chengdao Li; Reg Lance; Peter Langridge

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.


Crop & Pasture Science | 2003

Mapping and QTL analysis of the barley population Alexis × Sloop

A. R. Barr; S. P. Jefferies; S. Broughton; K. J. Chalmers; J.M. Kretschmer; W.J.R. Boyd; Helen M. Collins; S. Roumeliotis; S. Logue; Stewart Coventry; D.B. Moody; B.J. Read; David Me Poulsen; Reg Lance; Greg J. Platz; Robert F. Park; J.F. Panozzo; A. Karakousis; P. Lim; Arūnas P. Verbyla; P. J. Eckermann

Two populations between the German malting variety Alexis and the Australian malting variety Sloop were constructed, mapped, phenotyped, and subjected to quantitative trait loci analysis. One population consisted of 153 F4-derived recombinant inbred lines and the other of 111 doubled haploid lines. This paper describes 18 field and laboratory experiments conducted with the populations and summarises the traits mapped and analysed. The genetic basis of 5 traits (malt extract, resistance to leaf rust, resistance to powdery mildew, early flowering, plant stature) important to Australian efforts to improve malting barley varieties was elucidated. 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.


Crop & Pasture Science | 2003

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

Margaret Pallotta; S. Asayama; J. M. Reinheimer; P. A. Davies; A. R. Barr; S. P. Jefferies; K. J. Chalmers; J. Lewis; Helen M. Collins; S. Roumeliotis; S. Logue; Stewart Coventry; Reg Lance; A. Karakousis; P. Lim; Arūnas P. Verbyla; P. J. Eckermann

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.


Crop & Pasture Science | 2003

Mapping and validation of chromosome regions associated with high malt extract in barley (Hordeum vulgare L.)

Helen M. Collins; J. F. Panozzo; S. Logue; S. P. Jefferies; A. R. Barr


Crop & Pasture Science | 2003

Use of putative QTLs and structural genes in marker assisted selection for diastatic power in malting barley (Hordeum vulgare L.)

Stewart Coventry; Helen M. Collins; A. R. Barr; S. P. Jefferies; K. J. Chalmers; S. Logue; Peter Langridge


Archive | 2000

Using QTL Mapping to Improve our Understanding of Malt Extract

Helen M. Collins; S. Logue; S. P. Jefferies; A. R. Barr


Archive | 2004

An Investigation of the Relative Rates of Protein and Carbohydrate Modification of a Number of International Malting Varieties, Grown in Three Countries

Helen M. Collins; J. Swanston; B. Rossnagel; S. Logue


Archive | 2003

Mapping and validation of chromosome regions associated with high malt extract in barley (

Helen M. Collins; J. F. Panozzo; S. Logue; S. P. Jefferies; A. R. Barr


Archive | 2003

Use of putative QTLs and structural genes in marker assisted selection for diastatic power in malting barley (

Stewart Coventry; Helen M. Collins; A. R. Barr; S. P. Jefferies; K. J. Chalmers; S. Logue; Peter Langridge


Archive | 2004

Understanding the genetic bases of modification

Helen M. Collins; S. Logue; J. Eglinton

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A. R. Barr

University of Adelaide

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P. Lim

University of Adelaide

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