Molecular Markers for Gene Pyramiding and Disease Resistance Breeding in Barley

2007 ◽  
pp. 81-101 ◽  
Author(s):  
Wolfgang Friedt ◽  
Frank Ordon
Keyword(s):  
Molecular Markers ◽  
Disease Resistance ◽  
Gene Pyramiding ◽  
Resistance Breeding ◽  
Disease Resistance Breeding

scholarly journals 997 USE OF MOLECULAR MARKERS IN BREEDING FOR RESISTANCE TO FUNGAL PATHOGENS

HortScience ◽  
1994 ◽  
Vol 29 (5) ◽  
pp. 572c-572
Author(s):  
James D. Kell
Keyword(s):  
Molecular Markers ◽  
Disease Resistance ◽  
Resistance Genes ◽  
Fungal Pathogens ◽  
Rapd Markers ◽  
Resistance Breeding ◽  
Horticultural Crops ◽  
Allele Specific ◽  
Disease Resistance Breeding ◽  
Selection For

The use of RAPD markers in disease resistance breeding has been successfully demonstrated in horticultural crops. The identification of RAPD markers and their potential role in disease resistance breeding was first demonstrated in tomato; the procedure of bulk segregant analysis for detecting linkages between RAPD markers and genes conditioning resistance to downy mildew was described in lettuce; the use of linked RAPD markers to facilitate the efficient pyramiding of epistatic rust resistance genes to prolong their durability has been illustrated in common bean; the development of allele specific or sequence characterized primers linked to resistance genes has been achieved in pea, bean, tomato, and lettuce Indirect selection for disease resistance based on molecular markers is not a replacement for classical breeding procedures. Used as tools, markers offer breeders unique opportunities to combine resistance to an array of different pathogens and efficiently pyramid epistatic resistance genes for highly variable fungal pathogens. This would not always be possible in the absence of linked markers.

In vitro Selection: A Candidate Approach for Disease Resistance Breeding in Fruit Crops

2010 ◽  
Vol 9 (8) ◽  
pp. 437-446 ◽  
Author(s):  
Ramesh Chandra ◽  
Madhu Kamle ◽  
Anju Bajpai ◽  
M. Muthukumar ◽  
Shahina Kalim
Keyword(s):  
Disease Resistance ◽  
In Vitro Selection ◽  
Resistance Breeding ◽  
Fruit Crops ◽  
Disease Resistance Breeding

scholarly journals Advances in Wheat and Pathogen Genomics: Implications for Disease Control

2018 ◽  
Vol 56 (1) ◽  
pp. 67-87 ◽  
Author(s):  
Beat Keller ◽  
Thomas Wicker ◽  
Simon G. Krattinger
Keyword(s):  
Disease Resistance ◽  
Molecular Level ◽  
Resistance Breeding ◽  
Wheat Breeding ◽  
The Past ◽  
Wheat Improvement ◽  
Disease Resistance Breeding ◽  
Near Future ◽  
New Cultivars ◽  
Made In

The gene pool of wheat and its wild and domesticated relatives contains a plethora of resistance genes that can be exploited to make wheat more resilient to pathogens. Only a few of these genes have been isolated and studied at the molecular level. In recent years, we have seen a shift from classical breeding to genomics-assisted breeding, which makes use of the enormous advancements in DNA sequencing and high-throughput molecular marker technologies for wheat improvement. These genomic advancements have the potential to transform wheat breeding in the near future and to significantly increase the speed and precision at which new cultivars can be bred. This review highlights the genomic improvements that have been made in wheat and its pathogens over the past years and discusses their implications for disease-resistance breeding.

scholarly journals 672 PB 148 EXAMINATION OF QUANTITATIVE TRAIT LOCI IN APPLE (MALLUS × DOMESTICA) USING MOLECULAR MARKERS

HortScience ◽  
1994 ◽  
Vol 29 (5) ◽  
pp. 529b-529
Author(s):  
Patrick J. Conner ◽  
Susan K. Brown ◽  
Norman F. Weeden
Keyword(s):  
Molecular Markers ◽  
Morphological Traits ◽  
Random Amplified Polymorphic Dna ◽  
Dominant Gene ◽  
Resistance Breeding ◽  
Breeding Program ◽  
Multiple Disease Resistance ◽  
Parental Material ◽  
Disease Resistance Breeding ◽  
Plant Form

Molecular markers (isozyme and DNA) have been used to map apple and have helped to elucidate the inheritance of some morphological traits. In this project random amplified polymorphic DNA (RAPD) and isozyme markers were used to create maps for `Wijcik McIntosh, a columnar (reduced branching) sport of `McIntosh' and NY 75441-67, an advanced selection from the multiple disease resistance breeding program. NY 75441-67 is resistant to scab source of resistance from M. floribunda) and resistant to cedar apple rust. `Wijcik McIntosh' is being used in the breeding program as a source of the dominant gene, Co, for reduced branching, but there is also interest in this genotype because of the tremendous variation in plant form observed in progenies segregating for columnar habit. Some of these form variants may be of greater commercial interest than the parental material. Morphological traits examined in this progeny included plant height, stem diameter, suckering, branching habit, spur production, and internode length. The usefulness of molecular markers to pre-select for components of plant form is being examined. Molecular markers promise to aid our understanding and manipulation of quantitative morphological traits.

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