Journal ArticleDOI
Marker-assisted pyramiding of Thinopyrum-derived leaf rust resistance genes Lr19 and Lr24 in bread wheat variety HD2733.
Mona Singh,Niharika Mallick,Suresh Chand,Pratima Kumari,J. B. Sharma,M. Sivasamy,P. Jayaprakash,Kumble Vinod Prabhu,Shailendra K. Jha,Vinod +9 more
TLDR
The combination of these two genes in the cultivar HD2733 is expected to provide durable leaf rust resistance in farmers’ fields.Abstract:
This study was undertaken to pyramid two effective leaf rust resistance genes (Lr19 and Lr24) derived from Thinopyrum (syn. Agropyron), in the susceptible, but agronomically superior wheat cultivar HD2733 using marker-assisted selection. In the year 2001, HD2733 was released for irrigated timely sown conditions of the north eastern plains zone (NEPZ) of India became susceptible to leaf rust, a major disease of the region. Background selection helped in developing near-isogenic lines (NILs) of HD2733 with Lr19 and Lr24 with 97.27 and 98.94%, respectively, of genomic similarity with the parent cultivar, after two backcrossing and one generation of selfing.NILs were intercrossed to combine the genes Lr19 and Lr24. The combination of these two genes in the cultivar HD2733 is expected to provide durable leaf rust resistance in farmers' fields.read more
Citations
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Journal ArticleDOI
Developing stripe rust resistant wheat (Triticum aestivum L.) lines with gene pyramiding strategy and marker-assisted selection
Rong Liu,Jing Lu,Min Zhou,Shigang Zheng,Zehou Liu,Chihong Zhang,Mei Du,Minxiu Wang,Yunfang Li,Yu Wu,Lei Zhang +10 more
TL;DR: The results showed that the number of pyramided Yr genes was significant correlated with stripe rust resistance, and Yr-gene pyramiding lines with desirable agronomic traits were obtained for durable controlling Pst in wheat breeding.
Journal ArticleDOI
Integrating multipurpose perennial grains crops in Western European farming systems
Olivier Duchene,Florian Celette,Matthew R. Ryan,Lee R. DeHaan,Timothy E. Crews,Christophe David +5 more
TL;DR: In this paper, the value of year-round ground cover and root activity, as well as the ability to harvest both grain and forage production, offers a large range of interest and potential application for such a grain crop.
Book ChapterDOI
Advances in Molecular Markers and Their Use in Genetic Improvement of Wheat
TL;DR: In this paper, the authors reviewed the recent advancements made in the area of molecular marker technologies such as hybridization-based platforms (fixed array), genotyping-by-sequencing (de novo), KASP, etc.
Journal ArticleDOI
Marker-Assisted Gene Pyramiding and the Reliability of Using SNP Markers Located in the Recombination Suppressed Regions of Sunflower (Helianthus annuus L.).
TL;DR: Five pyramids with different combinations of rust resistance genes were selected in the homozygous condition through marker-assisted selection, and three of them were combined with a DM resistance gene PlArg, potentially providing multiple and durable resistance to both rust and DM.
Journal ArticleDOI
Breeding with Major and Minor Genes: Genomic Selection for Quantitative Disease Resistance
TL;DR: In this paper, the authors used genomic selection (GS) models for use in breeding programs that are needed to select both major and minor genes for resistance to stripe rust (Puccinia striiformis Westend. sp. tritici Erikss).
References
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Rapid isolation of high molecular weight plant DNA
TL;DR: A method is presented for the rapid isolation of high molecular weight plant DNA which is free of contaminants which interfere with complete digestion by restriction endonucleases, and which yields total cellular DNA.
Book
Catalogue of gene symbols for wheat
TL;DR: The University of Sydney, Plant Breeding Institute Cobbitty, PMB 11, Camden, N.W., Australia, 2570, bobm@camden.usyd.edu.au National Institute of Genetics, 111 Yata Mishima, Shizuoka 411-8540 Japan.
Journal ArticleDOI
A diagrammatic scale for estimating rust intensity on leaves and stems of cereals
TL;DR: The Cobb scale and the modified Cobb (U.S.D.A.) scale were devised for estimating, by means of diagrams, the proportion of the area of a leaf or stem occupied by rust pustules, are presented, providing a basis for more objective and accurate determinations.