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Book Molecular Characterzation and Inheritance of Yellow Rust Resistance in Wheat Triticum Aestivum L Em Thell With CD Copy

Download or read book Molecular Characterzation and Inheritance of Yellow Rust Resistance in Wheat Triticum Aestivum L Em Thell With CD Copy written by Jagdale Vijay Rajaram and published by . This book was released on 2017 with total page 129 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Molecular Characterization of Diverse Genotypes of Bread Wheat triticum Aestivum L Em Thell for Leaf and Stripe Rust Resistance With CD Copy

Download or read book Molecular Characterization of Diverse Genotypes of Bread Wheat triticum Aestivum L Em Thell for Leaf and Stripe Rust Resistance With CD Copy written by Pooja and published by . This book was released on 2014 with total page 57 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Genetic Analysis of Segregating Generations for Yellow Rust Resistance in Bread Wheat Triticum Aestivum L Em Thell With CD Copy

Download or read book Genetic Analysis of Segregating Generations for Yellow Rust Resistance in Bread Wheat Triticum Aestivum L Em Thell With CD Copy written by Shipra Gangopadhyay and published by . This book was released on 2018 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Molecular Characterization of Durable Yellow and Leaf Rust Resistance in Two Wheat Populations

Download or read book Molecular Characterization of Durable Yellow and Leaf Rust Resistance in Two Wheat Populations written by Bhoja Basnet and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Wheat (Triticum aestivum L.) is one of the most important food crops, comprising the largest source of daily calorie and protein intake of human beings worldwide. Among the several diseases of wheat, Yellow Rust (YR; caused by Puccinia striiformis Westend. f. sp. tritici) and Leaf Rust (LR; caused by Puccinia triticina Erikss. & Henn.) have always been major production constraints since the domestication of wheat. For the last few decades, scientists have invested large efforts to identify, characterize and utilize Adult Plant Resistance (APR), a.k.a. slow rusting resistance, in wheat germplasm to promote durability of resistance against rust. The objectives of this study were to 1) understand the genetics of APR to YR and/or LR present in two potential wheat lines 'Quaiu 3' and 'TAM 111', and 2) map the putative Quantitative Trait Loci (QTL) associated with YR and LR resistance using DNA-based molecular markers. Two Recombinant Inbred Line (RIL) populations were subjected to YR and LR disease evaluation experiments in multiple years and locations. Visual evaluation of Disease severity (DS) and Infection Type (IT) score in both RIL populations showed that APR to YR and LR were highly heritable quantitative traits with significant correlation among experiments. In spring wheat population, composite interval mapping consistently detected four and three large effect QTL for YR and LR resistance, respectively. Among those QTLs, 1B, 3B and 1D QTL were found to be associated with previously characterized genes Lr46/Yr29, Sr2/Yr30 and Lr42, respectively. However, QTLs QYr.tam-3D and QYr.tam-2D were potentially novel. The largest YR QTL QYr.tam-2D was located on long arm of chromosome 2D explaining about 48 to 61% of the total phenotypic variation. Similarly, in winter wheat population, apart from three environment-specific QTL on chromosomes 1A, 2A and 7D, the QTL on chromosome 2B (QYr.tam-2B) was found to express consistently in multiple environments explaining about 23 to 63% of total phenotypic variation. This study has further elucidated the inheritance mechanism of APR to YR and LR present in two different wheat lines, Quaiu 3 and TAM 111, and resulted in the successful mapping and characterization of the genetic loci associated with corresponding disease resistance traits. These findings should be very useful to isolate the novel APR genes and/or directly use in wheat breeding programs to enhance durable rust resistance in diverse wheat germplasm and cultivars in the future.

Book Marker Assisted Selection for Introgression of Yellow Rust Resistance Yr Genes in Bread Wheat Triticum Aestivum L Em Thell With CD Copy

Download or read book Marker Assisted Selection for Introgression of Yellow Rust Resistance Yr Genes in Bread Wheat Triticum Aestivum L Em Thell With CD Copy written by Reema Rani and published by . This book was released on 2018 with total page 165 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Phenotypic and Molecular Characterization of HD2967 X Kharchia 65F5 and Backcross Generations Fos Salt Tolerance in Wheat Triticum Aestivum L Em Thell With CD Copy

Download or read book Phenotypic and Molecular Characterization of HD2967 X Kharchia 65F5 and Backcross Generations Fos Salt Tolerance in Wheat Triticum Aestivum L Em Thell With CD Copy written by Pooja Saini and published by . This book was released on 2019 with total page 75 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Phenotyping and Microsatellite Marker Analysis for Yellow Rust in WH711 X WH542 F2 Population of Wheat Triticum Aestivum L Em Thell With CD Copy

Download or read book Phenotyping and Microsatellite Marker Analysis for Yellow Rust in WH711 X WH542 F2 Population of Wheat Triticum Aestivum L Em Thell With CD Copy written by Medhavi Vashisth and published by . This book was released on 2014 with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Genetics Abstracts

Download or read book Genetics Abstracts written by and published by . This book was released on 1996 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Phenotypic and Molecular Characterization of F5 and Backcross Generations for Salt Tolerance in Wheat Triticum Aestivum L Em Thell With CD Copy

Download or read book Phenotypic and Molecular Characterization of F5 and Backcross Generations for Salt Tolerance in Wheat Triticum Aestivum L Em Thell With CD Copy written by Prakash Narayan Tiwari and published by . This book was released on 2019 with total page 73 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Characterization of a Gene from Breeding Line WX93D180 Conferring Resistance to Leaf Rust Puccinia Triticina in Wheat

Download or read book Characterization of a Gene from Breeding Line WX93D180 Conferring Resistance to Leaf Rust Puccinia Triticina in Wheat written by Hsiao-Yi Hung and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Wheat (Triticum aestivum L. em. Thell, 2n=6x=42, AABBDD) is subjected to significant yield losses by the endemic leaf rust pathogen, Puccinia triticina (Roberge ex Desmaz. F. sp. tritici). Breeding for resistance to this disease is a more appropriate option both environmentally and economically over fungicidal application. More than 57 leaf rust resistance genes in wheat have been identified and many of the resistance genes have been successfully introgressed into resistant cultivars, yet the continuous shifting of predominant races of P. triticina continues to be a challenge to breeders. Pyramiding multiple resistance genes into a single resistant cultivar is one of the preferred strategies to develop superior disease resistant cultivars. Efficient pyramiding requires the utilization of markers closely linked to the resistance genes. The objectives of this study were to characterize a novel source of resistance to leaf rust introgressed into the breeding line WX93D180-R-8-1, to determine its inheritance, map position, and linkage with molecular markers suitable for marker assisted selection. According to the pedigree of WX93D180, TX86D1310*3/TTCC417, the resistance in this breeding line should be derived from TTCC417 (Turkey tritici cereal collection), which was thought to be Triticum monococcum, which is a diploid species made up of only the A genome. However, our marker analyzes results indicated the resistance gene is located in the D genome and has the same location as the cloned leaf rust resistance gene Lr21. We verified the result in our population using primers from Lr21 and found the same segregation pattern with the phenotypic data (disease response). Therefore the pedigree is incorrect, TTCC417 was misidentified, or the resistance was not from TTCC417.

Book Molecular Characterization of Effective Sources of Stripe Rust Resistance in Tetraploid Wheat

Download or read book Molecular Characterization of Effective Sources of Stripe Rust Resistance in Tetraploid Wheat written by Weizhen Liu and published by . This book was released on 2016 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: Stripe rust, caused by Puccinia striiformis f. sp. tritici (Pst), is a globally devastating disease of wheat. New Pst races overcoming the currently resistant wheat varieties and more frequent stripe rust-favorable weather conditions threaten the global wheat crops. The most economically and environmentally friendly approach to control stripe rust is to grow highly resistant cultivars with durable resistance. However, development of varieties with high levels of durable resistance has been limited by the small number of well-characterized and effective resistance genes available and technical difficulties in pyramiding several resistance genes in one plant. In order to identify more resistance genes and provide more marker-trait association information for marker-assisted selection and wheat improvement, genome-wide association mapping was conducted in cultivated emmer wheat (Triticum turgidum ssp. dicoccum), elite durum wheat (Triticum turgidum ssp. durum) and Ethiopian durum wheat landrace populations using the wheat 90,000 Illumina iSelect single nucleotide polymorphism array. In emmer wheat population, we identified thirty-eight loci significantly associated (P