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wheat loose smut

Sachin Kumar, Ron E Knox, Asheesh K Singh, Ron M DePauw, Heather L Campbell, Julio Isidro-Sanchez, Fran R Clarke, Curtis J Pozniak, Amidou N'Daye, Brad Meyer, Andrew Sharpe, Yuefeng Ruan, Richard D Cuthbert, Daryl Somers, George Fedak
Loose smut, caused by Ustilago tritici (Pers.) Rostr., is a systemic disease of tetraploid durum wheat (Triticum turgidum L.). Loose smut can be economically controlled by growing resistant varieties, making it important to find and deploy new sources of resistance. Blackbird, a variety of T. turgidum L. subsp. carthlicum (Nevski) A. Love & D. Love, carries a high level of resistance to loose smut. Blackbird was crossed with the loose smut susceptible durum cultivar Strongfield to produce a doubled haploid (DH) mapping population...
2018: PloS One
Carolina Diaz Quijano, Fabienne Wichmann, Thomas Schlaich, Alessandro Fammartino, Jana Huckauf, Kerstin Schmidt, Christoph Unger, Inge Broer, Christof Sautter
Ustilago tritici causes loose smut, which is a seed-borne fungal disease of wheat, and responsible for yield losses up to 40%. Loose smut is a threat to seed production in developing countries where small scale farmers use their own harvest as seed material. The killer protein 4 (KP4) is a virally encoded toxin from Ustilago maydis and inhibits growth of susceptible races of fungi from the Ustilaginales. Enhanced resistance in KP4 wheat to stinking smut, which is caused by Tilletia caries, had been reported earlier...
September 2016: Biotechnology Reports
P Dhitaphichit, P Jones, E M Keane
Using disomic chromosome substitution lines based on the susceptible wheat cultivar 'Chinese Spring', loose smut resistance of wheat cultivars 'Hope' and 'Thatcher' was shown to be conferred in each case by a single dominant major gene carried on chromosome 7 A ('Hope') or 7 B ('Thatcher'). Partial resistance was determined by genes on an additional eight 'Hope' or seven 'Thatcher' chromosomes, and similarities were evident between the partial resistance genotypes of'Hope' and 'Thatcher'. 'Chinese Spring' exhibited a mean infection value of approximately 50%, indicating a significant level of partial resistance, which was found to be due, in part, to genes on the homoeologous chromosome arms 1 As, 1 Es and 1 Ds, and to cytoplasmic genes...
December 1989: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
R E Knox, N K Howes
Many genes have been located in wheat chromosomes, yet little is known about the location of genes for resistance to Ustilago tritici, which causes loose smut. Crosses were made between the loose smut susceptible alien substitution lines Cadet 6Ag(6A) and Rescue 6Ag(6A) (lines in which Agropyron chromosome 6 is substituted by wheat chromosome 6A) and four cultivars resistant to U. tritici race T19: 'Cadet', 'Kota', 'Thatcher' and 'TD18'. The segregating progeny were tested for reaction to race T19 and for the level of binding with a monoclonal antibody specific to a chromosome 6A-coded seed protein...
November 1994: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
L I Laikova, I A Belan, E D Badaeva, L P Posseeva, S S Shepelev, V K Shumny, L A Pershina
Synthetic hexaploids are bridges for transferring new genes that determine resistance to stress factors from wild-type species to bread wheat. In the present work, the method of developing the spring bread wheat variety Pamyati Maystrenko and the results of its study are described. This variety was obtained using one of the immune lines produced earlier via the hybridization of the spring bread wheat variety Saratovskaya 29 with the synthetic hexaploid T. timopheevii Zhuk. x Ae. tauschii Coss. The C-staining of chromosomes in the Pamyati Maystrenko variety revealed substitutions of 2B and 6B chromosomes by the homeologous chromosomes of the G genome of T...
January 2013: Genetika
Blair J Goates, Julien Mercier
Volatile organic compounds produced by the fungus Muscodor albus inhibit or kill numerous fungi. The effect of these volatiles was tested on dormant and physiologically active teliospores of the smut fungi Tilletia horrida, Tilletia indica, and Tilletia tritici, which cause kernel smut of rice, Karnal bunt of wheat, and common bunt of wheat, respectively. Reactivated rye grain culture of M. albus was used to fumigate dormant teliospores in dry Petri dishes and physiologically active teliospores on water agar for up to 5 days at 22 degrees C...
February 2009: Canadian Journal of Microbiology
J D Procunier, M A Gray, N K Howes, R E Knox, A M Bernier
Screening for loose smut resistance in wheat is difficult. Selecting lines with DNA markers linked to loose smut resistance would be more reliable and less costly. Molecular markers linked to a race T10 loose smut resistance gene were identified using a F6 single seed descent segregating population. A RAPD marker and a RFLP marker were located on opposite flanks of the resistance gene and were shown to be loosely linked. The RAPD marker was converted to a user friendly polymorphic SCAR marker that represented a single genetically defined locus in hexaploid wheat...
April 1997: Genome Génome / Conseil National de Recherches Canada
Thomas Schlaich, Bartosz Urbaniak, Marie-Laure Plissonnier, Nicole Malgras, Christof Sautter
The viral gene for the killer protein 4 (KP4) has been explored for its antifungal effect in genetically modified wheat to defeat specifically the seed-transmitted smut and bunt diseases. In vitro both important seed-transmitted diseases of wheat, loose smut (Ustilago tritici) and stinking smut (Tilletia caries), are susceptible to KP4, whereas all other organisms tested so far proved to be not susceptible to KP4. For studies in planta we used stinking smut as a model fungus. In greenhouse experiments, two KP4-transgenic wheat lines showed up to 30% lower symptom development as compared to the nontransgenic control...
2007: Advances in Biochemical Engineering/biotechnology
No abstract text is available yet for this article.
October 1950: Current Science
S P Martynov, T V Dobrotvorskaia
Comparative genealogical analysis was conducted for loose smut-resistant and susceptible common wheat cultivars of three regions: Russia, Canada, and India. Pedigree analysis of differentiator varieties revealed several sources of the Ut1, Ut3, and Ut4 genes. Tracking resistance transmission in extended pedigrees allowed identification of resistance donors, sources, and, in some cases, putative genes in Russian, Canadian, and Indian cultivars. A contingency table was constructed with the data on resistance or susceptibility of 839 common and durum wheat cultivars and demonstrated a significant association for resistance to two, loose and stinking, types of smut...
July 2003: Genetika
D Rubiales, R E Niks, T L Carver, J Ballesteros, A Martín
Hordeum chilense is a South American wild barley with high potential for cereal breeding given its high crossability with other members of the Triticeae. In the present paper we consider the resistance of H. chilense to several fungal diseases and the prospects for its transference to cultivated cereals. All H. chilense accessions studied are resistant to the barley, wheat and rye brown rusts, the powdery mildews of wheat, barley, rye and oat, to Septoria leaf blotch, common bunt and to loose smuts, which suggests that H...
2001: Hereditas
I Ujevié, J Krátká
No abstract text is available yet for this article.
1974: Zentralblatt Für Bakteriologie, Parasitenkunde, Infektionskrankheiten und Hygiene. Zweite Naturwissenschaftliche Abt.: Allgemeine, Landwirtschaftliche und Technische Mikrobiologie
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