New wheat-rye 5DS-4RS·4RL and 4RS-5DS·5DL translocation lines with powdery mildew resistance (original) (raw)

“…striiformis

Puccinia graminis f. sp. tritici Blumeria graminis ND4BL.4RL + 7AS.4RSGerman white rye; WR41-1 [86] Pm20 6BS.6RLProlific rye; WGRC28 [65]ND5DS-4RS.4RLKustro rye and MK25 triticale [87]ND6RLKustro rye and triticale MK25 [87]ND6RGerman white rye; WR49-1 [88] Schizaphis graminum Diurarphis noxia Rhopalosiphum padi Sitobion avenae Mayetiola destructor H25 4BS.4BL-6RLBalbo rye; 88HF16 wheat [65, 89] Aceria tosichell Heterodera avenae CreR 6DS.6RLT-701 triticale derives [90] Heterodera filipjevi ND(6D) 6R[91] a Gene designations according to McIntosh et al [26] unless: b additional with temporary designation or ND no designation

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Section: Rye As a Source Of Resistance To Biotic Stresses In Wheatmentioning

“…To date, approximately 42 loci with more than 70 alleles conferring resistance to powdery mildew genes [ 66 ] and more than 70 loci for leaf rust resistance genes [ 67 ] have been reported. Unfortunately, many of these resistance genes usually become ineffective when new pathogen variants emerge due to co-evolution of the host and pathogen [ 68 ]. Hence, there is an urgent need to identify new and effective sources of resistance for wheat improvement.…”

Section: Discussionmentioning

“…Some of the MK seeds were irradiated with fast neutrons at the Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, China. The irradiated MK seeds were used as recipients to cross with common wheat T. aestivum L. Chuannong 27 (CN27), and line 12FT2115 was selected from the progeny of this cross combination ( Fu et al, 2014 ). Some of the selfed progeny (seeds) of lines 12FT2115 and MTA4RL Ku were irradiated with 60 Co-γ rays at the Biotechnology and Nuclear Technology Research Institute, Sichuan Academy of Agricultural Sciences, China.…”

Section: Methodsmentioning

“…New powdery mildew resistance gene(s), which differ from previously reported rye genes, were located on 4R chromosome of rye cultivar German White ( An et al, 2013 ). It has been reported that the 4RL arm of rye Kustro also possesses powdery mildew resistance gene(s) ( Fu et al, 2014 ). Additionally, the 4R chromosome of rye Imperial carries at least two genetic factors that have positive effects on wheat pollination traits ( Nguyen et al, 2015 ).…”

Section: Introductionmentioning