00Ar134-1, a spring wheat line of intergeneric origin

Abstract

00Ar134-1 is an intergeneric spring wheat line derived from Elymus repens (quack grass). The line was developed as a potentially new source of resistance to Fusarium head blight (FHB) in wheat. 00Ar134-1 is resistant to Fusarium head blight as well as leaf rust, stem rust, and common bunt. Although lower yielding and taller than commercial cultivars, this line is of similar maturity and kernel weight. 00Ar134-1 can potentially be used as a resistant parent for improving Fusarium head blight resistance in common wheat.Key words: Elymus repens, intergeneric lines, 00Ar134-1, Fusarium head blight, wheat, Scab.Résumé : 00Ar134-1 est une lignée de blé de printemps intergénérique issue d'un croisement avec le chiendent (Elymus repens). Cette lignée a été développée afin d'offrir une nouvelle source de résistance éventuelle contre la brûlure de l'épi causée par Fusarium. 00Ar134-1 résiste à la brûlure de l'épi attribuable à Fusarium ainsi qu'à la rouille des feuilles, à la rouille de la tige et à la carie. Bien que son rendement et sa taille soient inférieures à celles des cultivars commerciaux, elle parvient à maturité en même temps et ses grains ont un poids similaire. 00Ar134-1 pourrait servir de parent résistant en vue de rehausser la résistance à la brûlure de l'épi causée par Fusarium chez les variétés de blé courantes. [Traduit par la Rédaction] Mots-clés : Elymus repens, lignée intergénérique, 00Ar134-1, brûlure de l'épie causée par Fusarium, blé, gale.

Showcasing the application of synchrotron‐based X‐ray computed tomography in host–pathogen interactions: The role of wheat rachilla and rachis nodes in Type‐II resistance to Fusarium graminearum

“…The spore concentration of 10 5 spores/ml accompanied by inoculation of four spikelets (the standard procedure is to inoculate one or two) overwhelmed the effects of these QTLs, which may have been why the NILs carrying one or all three QTLs expressed the same phenotype, although all the NILs were better than the recurrent parent (Figure ). Genotype 00Ar134‐1 was reported as moderately resistant for field reaction to FHB in multiple environments, and our results from indoor phenotyping agree with Brar and Hucl ().…”

“…The presence of genes was confirmed using molecular markers: umn10 , gwm493 , and gwm533 ; functional markers for the pore‐forming toxin (PFT) protein in Fhb1 ; and single nucleotide polymorphisms markers from Zhao et al () in Fhb1 region: wmc105 , wmc152 , wmc397 , wmc398 , and gwm644 flanking Fhb2 and wmc705 , barc117 , gwm293 , gwm304 , gwm415 , barc180 , barc186 , and Ra_c23129_348 (single nucleotide polymorphism marker) flanking Fhb5 (Buerstmayr et al, ; McCartney et al, ; Rawat et al, ; Zhao et al, ). The line 00Ar134‐1 is derived from a cross of wheat and Elymus repens L. (wheatgrass) and was included as it has a good level of resistance to FHB (Brar & Hucl, ). Genes Fhb1 and Fhb2 govern Type‐II resistance to FHB, whereas Fhb5 mainly governs Type‐I resistance (resistance to initial infection) plus some Type‐II resistance (Buerstamyr et al, ).…”

“…Fhb5 (Buerstmayr et al, 2017;McCartney et al, 2004;Rawat et al, 2016;Zhao et al, 2018). The line 00Ar134-1 is derived from a cross of wheat and Elymus repens L. (wheatgrass) and was included as it has a good level of resistance to FHB (Brar & Hucl, 2017). Genes Fhb1 and Fhb2 govern Type-II resistance to FHB, whereas Fhb5 mainly governs Type-I resistance (resistance to initial infection) plus some Type-II resistance (Buerstamyr et al, 2009).…”

Emerging Methods for Biological Control of Barley Diseases Including the Role of Endophytes

“…Some studies isolated endophytes from related taxonomic groups of a crop species and tested the eff ect in the crop (Maciá-Vicente et al , 2008 ). CWRs are valuable resources in crop breeding programmes and have been used to transfer disease resistance (Zeng et al , 2013 ;Brar and Hucl, 2017 ;Fedak et al , 2017 ). Likewise, CWRs can be a unique source of potential biocontrol agents (Maciá-Vicente et al 2008 ;Murphy et al 2015b ).…”