2020
DOI: 10.1073/pnas.2009418117
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Abstract: Stem solidness is an important agronomic trait of durum (Triticum turgidum L. var. durum) and bread (Triticum aestivum L.) wheat that provides resistance to the wheat stem sawfly. This dominant trait is conferred by the SSt1 locus on chromosome 3B. However, the molecular identity and mechanisms underpinning stem solidness have not been identified. Here, we demonstrate that copy number variation of TdDof, a gene encoding a putative DNA binding with one finger protein, controls the stem solidness trait in wheat.… Show more

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Cited by 20 publications
(44 citation statements)
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“…In this study, we focused on two crucial wheat pathogens, Wheat Stem Sawfly (WSS; Cephus cinctus Norton) and Orange Wheat Blossom Midge (OWBM, Sitodiplosis mosellana), and explored the content and organization of coding and non-coding features on multiple resistance loci across cereal genomes. The focus of this study is not the causal or candidate genes, which have recently been firmly established for two of the loci already [17,23], but rather to provide a comparative overview of Each number indicates the number of miRNA families identified in each cereal species that are shared (or not) with the others. Three miRNA families were shown to be shared among all analyzed species, whereas eight miRNAs were conserved in wheat, barley, and rye.…”
Section: Discussionmentioning
confidence: 99%
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“…In this study, we focused on two crucial wheat pathogens, Wheat Stem Sawfly (WSS; Cephus cinctus Norton) and Orange Wheat Blossom Midge (OWBM, Sitodiplosis mosellana), and explored the content and organization of coding and non-coding features on multiple resistance loci across cereal genomes. The focus of this study is not the causal or candidate genes, which have recently been firmly established for two of the loci already [17,23], but rather to provide a comparative overview of Each number indicates the number of miRNA families identified in each cereal species that are shared (or not) with the others. Three miRNA families were shown to be shared among all analyzed species, whereas eight miRNAs were conserved in wheat, barley, and rye.…”
Section: Discussionmentioning
confidence: 99%
“…Stem solidness trait has been utilized as the primary defense strategy against WSS in wheat. The causal gene, TdDof, of the major QTL on chromosome 3BL controlling stem solidness was recently identified and characterized [17]. When this QTL and homologous regions in related Poaceae species were compared, a high level of synteny was observed (Figure 1).…”
Section: Discussionmentioning
confidence: 99%
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“…The synergistic two-way interaction between SSt1 and other secondary QTLs on the chromosome resulted in a higher rate of solid stems than when SSt1 was used alone 32 . The solidity of the stem was complementary to many factors 33 , and the additive effect of the SSt1 resistance allele in durum wheat produced stem solidness three times that of common wheat, with an additive effect 32,33 . TRITD3Bv1G280530 in solid-stemmed and hollow-stemmed durum wheat differed in copy number and was most likely to be a candidate gene in the SSt1 interval 34 .…”
Section: Introductionmentioning
confidence: 99%