NPR1 has been found to be a key transcriptional regulator in some plant defence responses. There are nine We used bioinformatics and reverse genetics approaches to study the expression and function of each We found six members of We discovered a new mode of NPR1 action in wheat at the
The wheat wild relative
- NSF-PAR ID:
- 10381712
- Author(s) / Creator(s):
- ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; more »
- Publisher / Repository:
- Nature Publishing Group
- Date Published:
- Journal Name:
- Nature Communications
- Volume:
- 13
- Issue:
- 1
- ISSN:
- 2041-1723
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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Summary NPR1 homologues (TaNPR1 ) in wheat, but little research has been done to understand the function of thoseNPR1 ‐like genes in the wheat defence response against stem rust (Puccinia graminis f. sp.tritici ) pathogens.TaNPR1 .TaNPR1 located on homoeologous group 3 chromosomes (designated asTaG3NPR1 ) and three on homoeologous group 7 chromosomes (designated asTaG7NPR1 ). The group 3 NPR1 proteins regulate transcription of SA‐responsivePR genes. Downregulation of all theTaNPR1 homologues via virus‐induced gene co‐silencing resulted in enhanced resistance to stem rust. More specifically downregulatingTaG7NPR1 homeologues orTa7ANPR1 expression resulted in stem rust resistance phenotype. By contrast, knocking downTaG3NPR1 alone did not show visible phenotypic changes in response to the rust pathogen. Knocking outTa7ANPR1 enhanced resistance to stem rust. TheTa7ANPR1 locus is alternatively spliced under pathogen inoculated conditions.Ta7ANPR1 locus through an NB‐ARC–NPR1 fusion protein negatively regulating the defence to stem rust infection. -
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Abstract Hessian fly (HF;
Mayetiola destructor Say) causes severe damage to wheat (Triticum aestivum L.) worldwide. Several resistance genes have been identified in wheat and wild relatives; however, HF populations are under strong selection pressure and evolve rapidly to overcome resistance. To ensure the availability of resistance sources, HF‐resistant germplasm KS18WGRC65 (TA5110, Reg. no. GP‐1042, PI 688251) was developed by Wheat Genetics Resource Center at Kansas State University as a breeding stock that carries resistance geneH26 fromAegilops tauschii Coss. KS18WGRC65 is a cytogenetically stable, homozygous, BC3F3:6line derived from the cross betweenAe. tauschii accession KU2147 and hard red winter wheat recurrent parent ‘Overley’. KS18WGRC65 exhibited no penalty for yield or other agronomic characters, making it a suitable source of HF resistance for wheat breeding. -
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Abstract Background The genetic information contained in the genome of an organism is organized in genes and regulatory elements that control gene expression. The genomes of multiple plants species have already been sequenced and the gene repertory have been annotated, however,
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Summary Prolamin and resistance gene families are important in wheat food use and in defense against pathogen attacks, respectively. To better understand the evolution of these multi‐gene families, the
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