Mining and Mapping of Disease-Resistant Genes in Wheat

A special issue of Plants (ISSN 2223-7747). This special issue belongs to the section "Plant Genetics, Genomics and Biotechnology".

Deadline for manuscript submissions: 30 June 2024 | Viewed by 879

Special Issue Editor


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Guest Editor
State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, China
Interests: wheat; disease-resistant; gene

Special Issue Information

Dear Colleagues,

Multiple fungus diseases greatly impact the product of wheat. It is the most cost-effective and environmentally friendly method to develop and cultivate disease-resistant cultivars for combating wheat diseases. Recent progress in wheat genomics and molecular genetics technologies has enabled us to mine and map disease-resistant genes for molecular breeding. With the emergence of a variety of powerful phenotype and genotype techniques, our ability to mine and map disease-resistant genes has substantially increased. However, the accurate identification and precise mapping of new disease-resistant genes from both wheat and its wild relatives remain relatively difficult. In addition, more marker development and detection strategies with low costs and high-throughput need to be explored, especially for the broad-spectrum and durable disease-resistant genes with high potential in future applications.

This Special Issue will cover the latest developments and applications of wheat phenotyping, genome sequencing, GWAS, QTL mapping, map-based cloning and chromosome engineering techniques in the mining and mapping of disease-resistant genes in common wheat and its wild relatives.

Prof. Dr. Aizhong Cao
Guest Editor

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Keywords

  • wheat
  • wild species
  • fungus diseases
  • disease-resistant gene mining
  • disease-resistant gene mapping
  • disease-resistant gene utilization

Published Papers (1 paper)

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Research

14 pages, 4055 KiB  
Article
Genome-Wide Association Studies on Chinese Wheat Cultivars Reveal a Novel Fusarium Crown Rot Resistance Quantitative Trait Locus on Chromosome 3BL
by Chuyuan Wang, Manli Sun, Peipei Zhang, Xiaopeng Ren, Shuqing Zhao, Mengyu Li, Zhuang Ren, Meng Yuan, Linfei Ma, Zihan Liu, Kaixuan Wang, Feng Chen, Zaifeng Li and Xiaodong Wang
Plants 2024, 13(6), 856; https://doi.org/10.3390/plants13060856 - 15 Mar 2024
Viewed by 692
Abstract
Fusarium crown rot (FCR), primarily caused by Fusarium pseudograminearum, has emerged as a new threat to wheat production and quality in North China. Genetic enhancement of wheat resistance to FCR remains the most effective approach for disease control. In this study, we [...] Read more.
Fusarium crown rot (FCR), primarily caused by Fusarium pseudograminearum, has emerged as a new threat to wheat production and quality in North China. Genetic enhancement of wheat resistance to FCR remains the most effective approach for disease control. In this study, we phenotyped 435 Chinese wheat cultivars through FCR inoculation at the seedling stage in a greenhouse. Our findings revealed that only approximately 10.8% of the wheat germplasms displayed moderate or high resistance to FCR. A genome-wide association study (GWAS) using high-density 660K SNP led to the discovery of a novel quantitative trait locus on the long arm of chromosome 3B, designated as Qfcr.hebau-3BL. A total of 12 significantly associated SNPs were closely clustered within a 1.05 Mb physical interval. SNP-based molecular markers were developed to facilitate the practical application of Qfcr.hebau-3BL. Among the five candidate FCR resistance genes within the Qfcr.hebau-3BL, we focused on TraesCS3B02G307700, which encodes a protein kinase, due to its expression pattern. Functional validation revealed two transcripts, TaSTK1.1 and TaSTK1.2, with opposing roles in plant resistance to fungal disease. These findings provide insights into the genetic basis of FCR resistance in wheat and offer valuable resources for breeding resistant varieties. Full article
(This article belongs to the Special Issue Mining and Mapping of Disease-Resistant Genes in Wheat)
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