Disease Resistance Breeding of Field Crops

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 1340

Special Issue Editors


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Guest Editor
Center for Informational Biology, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 610054, China
Interests: plant molecular cell biology; plant chromosome; wheat genetics; wheat breeding; genomic evolution; chromosome engineering
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Instituto Nacional de Tecnología Agropecuaria/Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina
Interests: plant molecular biology; host-pathogen interaction; sunflower genetics and genomics; sunflower disease resistance; sunflower senescence

Special Issue Information

Dear Colleagues,

Resistance breeding is an important strategy for reducing crop losses caused by a number of different pathogens including fungi, bacteria, and viruses. Traditional crop breeding methods have been quite successful in improving disease resistance for decades based on the identification and utilization of natural and induced germplasms for multiple disease resistances.

The development and precise identification of new crop germplasms with diverse disease-resistant genes from field crops and their wild relatives using wide hybridization remain to be effective to expand genetic resources. The advanced techniques of cytogenetic, functional genomics, and genome-based molecular marker systems with low costs and high-throughput data processing along with the availability of different mapping populations and bioinformatics tools are benefiting crop breeding strategies that utilize diverse forms of resistance. In addition, techniques for the induction of new variability through mutagenesis and genome/gene editing are emerging as significant strategies for crop improvement. Pyramiding genes for achieving broad-spectrum and durable disease-resistant with high yield and novel agronomic traits is a promising avenue for the present and future global crop breeding and production.

Prof. Dr. Zujun Yang
Dr. Ruth A. Heinz
Guest Editors

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Keywords

  • disease resistance
  • molecular breeding
  • germplasm enhancement
  • chromosome manipulation
  • genetic mapping
  • functional genomics
  • mutagenesis
  • gene editing

Published Papers (1 paper)

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Research

16 pages, 13524 KiB  
Article
Development of a Set of Wheat-Rye Derivative Lines from Hexaploid Triticale with Complex Chromosomal Rearrangements to Improve Disease Resistance, Agronomic and Quality Traits of Wheat
by Tingting Wang, Guangrong Li, Chengzhi Jiang, Yuwei Zhou, Ennian Yang, Jianbo Li, Peng Zhang, Ian Dundas and Zujun Yang
Plants 2023, 12(22), 3885; https://doi.org/10.3390/plants12223885 - 17 Nov 2023
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Abstract
An elite hexaploid triticale Yukuri from Australia was used as a bridge for transferring valuable genes from Secale cereale L. into common wheat for enriching the genetic variability of cultivated wheat. Non-denaturing-fluorescence in situ hybridization (ND-FISH) identified that Yukuri was a secondary triticale [...] Read more.
An elite hexaploid triticale Yukuri from Australia was used as a bridge for transferring valuable genes from Secale cereale L. into common wheat for enriching the genetic variability of cultivated wheat. Non-denaturing-fluorescence in situ hybridization (ND-FISH) identified that Yukuri was a secondary triticale with a complete set of rye chromosomes and a 6D(6A) substitution. Seed protein electrophoresis showed that Yukuri had a unique composition of glutenin subunits. A set of Yukuri-derived wheat-rye introgression lines were created from a Yukuri x wheat population, and all lines were identified by ND-FISH with multiple probes and validated by diagnostic molecular marker analysis. A total of 59 wheat-rye introgression lines including modified chromosome structural variations of wheat, and new complex recombinant chromosomes of rye were detected through ND-FISH and Oligo-FISH painting based on oligonucleotide pools derived from wheat-barley genome collinear regions. Wheat lines carrying the 1R chromosome from Yukuri displayed resistance to both stripe rust and powdery mildew, while the lines carrying the 3RL and 7RL chromosome arms showed stripe rust resistance. The chromosome 1R-derived lines were found to exhibit a significant effect on most of the dough-related parameters, and chromosome 5R was clearly associated with increased grain weight. The development of the wheat-rye cytogenetic stocks carrying disease resistances and superior agronomic traits, as well as the molecular markers and FISH probes will promote the introgression of abundant variation from rye into wheat improvement programs. Full article
(This article belongs to the Special Issue Disease Resistance Breeding of Field Crops)
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