Molecular Breeding for Plant Disease Resistance

A special issue of Plants (ISSN 2223-7747). This special issue belongs to the section "Plant Protection and Biotic Interactions".

Deadline for manuscript submissions: closed (30 April 2024) | Viewed by 1565

Special Issue Editors


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Guest Editor
Dipartimento di Biotecnologie, Università di Verona, Strada le Grazie 15, 37134 Verona, Italy
Interests: plant genetics; plant breeding; biotechnology; bioinformatic; stress resistance; gene-environment interaction

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Guest Editor
Dipartimento di Biotecnologie, Università di Verona, Strada le Grazie 15, 37134 Verona, Italy
Interests: plant genetics; plant breeding; stress resistance traits; phenology traits

Special Issue Information

Dear Colleagues,

Plants in their natural environment must inevitably coexist with other organisms. This coexistence is not always “peaceful” and they often find themselves attacked by a wide variety of pathogens, which can also get the best of them. Marker Assisted Selection (MAS) and molecular breeding strategies are helping the breeder considerably in developing resistant genotypes and represent a winning strategy to speed up the breeding programs. Furthermore, advancements in sequencing techniques and genomics, high throughput genotyping and advanced statistical approaches strongly support the development of new breeding strategies in disease resistance.

This special issue will collect scientific papers concerning the whole process of identification and use of markers and genetic strategies for breeding disease-resistant plants. Therefore, we will include articles mainly focused on the following subjects:

  • discovery and exploitation of new genetic resources for disease resistance (including those from wild relatives);
  • marker assisted selection and innovative molecular breeding tools and approaches;
  • statistical methods in molecular breeding for disease resistance;
  • strategies and molecular techniques for the development of new or improved markers for resistance;
  • newly identified molecular markers/genes/metabolites linked to disease resistance (monogenic or polygenic resistance);
  • germplasm screening for selection of resistant genotypes.

Dr. Chiara Broccanello
Dr. Diana Bellin
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

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Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • molecular marker
  • plant breeding
  • breeding approaches
  • stress resistance
  • genetic diversity new biotechnological tools

Published Papers (1 paper)

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Research

15 pages, 2142 KiB  
Article
Genetic Mapping of Tolerance to Bacterial Stem Blight Caused by Pseudomonas syringae pv. syringae in Alfalfa (Medicago sativa L.)
by Yeidymar Sierra Moya, Cesar Medina, Bianca Herrera, Fabian Chamba, Long-Xi Yu, Zhanyou Xu and Deborah A. Samac
Plants 2024, 13(1), 110; https://doi.org/10.3390/plants13010110 - 29 Dec 2023
Viewed by 927
Abstract
The bacterial stem blight of alfalfa (Medicago sativa L.), first reported in the United States in 1904, has emerged recently as a serious disease problem in the western states. The causal agent, Pseudomonas syringae pv. syringae, promotes frost damage and disease that [...] Read more.
The bacterial stem blight of alfalfa (Medicago sativa L.), first reported in the United States in 1904, has emerged recently as a serious disease problem in the western states. The causal agent, Pseudomonas syringae pv. syringae, promotes frost damage and disease that can reduce first harvest yields by 50%. Resistant cultivars and an understanding of host-pathogen interactions are lacking in this pathosystem. With the goal of identifying DNA markers associated with disease resistance, we developed biparental F1 mapping populations using plants from the cultivar ZG9830. Leaflets of plants in the mapping populations were inoculated with a bacterial suspension using a needleless syringe and scored for disease symptoms. Bacterial populations were measured by culture plating and using a quantitative PCR assay. Surprisingly, leaflets with few to no symptoms had bacterial loads similar to leaflets with severe disease symptoms, indicating that plants without symptoms were tolerant to the bacterium. Genotyping-by-sequencing identified 11 significant SNP markers associated with the tolerance phenotype. This is the first study to identify DNA markers associated with tolerance to P. syringae. These results provide insight into host responses and provide markers that can be used in alfalfa breeding programs to develop improved cultivars to manage the bacterial stem blight of alfalfa. Full article
(This article belongs to the Special Issue Molecular Breeding for Plant Disease Resistance)
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