Genomic Approaches to Understand Crop Response to Biotic and Abiotic Stress

A special issue of Agriculture (ISSN 2077-0472). This special issue belongs to the section "Genotype Evaluation and Breeding".

Deadline for manuscript submissions: closed (22 January 2024) | Viewed by 4190

Special Issue Editors


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Guest Editor
Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av. Da República, 2780-157 Oeiras, Portugal
Interests: plant-pathogen interactions; genomics; QTL mapping; transcriptomics; Legumes; woody species; breeding for resistance to pathogens

E-Mail Website
Guest Editor
Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av. da República, 2780-157 Oeiras, Portugal
Interests: biotic-abiotic stresses interaction; multi-stress resistance; drought tolerance; disease resistance; nutritional quality; molecular breeding; genome-wide association studies; legumes

Special Issue Information

Dear Colleagues,

Worldwide, concerns among consumers and policymakers in regard to agriculture sustainability and environmental security are rising. Increasing productivity has been highlighted as a way to meet the growing global demand for food. A sustainable increase in crop productivity will require major improvements in the efficiency of resource use, environmental protection, and systems resilience. Environmental conditions are constantly challenging plant adaptation and survival. Climate change has increased the frequency of heatwaves, drought, and floods, and has created opportunities for the quicker spread of plant pests and diseases. The development and identification of climate-resilient and high-yield crop varieties with enhanced tolerance to biotic and abiotic stresses is crucial for more sustainable agriculture. The progress of genomic technologies and tools has enabled a better understanding of the genetic bases and biochemical mechanisms behind plant responses to biotic and abiotic stresses. These pieces of knowledge and tools will accelerate crop breeding programs to enhance their yields as well as resilience against such stresses. 

This Special Issue focuses on genomic approaches and tools that use advanced technology to study plant responses to biotic and abiotic stress conditions. We welcome original contributions on the identification of genomic regions, genes, and haplotypes associated with plant stress resistance, the development of genomic tools, and the deployment of genomic-assisted breeding approaches for the introgression of resistant genes in breeding programs.

Dr. Carmen Santos
Dr. Susana T. Leitão
Guest Editors

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Keywords

  • plant disease and pest resistance plant abiotic stress tolerance
  • quantitative trait loci-QTL/gene mapping
  • genome wide association studies-GWAS
  • molecular marker development
  • marker-assisted selection
  • genomic breeding

Published Papers (2 papers)

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Review

21 pages, 400 KiB  
Review
The Exceptionally Large Genomes of the Fabeae Tribe: Comparative Genomics and Applications in Abiotic and Biotic Stress Studies
by Carmen Santos and Susana Trindade Leitão
Agriculture 2024, 14(1), 77; https://doi.org/10.3390/agriculture14010077 - 30 Dec 2023
Viewed by 976
Abstract
The Fabeae tribe comprises five legume genera, which include some of the most ancient and important crops, like peas, lentils, and faba beans. Biotic and environmental stresses are major threats to the stable and high productivity of Fabeae crops. The use of omics [...] Read more.
The Fabeae tribe comprises five legume genera, which include some of the most ancient and important crops, like peas, lentils, and faba beans. Biotic and environmental stresses are major threats to the stable and high productivity of Fabeae crops. The use of omics resources can provide breeders with the tools needed to develop new crop varieties in a more efficient and sustainable way. However, the genomic efforts on Fabeae crops have lagged behind compared to other legume species, mainly due to their large genome size and repeat content. The first annotated chromosome-level reference genome assembly in Fabeae was published for pea (Pisum sativum cv. Caméor) in 2019. Since then, many efforts have been made to sequence the genome of other species from this tribe. Currently, 17 genomes of Fabeae species are available for the scientific community; five of them are at the chromosome level. Fundamental knowledge and molecular tools for breeding have been boosted on the legume resistance/tolerance against biotic and abiotic stresses by the availability of some of these recent reference genomes, especially the pea cv. Caméor genome. This review provides a comparison of the Fabeae tribe genomes available and an overview of recent accomplishments in their application in abiotic and biotic stress research. Full article
23 pages, 983 KiB  
Review
Breeding for Biotic Stress Resistance in Pea
by Diego Rubiales, Eleonora Barilli and Nicolas Rispail
Agriculture 2023, 13(9), 1825; https://doi.org/10.3390/agriculture13091825 - 18 Sep 2023
Cited by 3 | Viewed by 2616
Abstract
Pea (Pisum sativum) stands out as one of the most significant and productive cool-season pulse crops cultivated worldwide. Dealing with biotic stresses remains a critical challenge in fully harnessing pea’s potential productivity. As such, dedicated research and developmental efforts are necessary [...] Read more.
Pea (Pisum sativum) stands out as one of the most significant and productive cool-season pulse crops cultivated worldwide. Dealing with biotic stresses remains a critical challenge in fully harnessing pea’s potential productivity. As such, dedicated research and developmental efforts are necessary to make use of omic resources and advanced breeding techniques. These approaches are crucial in facilitating the rapid and timely development of high-yielding varieties that can tolerate and resist multiple stresses. The availability of advanced genomic tools, such as comprehensive genetic maps and reliable DNA markers, holds immense promise for integrating resistance genes from diverse sources. This integration helps accelerate genetic gains in pea crops. This review provides an overview of recent accomplishments in the genetic and genomic resource development of peas. It also covers the inheritance of genes controlling various biotic stress responses, genes that control pathogenesis in disease-causing organisms, the mapping of genes/QTLs, as well as transcriptomic and proteomic advancements. By combining conventional and modern omics-enabled breeding strategies, genetic gains can be significantly enhanced. Full article
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