Genetics, Genomics and Bioengineering of Improved Legume Crops

A special issue of Agriculture (ISSN 2077-0472). This special issue belongs to the section "Crop Genetics, Genomics and Breeding".

Deadline for manuscript submissions: closed (10 March 2023) | Viewed by 2170

Special Issue Editor


E-Mail Website
Guest Editor
Department of Biological Sciences, University of Maryland, Baltimore County (UMBC), Baltimore, MD, USA
Interests: genomics; transcription; recombinant protein expression; molecular cloning; recombinant proteins production and purification; gene expression; sequencing; transcriptional regulation; transcriptomics; regulation of gene expression

Special Issue Information

Dear Colleagues,

As humanity expands, climate change and reduction in productive habitats will force more people to live in increasingly extreme environments and food deserts, straining the world’s ability to produce and deliver reliable food supplies. Legumes are hardy plants that can grow in nitrogen-poor soils under harsh environmental conditions, where they provide good sources of food, fiber, and biomass. This Special Issue will address current progress in using state-of-the-art genomic and genetic approaches to:

  • Surveying the fitness, geographic distribution, and genomic and phenotypic diversity of wild and domesticated legumes.
  • Identifying adaptive phenotypes and genotypes that facilitated the spread of wild species into harsh environments.
  • Evaluating the interactions of legumes with non-legume plants, directly and through the soil microbiome.
  • Improving responses to biotic stresses caused by common pathogens and pests.
  • Enhancing tolerance to abiotic stresses, such as drought, heat, soil salinity, and cold.
  • Improving the quantity, nutritional quality, and post-harvest properties of legumes cultivated for forage and seed.
  • Improving plant nutrition via biofortification and the genetic engineering of root symbioses with rhizobia and arbuscular mycorrhizal fungi.
  • Manipulating plant growth and development for fitness gains and to facilitate crop cultivation and harvesting.
  • Developing new tools for the genomic analysis and bioengineering of common and less-traditional legume crops.

Dr. Mauricio M. Bustos
Guest Editor

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.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Agriculture is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 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

  • legumes
  • genomics
  • genetics
  • phenotypes
  • biofortification
  • microbiome
  • symbiosis
  • nitrogen-fixation
  • biotic stress
  • plant defense
  • abiotic stress
  • drought resistance
  • plant nutrition
  • human nutrition
  • forage crops
  • seed crops

Published Papers (1 paper)

Order results
Result details
Select all
Export citation of selected articles as:

Research

15 pages, 4210 KiB  
Article
Comparative Transcriptome Analysis Reveals the Mechanisms Underlying Differential Seed Vigor in Two Contrasting Peanut Genotypes
by Shengyu Li, Jiali Zeng, Zhao Zheng, Qi Zhou, Shaona Chen, Yixiong Zheng, Xiaorong Wan and Bin Yang
Agriculture 2022, 12(9), 1355; https://doi.org/10.3390/agriculture12091355 - 1 Sep 2022
Cited by 3 | Viewed by 1687
Abstract
Seed vigor is an important agronomic trait, and wide variation exists among peanut accessions. However, the detailed regulatory mechanisms underlying differences in seed vigor between varieties are not known in peanut yet. Here, we performed a comparative transcriptome analysis of germinating seeds in [...] Read more.
Seed vigor is an important agronomic trait, and wide variation exists among peanut accessions. However, the detailed regulatory mechanisms underlying differences in seed vigor between varieties are not known in peanut yet. Here, we performed a comparative transcriptome analysis of germinating seeds in two contrasting peanut accessions, namely A86 (high-vigor variety) and A279 (low-vigor variety). A total of 583 and 860 differentially expressed genes (DEGs) were identified at two imbibition stages between A86 and A279, respectively. Pathway enrichment tests highlighted the cell wall remodeling-, hormone signaling-, transcriptional regulation-, and oxidative stress-related DEGs, which may explain to a certain extent the difference in seed vigor between the two cultivars. Among them, the largest number of cell wall remodeling-related DEGs were extensions followed by cellulose synthases, fasciclin-like arabinogalactan proteins, polygalacturonases, expansins, and pectinesterases and the hormone signaling-related DEGs belonged mainly to the auxin and ethylene signaling pathway. The majority of transcriptional regulation-related DEGs were MYB, FAR1, and bHLH transcription factors, and the oxidative stress-related DEGs were mainly peroxidases. Further physiological analyses indicated that differences in seed vigor between A86 and A279 may be associated with differences in the ROS-scavenging abilities mediated by peroxidases. Moreover, we identified 16 DEGs homologous to known Arabidopsis regulators of seed dormancy and germination, suggesting that these DEGs would play similar functional roles during peanut seed germination. Our results not only provide important insights into the difference in seed vigor between varieties, but offer candidate genes that are worth investigating in future studies. Full article
(This article belongs to the Special Issue Genetics, Genomics and Bioengineering of Improved Legume Crops)
Show Figures

Figure 1

Back to TopTop