Genetics and Breeding of Field Crops in the 21st Century—2nd Edition

A special issue of Agronomy (ISSN 2073-4395). This special issue belongs to the section "Crop Breeding and Genetics".

Deadline for manuscript submissions: 31 July 2026 | Viewed by 1094

Special Issue Editors


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Guest Editor
School of Agricultural Sciences, University of Western Macedonia, 9 Iraklias Str., 54636 Thessaloniki, Greece
Interests: breeding field crops; doubled haploid production; cytogenetics
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Guest Editor
Laboratory of Vegetable Crop Science, Department of Agriculture, International Hellenic University, Sindos, 57400 Thessaloniki, Greece
Interests: climate change; abiotic stress; vegetable crop; nutritional value; plant improvement; horticulture research; sustainable agriculture

Special Issue Information

Dear Colleagues,

Genetics has always been the main tool for understanding and evaluating crop behavior. This facilitated the production of new cultivars with better-yielding efficiency, contributing to developing plant breeding as an important science. Thus, breeding field crops have proved to be essential to ensure food and feed supply in adequate quantities to meet human and livestock demands. This procedure, although sufficiently effective, faces serious risks due to climate change, the emergence of new and more aggressive biotic factors and wrong human actions resulting in marginal environments.

The aim and scope of this upcoming Special Issue is to bring together old and new attempts that contribute to solving the aforementioned risks. Classical breeding can use the current developments of molecular breeding, doubled haploidy and even speed breeding in order to accomplish this goal. 

This Special Issue welcomes review, research and short communication papers that can contribute to improvement in plant breeding.

Dr. Ioannis N. Xynias
Dr. Ilias D. Avdikos
Guest Editors

Manuscript Submission Information

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Keywords

  • yield
  • quality
  • food supply
  • climate change
  • sustainable agriculture

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Published Papers (1 paper)

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Research

26 pages, 4762 KB  
Article
Morphology, Heterosis, and Fertility of Novel CMS-Based Solanum melongena × S. aethiopicum Hybrids
by Konstantinos Krommydas, Athanasios Mavromatis, Fotios Bletsos and Demetrios Roupakias
Agronomy 2026, 16(3), 306; https://doi.org/10.3390/agronomy16030306 - 26 Jan 2026
Cited by 1 | Viewed by 633
Abstract
Although cytoplasmic male sterility (CMS) is well established in eggplant, CMS-based interspecific hybrids with allied species have not yet been reported or studied. In this study, five previously developed CMS-based interspecific F1 hybrids between eggplant and Solanum aethiopicum Group Aculeatum (=S. [...] Read more.
Although cytoplasmic male sterility (CMS) is well established in eggplant, CMS-based interspecific hybrids with allied species have not yet been reported or studied. In this study, five previously developed CMS-based interspecific F1 hybrids between eggplant and Solanum aethiopicum Group Aculeatum (=S. integrifolium) and Group Gilo (=S. gilo), together with their parental lines, were morphologically evaluated for 67 seedling, vegetative, floral, and fruit traits, and their heterosis for vegetative growth was studied. Male fertility was assessed based on anther morphology and pollen viability, while female fertility was evaluated through backcrosses to both parents. The hybrids exhibited predominantly intermediate phenotypes and clustered distinctly from parental lines as confirmed by principal component analysis. Remarkable heterosis was observed for most growth-related traits, indicating favorable nuclear–cytoplasmic interactions despite the use of CMS eggplant lines as maternal parents. All hybrids showed complete male sterility, characterized by non-viable pollen and pronounced anther homeotic alterations, the latter indicating CMS-related effects on male fertility. Female fertility was severely reduced, likely due to meiotic irregularities, as evidenced by the failure of most attempted backcrosses. However, successful recovery of BC1 progeny after backcrossing one CMS-based F1 hybrid to S. gilo demonstrates partial reproductive compatibility and provides a genetic bridge for CMS introgression into S. gilo. These results indicate that CMS systems are suitable for eggplant interspecific crosses aimed at vigorous rootstock production and CMS cytoplasm introgression into allied germplasm. Full article
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