Novel Studies in Crop Breeding for Promoting Agro-Biodiversity—2nd Edition

A special issue of Agronomy (ISSN 2073-4395). This special issue belongs to the section "Agroecology Innovation: Achieving System Resilience".

Deadline for manuscript submissions: 31 March 2025 | Viewed by 1465

Special Issue Editors


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Guest Editor
Department of Agricultural and Environmental Sciences—Production, Landscape, Agroenergy, Università degli Studi di Milano, Via G. Celoria 2, 20133 Milan, Italy
Interests: breeding; molecular plant breeding; plant genetics; plant genomics; agrobiodiversity; germplasm bank
Special Issues, Collections and Topics in MDPI journals

E-Mail
Guest Editor
Department of Earth and Environmental Sciences, University of Pavia, Via S. Epifanio 14, 27100 Pavia, Italy
Interests: molecular plant breeding; plant genetics; agrobiodiversity; germplasm bank
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues, 

Agrobiodiversity is the result of human and natural selection over millennia and has allowed the development of civilizations as we know them today. In fact, it has provided food, fodder, fiber, medicines, fuel, and other useful products. The legacy of the selection made by the farmers of the past was the starting point for the development of the modern varieties used today. In this Special Issue, we will place emphasis on the new studies regarding conservation, valorization, and breeding activities aimed at increasing agrobiodiversity. In recent years, molecular tools have implemented the ability to quickly develop new varieties, narrowing the genetic bases of the cultivated species, and, in some cases, limiting yield and productivity globally. For this motif, recently, pre-breeding activity has become commonly used in order to introgress useful genes from wild relatives, promising landraces, and traditional cultivars. Contributions to this Special Issue are invited from experts working at different system levels, including species, varieties, and environment/ecological perspectives, and those using any study methodology. Works concerning in situ and ex situ germplasm bank collection studies, pre-breeding, breeding, molecular breeding, and genome studies are welcomed. 

Prof. Dr. Roberto Pilu
Prof. Dr. Michela Landoni
Guest Editors

Manuscript Submission Information

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Keywords

  • breeding
  • molecular breeding
  • plant genetics
  • plant genomics
  • agrobiodiversity
  • germplasm bank

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Published Papers (1 paper)

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Research

15 pages, 1151 KiB  
Article
Quantitative Trait Loci Analysis of Maize Husk Characteristics Associated with Gibberella Ear Rot Resistance
by Andrea Magarini, Anna Pirovano, Martina Ghidoli, Elena Cassani, Paola Casati and Roberto Pilu
Agronomy 2024, 14(9), 1916; https://doi.org/10.3390/agronomy14091916 - 27 Aug 2024
Viewed by 855
Abstract
Maize (Zea mays L.) is a vital crop susceptible to Gibberella ear rot (GER), a disease caused by Fusarium graminearum, resulting in significant yield losses and mycotoxin production. This study aimed to investigate the correlation between ear characteristics and GER resistance [...] Read more.
Maize (Zea mays L.) is a vital crop susceptible to Gibberella ear rot (GER), a disease caused by Fusarium graminearum, resulting in significant yield losses and mycotoxin production. This study aimed to investigate the correlation between ear characteristics and GER resistance in 74 maize inbred lines (42 with non-stiff stalks and 32 stiff stalks) adapted to the northern Italian environment. Mycotoxin analysis was performed to assess the presence of deoxynivalenol (DON) and zearalenone (ZEA). The results showed a positive correlation between the husk traits, like the husk number and husk cover, and GER resistance in both heterotic groups. A positive correlation was also found between the DON and ZEA concentrations. In addition, we conducted a genome-wide association study (GWAS) which identified novel quantitative trait loci (QTLs) associated with the husk number, husk cover, ear attitude, and infection score. These QTLs can be utilized in marker-assisted selection for breeding new GER-resistant maize varieties. Our study provides valuable insights into the genetic basis of ear traits and their relationship with GER resistance, which can contribute to an improvement in the environmental and economical sustainability of the corn growing system. Full article
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