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Molecular Breeding and Genetics Research in Plants—3rd Edition
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Molecular Breeding and Genetics Research in Plants—3rd Edition

A special issue of Current Issues in Molecular Biology (ISSN 1467-3045). This special issue belongs to the section "Molecular Plant Sciences".

Deadline for manuscript submissions: 31 December 2025 | Viewed by 224

Special Issue Editor

Dr. Shimeles Tilahun

E-Mail Website
Guest Editor
Agriculture and Life Sciences Research Institute Kangwon National University, Chuncheon 24341, Republic of Korea
Interests: plant physiology; antioxidant activity; plant tissue culture; agricultural entomology; plant pathology; organic chemistry; food quality; food chemistry; food analysis
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Plant breeding and genetic research are now increasingly affecting people’s lives. To meet the demand for food and other biomaterials, new technologies focused on plant breeding need to receive more attention. Preliminary information on the genetic architecture of traits can be achieved through quantitative trait locus (QTL) mapping, genome-wide association studies (GWASs), genomic selection (GS), and transcriptomics. Improvement of monogenic or oligogenic traits or their introgression into other elite varieties is straightforward. In addition, the deployment of new breeding techniques such as gene editing, coupled with genome-wide screening, allows for more precise changes in traits. Although significant progress has been made in plant breeding research, continued population growth, constraints such as abiotic and biotic stresses, and unpredictable climate change require us to continue to focus on plant breeding and genetic research.

Dr. Shimeles Tilahun
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.

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Keywords

  • genetic basis
  • genomic selection/prediction
  • molecular breeding
  • biotic and abiotic stresses
  • qPCR

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Published Papers (1 paper)

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Research

33 pages, 2073 KB  
Article
Distinct Transcriptomic Profile Underlying High CO2 and Ethylene-Induced Deastringency in ‘Daebong’ Persimmon Fruit
by Min Woo Baek, Se Min Chang, DoSu Park, Shimeles Tilahun and Cheon Soon Jeong
Curr. Issues Mol. Biol. 2025, 47(9), 689; https://doi.org/10.3390/cimb47090689 - 26 Aug 2025
Abstract
Astringent persimmons (Diospyros kaki Thunb.) require effective postharvest deastringency treatments due to their high soluble tannin content at harvest. While high CO2 and ethylene are commonly used to remove astringency, their different effects on fruit firmness and quality require cultivar-specific approaches. [...] Read more.
Astringent persimmons (Diospyros kaki Thunb.) require effective postharvest deastringency treatments due to their high soluble tannin content at harvest. While high CO2 and ethylene are commonly used to remove astringency, their different effects on fruit firmness and quality require cultivar-specific approaches. This study investigated the transcriptomic and biochemical responses of ‘Daebong’ persimmon to high CO2 and ethylene treatments during deastringency. Both treatments significantly decreased soluble tannin and total phenolic content, enhancing fruit edibility. However, the firmness was maintained under high levels of CO2, but it decreased quickly after exposure to ethylene. RNA-Seq analysis identified 2271 differentially expressed genes (DEGs) and revealed distinct transcriptional signatures for each treatment. CO2 treatment activated hypoxia-responsive genes, stress-related transcription factors (e.g., WRKY, ERF14/26), and components of antioxidant defense (e.g., GSTU17, peroxidases), which contributed to oxidative stress reduction and preservation of firmness. On the other hand, ethylene treatment increased ethylene biosynthesis (ACS), signaling (EIN3-binding F-box), and ripening-related genes (polygalacturonase, laccase, ERF061/113), which promote cell wall degradation and softening. Functional enrichment analysis revealed that various regulatory mechanisms are responsible for the insolubilization of tannins, loss of antioxidants, and changes in firmness. These findings provide new insights into the molecular responses of pollination-constant astringent (PCA) persimmons, particularly the ‘Daebong’ cultivar, to postharvest deastringency treatments for the development of more effective postharvest management strategies. The results suggest that high CO2 helps maintain fruit quality by promoting stress adaptation and suppressing pathways that lead to softening, whereas ethylene accelerates the ripening process by activating signaling pathways associated with ethylene. Full article
(This article belongs to the Special Issue Molecular Breeding and Genetics Research in Plants—3rd Edition)
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