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Molecular Breeding and Genetics Research in Plants, 2nd 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: 20 January 2025 | Viewed by 786

Special Issue Editor


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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 (GWAS), 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

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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

22 pages, 11148 KiB  
Article
Exogenous Melatonin Modulates Photosynthesis and Antioxidant Systems for Improving Drought Tolerance of Sorghum Seedling
by Yushan Bo, Yifan Xing, Yu Wang, Wendong Gu, Xinyi Jiang, Jiarui Yu, Xiaolong Shi, Chunjuan Liu, Chang Liu and Yufei Zhou
Curr. Issues Mol. Biol. 2024, 46(9), 9785-9806; https://doi.org/10.3390/cimb46090581 - 3 Sep 2024
Viewed by 631
Abstract
Sorghum faces significant production challenges due to drought stress. Melatonin has been demonstrated to play a crucial role in coping with stresses in plants. This study investigated the effect of exogenous melatonin on the sorghum seedling growth, photosynthetic capacity, and antioxidant system under [...] Read more.
Sorghum faces significant production challenges due to drought stress. Melatonin has been demonstrated to play a crucial role in coping with stresses in plants. This study investigated the effect of exogenous melatonin on the sorghum seedling growth, photosynthetic capacity, and antioxidant system under drought stress. The results indicated that drought stress inhibited the growth of sorghum seedlings by a marked reduction in leaf relative water content, along with a significant increase in both malondialdehyde and hydrogen peroxide content. The drought stress also led to a significant diminution in chlorophyll contents, thereby curtailing the capacity for light energy capture. Furthermore, the efficiency of the photosynthetic electron transport chain was adversely impacted. However, the application of exogenous melatonin notably mitigated the adverse effects on sorghum seedlings under the drought stress. Additionally, it stimulated an elevation in the photosynthetic rate and a decrease in non-photochemical quenching. The exogenous melatonin also facilitated the preservation of the chloroplast ultra-structure and boosted the activity of antioxidant enzymes and the content of non-enzymatic antioxidants. Cluster heat maps and principal component analysis further revealed significant correlations among various parameters under different treatment conditions. These results highlight melatonin’s role in improving sorghum’s drought tolerance, which is beneficial for agricultural management. Full article
(This article belongs to the Special Issue Molecular Breeding and Genetics Research in Plants, 2nd Edition)
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