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Molecular and Epigenetic Regulation in Seed Development
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Molecular and Epigenetic Regulation in Seed Development

A special issue of International Journal of Molecular Sciences (ISSN 1422-0067). This special issue belongs to the section "Molecular Plant Sciences".

Deadline for manuscript submissions: 20 May 2025 | Viewed by 1390

Special Issue Editors

Dr. Yifeng Wang

E-Mail Website
Guest Editor
State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou 311400, China
Interests: seed developmental biology; seed dormancy; germination; phytohormone; molecular mechanism
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Qingyun Bu

E-Mail Website
Guest Editor
Northeast Institute of Geography and Agroecology, Key Laboratory of Soybean Molecular Design Breeding, Chinese Academy of Sciences, Harbin 150081, China
Interests: stress resistance; molecular breeding; molecular mechanism; gene function; rice

Special Issue Information

Dear Colleagues,

The mature stage of seeds is a critical period of seed development, during which seeds accumulate storage materials such as starch, lipids, and proteins; epigenetic modifications are essential for accumulating these storage materials. Seed dormancy and germination are critical developmental transitions from reproductive growth to vegetative growth, involving the activation or silencing of many genes; epigenetic modifications also play an important role in this process. Therefore, exploring new regulators and applying epigenetic modifications to improve crop yield and quality represent significant fields of research. This Special Issue aims to present an overview of the latest fundamental discoveries in this field of seed biology. We welcome all types of submissions, including original research, reviews, and methodologies in this field, including (but not limited to) research covering:

  • Mining novel epigenetic regulators involved in the seed development;
  • Expanding the epigenetic network of seed development;
  • Genetic improvement of seed via epigenetic.

Dr. Yifeng Wang
Prof. Dr. Qingyun Bu
Guest Editors

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. International Journal of Molecular Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. There is an Article Processing Charge (APC) for publication in this open access journal. For details about the APC please see here. 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

  • seed development
  • molecular mechanism
  • epigenetic modification
  • gene function
  • genetic improvement
 

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Published Papers (2 papers)

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Research

17 pages, 3016 KiB  
Article
A R2R3-MYB Transcription Factor of GmMYB62 Regulates Seed-Coat Color and Seed Size in Arabidopsis
by Bi-Yao Zhao, Jian-Bo Yuan, Jin-Bao Gu, Cong Li, Yan Lin, Yu-Hang Zhang, Bai-Hong Zhang, Yin-Hua Wang, Xing Ye, Yang Li, Zhen-Yu Wang and Tian-Xiu Zhong
Int. J. Mol. Sci. 2025, 26(8), 3457; https://doi.org/10.3390/ijms26083457 - 8 Apr 2025
Viewed by 285
Abstract
The seed-coat color and seed size have an impact on both the evolutionary fitness and the grain yield of crops. Soybean is a major oil crop, and the seed-coat color and seed size exhibit natural diversity among the different soybean varieties. Here, we [...] Read more.
The seed-coat color and seed size have an impact on both the evolutionary fitness and the grain yield of crops. Soybean is a major oil crop, and the seed-coat color and seed size exhibit natural diversity among the different soybean varieties. Here, we found an R2R3-MYB transcription factor of GmMYB62, which shows a significant increase in expression as the seed-coat color changes from yellow to black in different soybean varieties. The GmMYB62 was specifically highly expressed in reproductive organs, especially in floral organs in soybeans. The GmMYB62 encodes a nuclear protein that contains two MYB domains. In the phylogenetic analysis, the GmMYB62 was relatively conserved after the divergence of the monocots and dicots, and it also grouped with transcriptional repressors of MYBs in anthocyanin synthesis. The GmMYB62 was overexpressed in Arabidopsis and the seeds displayed a pale-brown coat in GmMYB62 overexpression lines, in contrast to the dark-brown seed coat observed in wild-type of Col-0. The anthocyanin content in the GmMYB62 overexpression lines was dramatically reduced when compared to Col-0. Additionally, the seeds in overexpression lines showed shorter lengths, larger widths, and lower thousand-seed weights than those in Col-0. Furthermore, the genes related to anthocyanin synthesis and seed size regulation were investigated, and expression of eight genes that involved in anthocyanin synthesis pathway, like chalcone synthase (CHS), chalcone isomerase (CHI), flavanone 3-hydroxylase (F3H), and anthocyanidin synthase (ANS) were severely inhibited in the GmMYB62 overexpression lines when compared to Col-0. In addition, the ARGOS-LIKE (ARL), B-Type Cyclin 1 (CYCB1), and enhancer of DA1-1 (EOD3), which govern cell expansion and proliferation, were highly expressed in GmMYB62 overexpression lines when compared to Col-0. Overall, this study sheds new light on the control of seed-coat color and seed size by GmMYB62 and provides potentially valuable targets for improving crop seed quality. Full article
(This article belongs to the Special Issue Molecular and Epigenetic Regulation in Seed Development)
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17 pages, 4661 KiB  
Article
Identification and Characterization of Histone Modification Gene Families and Their Expression Patterns During Pod and Seed Development in Peanut
by Yingying Chang, Yohannes Gelaye, Ruonan Yao, Ping Yang, Jihua Li, Nian Liu, Li Huang, Xiaojing Zhou, Weigang Chen, Bolun Yu, Huifang Jiang, Boshou Liao, Yong Lei and Huaiyong Luo
Int. J. Mol. Sci. 2025, 26(6), 2591; https://doi.org/10.3390/ijms26062591 - 13 Mar 2025
Viewed by 403
Abstract
Histone methylation and acetylation play potential roles in plant growth and development through various histone modification (HM) genes. However, studies of HM genes are still limited in peanut (Arachis hypogaea L.), a globally important oilseed crop. Here, comprehensive identification and investigation of [...] Read more.
Histone methylation and acetylation play potential roles in plant growth and development through various histone modification (HM) genes. However, studies of HM genes are still limited in peanut (Arachis hypogaea L.), a globally important oilseed crop. Here, comprehensive identification and investigation of HM genes were performed using the whole genome of peanut, and a total of 207 AhHMs encoding 108 histone methyltransferases, 51 histone demethylases, 16 histone acetylases, and 32 histone deacetylases were identified. Detailed analysis of these AhHMs, including chromosome locations, gene structures, protein motifs, and protein–protein interactions, was performed. Tandem, segmental, transposed, dispersed, and whole-genome duplications were involved in the evolution and expansion of the HM gene families in peanut. Ka/Ks analysis indicated that the AhHMs underwent purifying selection. The expression profiles of the 207 AhHMs were investigated during the pod and seed development stages on the basis of the transcriptome sequencing results. Quantitative real-time PCR confirmed that eight AhHMs were differentially expressed during pod and seed development. These results provide data support for further studying the epigenetic mechanism of peanut histones, deepen the understanding of seed development, and provide a new direction for the cultivation of more high-yield and high-quality peanut varieties. Full article
(This article belongs to the Special Issue Molecular and Epigenetic Regulation in Seed Development)
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