International Journal of Molecular Sciences

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Prof. Dr. Haihong Shang

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Guest Editor

Zhengzhou Research Base, State Key Laboratory of Cotton Biology, School of Agricultural Sciences, Zhengzhou University, Zhengzhou 450001, China
Interests: plant breeding; plant gene; cotton

Special Issue Information

Dear Colleagues,

The project intends to compile original research and review articles on recent developments in plant gene research, including gene editing technologies, gene expression regulation, genomics research, and studies on gene evolution. The following are just a few examples of subtopics:

With the aid of cutting-edge gene editing tools such as CRISPR/Cas9, scientists may accurately edit plant genes to modify their properties.
The new technique can aid in a better understanding of how plant genes express themselves.
New genes and regulatory elements can be discovered by studying the plant genome sequence, according to studies.
The development of plant genes to comprehend how plants adapt to various habitats and situations.
To uncover further information and combine the data on plant expression and genomes with bioinformatics technology.

Dr. Yanpeng Zhao is the Guest Editor Assistant, who will help manage the special issue.

Prof. Dr. Haihong Shang
Guest Editor

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Keywords

plant genes CRISPR/Cas9 editing technology
gene expression regulation
evolution of plant genes
gene function research
gene regulation mechanisms
machine learning genome data analysis and identification

Published Papers (2 papers)

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Research

18 pages, 8849 KiB

Open AccessArticle

Genome-Wide Characterization and Functional Validation of the ACS Gene Family in the Chestnut Reveals Its Regulatory Role in Ovule Development

by Yanhong Cui, Xingzhou Ji, Wenjie Yu, Yang Liu, Qian Bai and Shuchai Su

Int. J. Mol. Sci. 2024, 25(8), 4454; https://doi.org/10.3390/ijms25084454 - 18 Apr 2024

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Abstract

Ovule abortion significantly contributes to a reduction in chestnut yield. Therefore, an examination of the mechanisms underlying ovule abortion is crucial for increasing chestnut yield. In our previous study, we conducted a comprehensive multiomic analysis of fertile and abortive ovules and found that ACS genes in chestnuts (CmACS) play a crucial role in ovule development. Therefore, to further study the function of ACS genes, a total of seven CmACS members were identified, their gene structures, conserved structural domains, evolutionary trees, chromosomal localization, and promoter cis-acting elements were analyzed, and their subcellular localization was predicted and verified. The spatiotemporal specificity of the expression of the seven CmACS genes was confirmed via qRT–PCR analysis. Notably, CmACS7 was exclusively expressed in the floral organs, and its expression peaked during fertilization and decreased after fertilization. The ACC levels remained consistently greater in fertile ovules than in abortive ovules. The ACSase activity of CmACS7 was identified using the genetic transformation of chestnut healing tissue. Micro Solanum lycopersicum plants overexpressing CmACS7 had a significantly greater rate of seed failure than did wild-type plants. Our results suggest that ovule fertilization activates CmACS7 and increases ACC levels, whereas an overexpression of CmACS7 leads to an increase in ACC content in the ovule prior to fertilization, which can lead to abortion. In conclusion, the present study demonstrated that chestnut ovule abortion is caused by poor fertilization and not by nutritional competition. Optimization of the pollination and fertilization of female flowers is essential for increasing chestnut yield and reducing ovule abortion. Full article

(This article belongs to the Special Issue Gene Regulation and Genome Editing: New Insight in Plant Growth, Development, and Adaptation)

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21 pages, 8698 KiB

Open AccessArticle

Comparative Transcriptome Sequencing and Endogenous Phytohormone Content of Annual Grafted Branches of Zelkova schneideriana and Its Dwarf Variety HenTianGao

by Chenfei Huang, Xiaoling Jin, Haiyan Lin, Jinsong He and Yan Chen

Int. J. Mol. Sci. 2023, 24(23), 16902; https://doi.org/10.3390/ijms242316902 - 29 Nov 2023

Cited by 1 | Viewed by 670

Abstract

Zelkova schneideriana is a fast-growing tree species endemic to China. Recent surveys and reports have highlighted a continued decline in its natural populations; therefore, it is included in the Red List of Threatened Species by The International Union for Conservation of Nature. A new variety “HenTianGao” (H) has been developed with smaller plant height, slow growth, and lower branching points. In this study, we attempted to understand the differences in plant height of Z. schneideriana (J) and its dwarf variety H. We determined the endogenous hormone content in the annual grafted branches of both J and H. J exhibited higher gibberellic acid (GA)-19 and trans-Zeatin (tZ) levels, whereas H had higher levels of indole-3-acetic acid (IAA) catabolite 2-oxindole-3-acetic acid (OxIAA), IAA-Glu conjugate, and jasmonic acid (JA) (and its conjugate JA-Ile). The transcriptome comparison showed differential regulation of 20,944 genes enriched in growth and development, signaling, and metabolism-related pathways. The results show that the differential phytohormone level (IAA, JA, tZ, and GA) was consistent with the expression of the genes associated with their biosynthesis. The differences in relative OxIAA, IAA-Glu, GA19, trans-Zeatin, JA, and JA-Ile levels were linked to changes in respective signaling-related genes. We also observed significant differences in the expression of cell size, number, proliferation, cell wall biosynthesis, and remodeling-related genes in J and H. The differences in relative endogenous hormone levels, expression of biosynthesis, and signaling genes provide a theoretical basis for understanding the plant height differences in Z. schneideriana. Full article

(This article belongs to the Special Issue Gene Regulation and Genome Editing: New Insight in Plant Growth, Development, and Adaptation)

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