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Plants
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Seed Dormancy in Crops
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Seed Dormancy in Crops

A special issue of Plants (ISSN 2223-7747). This special issue belongs to the section "Plant Physiology and Metabolism".

Deadline for manuscript submissions: 31 July 2025 | Viewed by 1786

Special Issue Editors

Prof. Dr. Zhonghua Sheng

E-Mail Website
Guest Editor
China National Rice Research Institute, Hangzhou, China
Interests: plant
Dr. Yu-Jun Zhu

E-Mail Website
Guest Editor
China National Rice Research Institute, Hangzhou, China
Interests: molecular breeding; yield-related trait; flowering time; map-based cloning; QTL; genome editing; genetic interaction
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Preharvest sprouting (PHS) occurs frequently in regions where the temperature and precipitation are high as the global warming, causing significant losses in rice yield and quality. Strong dormancy rice varieties can effectively prevent PHS, but it will cause difficulty in emergence in the field, which is not conducive to the promotion of direct seeding cultivation.

Therefore, it is of great significance to clone the genes of rice seed dormancy, explore its physiology and biochemistry mechanism, and create appropriate dormancy rice varieties.

This Special Issue welcomes all types of research articles that explore rice dormancy germplasm, cloning seed dormancy genes, explore seed dormancy physiology and biochemistry mechanism and breeding rice varieties with preharvest sprouting resistance.

Prof. Dr. Zhonghua Sheng
Dr. Yu-Jun Zhu
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. Plants is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). 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 dormancy
  • gene cloning
  • physiology and biochemistry
  • rice breeding

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Published Papers (2 papers)

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Research

15 pages, 3214 KiB  
Article
Unraveling Allelic Impacts on Pre-Harvest Sprouting Resistance in TaVP1-B of Chinese Wheat Accessions Using Pan-Genome
by Danfeng Wang, Jinjin Xie, Jingwen Wang, Mengdi Mu, Haifeng Xiong, Fengshuo Ma, Peizhen Li, Menghan Jia, Shuangjing Li, Jiaxin Li, Mingyue Zhu, Peiwen Li, Haiyan Guan, Yi Zhang and Hao Li
Plants 2025, 14(4), 504; https://doi.org/10.3390/plants14040504 - 7 Feb 2025
Viewed by 695
Abstract
The TaVP1-B gene, located on the 3B chromosome of wheat, is a homolog of the Viviparous-1 (VP-1) gene of maize and was reported to confer resistance to pre-harvest sprouting (PHS) in wheat. In this study, the structure of the TaVP1-B gene [...] Read more.
The TaVP1-B gene, located on the 3B chromosome of wheat, is a homolog of the Viviparous-1 (VP-1) gene of maize and was reported to confer resistance to pre-harvest sprouting (PHS) in wheat. In this study, the structure of the TaVP1-B gene was analyzed using the wheat pan-genome consisting of 20 released cultivars (19 wheat are from China), and 3 single nucleotide polymorphisms (SNPs), which were identified at the 496 bp, 524 bp, and 1548 bp of the TaVP1-B CDS region, respectively. Haplotypes analysis showed that these SNPs were in complete linkage disequilibrium and that only two haplotypes designated as hap1 (TGG) and hap2 (GAA) were present. Association analysis between TaVP1-B haplotypes and PHS resistance of the 20 wheat cultivars in four experiment environments revealed that the average PHS resistance of accessions with hap1 was significantly better than that of accessions with hap2, which infers the effects of TaVP1-B on wheat PHS resistance. To further investigate the impacts of alleles at the TaVP1-B locus on PHS resistance, the SNP at 1548 bp of the TaVP1-B CDS region was converted to a KASP marker, which was used for genotyping 304 Chinese wheat cultivars, whose PHS resistance was evaluated in three environments. The average sprouting rates (SRs) of 135 wheat cultivars with the hap1 were significantly lower than the 169 cultivars with the hap2, validating the impacts of TaVP1-B on PHS resistance in Chinese wheat. The present study provided the breeding-friendly marker for functional variants in the TaVP1-B gene, which can be used for genetic improvement of PHS resistance in wheat. Full article
(This article belongs to the Special Issue Seed Dormancy in Crops)
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12 pages, 1634 KiB  
Article
Circannual Clock in Laelia speciosa (Orchidaceae) Through Dormancy vs. Germination Dynamics of Seeds Stored Under Controlled Conditions
by Erandeni Durán-Mendoza, Martha Cornejo-Gallegos, Alejandro Martínez-Palacios, Martha Elena Pedraza-Santos, Nahum M. Sánchez-Vargas, Guadalupe Alejandra Valdovinos-Ramírez, Adelaida Stephany Hernández-Valencia, Juan Manuel Chavarrieta-Yáñez, Eloísa Vidal-Lezama and María del Carmen Mandujano-Sánchez
Plants 2025, 14(3), 336; https://doi.org/10.3390/plants14030336 - 23 Jan 2025
Viewed by 765
Abstract
This study aimed to determine the dynamics of dormancy using triphenyl tetrazolium chloride (TTC) and asymbiotic germination in Laelia speciosa (Kunth) Schltr. seeds stored for three years and one year at different temperatures. This is the first report of a circannual rhythm in [...] Read more.
This study aimed to determine the dynamics of dormancy using triphenyl tetrazolium chloride (TTC) and asymbiotic germination in Laelia speciosa (Kunth) Schltr. seeds stored for three years and one year at different temperatures. This is the first report of a circannual rhythm in L. speciosa seeds under controlled storage conditions. Two experiments were carried out: (a) with seeds from wild populations of L. speciosa collected at two different times and dehydrated to 4% relative humidity (RH) and stored for three years at 25 °C, 6 °C, −20 °C, and −80 °C, and (b) with seeds from six fruits stored in liquid nitrogen (LN2; −196 °C) at 25 °C for 12 months. The germination conditions were 25 ± 1 °C with 16 h of light (23 μmol m−2 s−1) and 8 h of darkness for both trials. Because they have a rudimentary embryo, orchids are attributed a morphological latency; however, the staining of the embryo with TTC (>92%) in all the evaluations carried out throughout a year and the decrease in asymbiotic germination in the intermediate evaluations record a circannual biological cycle or clock, under temperature and humidity control (4% RH). Full article
(This article belongs to the Special Issue Seed Dormancy in Crops)
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