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Molecular and Cellular Characterizations: Reproductive Development in Plants
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Molecular and Cellular Characterizations: Reproductive Development in Plants

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: 30 August 2024 | Viewed by 2922

Special Issue Editor

Dr. Yanming Deng

E-Mail Website
Guest Editor
1. Jiangsu Key Laboratory for Horticultural Crop Genetic Improvement, Institute of Leisure Agriculture, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
2. School of Life Sciences, Jiangsu University, Zhenjiang 212013, China
3. College of Horticulture, Nanjing Agricultural University, Nanjing 210014, China
Interests: cross compatibility; cross reproductive barrier; embryo development and abortion; pollen development; floral organogenesis; microsporogenesis; megasporogenesis; pollen tube growth
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The Special Issue will focus on publishing high-quality research in the field of cellular and molecular mechanisms of reproductive development in ornamental plants, including those involved in the process of floral induction and organogenesis, flower bud or organ development, meiosis, microsporogenesis and male gametophyte development, megasporogenesis and female gametophyte development, pollen germination, pollen tube growth and guidance, double fertilization and embryo development, seed development and dormancy, etc. Studies focusing on revealing the molecular mechanism of self-incompatibility, cross-compatibility, cross-reproductive barriers, and the strategies to overcome the barriers underlying distant hybridization (including interspecific and intergeneric hybridization) are strongly encouraged and will be given priority for acceptance to publication. Studies should be supported by genetic or biochemical evidence, and those providing only simple descriptive results will be rejected.

Dr. Yanming Deng
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

  • floral induction and organogenesis
  • flower bud development
  • meiosis
  • microsporogenesis
  • megasporogenesis
  • pollen development
  • pollen germination
  • pollen tube growth
  • embryo development and abortion
  • self-incompatibility
  • cross compatibility
  • cross reproductive barrier

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Published Papers (3 papers)

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Research

14 pages, 14431 KiB  
Article
APETALA2-like Floral Homeotic Protein Up-Regulating FaesAP1_2 Gene Involved in Floral Development in Long-Homostyle Common Buckwheat
by Qingyu Yang, Lan Luo, Xinyu Jiao, Xiangjian Chen, Yuzhen Liu and Zhixiong Liu
Int. J. Mol. Sci. 2024, 25(13), 7193; https://doi.org/10.3390/ijms25137193 - 29 Jun 2024
Viewed by 441
Abstract
In the rosid species Arabidopsis thaliana, the AP2-type AP2 transcription factor (TF) is required for specifying the sepals and petals identities and confers a major A-function to antagonize the C-function in the outer floral whorls. In the asterid species Petunia, the [...] Read more.
In the rosid species Arabidopsis thaliana, the AP2-type AP2 transcription factor (TF) is required for specifying the sepals and petals identities and confers a major A-function to antagonize the C-function in the outer floral whorls. In the asterid species Petunia, the AP2-type ROB TFs are required for perianth and pistil development, as well as repressing the B-function together with TOE-type TF BEN. In Long-homostyle (LH) Fagopyrum esculentum, VIGS-silencing showed that FaesAP2 is mainly involved in controlling filament and style length, but FaesTOE is mainly involved in regulating filament length and pollen grain development. Both FaesAP2 (AP2-type) and FaesTOE (TOE-type) are redundantly involved in style and/or filament length determination instead of perianth development. However, neither FaesAP2 nor FaesTOE could directly repress the B and/or C class genes in common buckwheat. Moreover, the FaesAP1_2 silenced flower showed tepal numbers, and filament length decreased obviously. Interestingly, yeast one-hybrid (Y1H) and dual-luciferase reporter (DR) further suggested that FaesTOE directly up-regulates FaesAP1_2 to be involved in filament length determination in LH common buckwheat. Moreover, the knockdown of FaesTOE expression could result in expression down-regulation of the directly target FaesAP1_2 in the FaesTOE-silenced LH plants. Our findings uncover a stamen development pathway in common buckwheat and offer deeper insight into the functional evolution of AP2 orthologs in the early-diverging core eudicots. Full article
(This article belongs to the Special Issue Molecular and Cellular Characterizations: Reproductive Development in Plants)
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14 pages, 3760 KiB  
Communication
Genetic Cause of Hybrid Lethality Observed in Reciprocal Interspecific Crosses between Nicotiana simulans and N. tabacum
by Takahiro Tezuka, Shota Nagai, Chihiro Matsuo, Toshiaki Okamori, Takahiro Iizuka and Wataru Marubashi
Int. J. Mol. Sci. 2024, 25(2), 1226; https://doi.org/10.3390/ijms25021226 - 19 Jan 2024
Viewed by 1000
Abstract
Hybrid lethality, a type of postzygotic reproductive isolation, is an obstacle to wide hybridization breeding. Here, we report the hybrid lethality that was observed in crosses between the cultivated tobacco, Nicotiana tabacum (section Nicotiana), and the wild tobacco species, Nicotiana simulans (section [...] Read more.
Hybrid lethality, a type of postzygotic reproductive isolation, is an obstacle to wide hybridization breeding. Here, we report the hybrid lethality that was observed in crosses between the cultivated tobacco, Nicotiana tabacum (section Nicotiana), and the wild tobacco species, Nicotiana simulans (section Suaveolentes). Reciprocal hybrid seedlings were inviable at 28 °C, and the lethality was characterized by browning of the hypocotyl and roots, suggesting that hybrid lethality is due to the interaction of nuclear genomes derived from each parental species, and not to a cytoplasmic effect. Hybrid lethality was temperature-sensitive and suppressed at 36 °C. However, when hybrid seedlings cultured at 36 °C were transferred to 28 °C, all of them showed hybrid lethality. After crossing between an N. tabacum monosomic line missing one copy of the Q chromosome and N. simulans, hybrid seedlings with or without the Q chromosome were inviable and viable, respectively. These results indicated that gene(s) on the Q chromosome are responsible for hybrid lethality and also suggested that N. simulans has the same allele at the Hybrid Lethality A1 (HLA1) locus responsible for hybrid lethality as other species in the section Suaveolentes. Haplotype analysis around the HLA1 locus suggested that there are at least six and two haplotypes containing Hla1-1 and hla1-2 alleles, respectively, in the section Suaveolentes. Full article
(This article belongs to the Special Issue Molecular and Cellular Characterizations: Reproductive Development in Plants)
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17 pages, 18853 KiB  
Article
Comparative Physiological and Transcriptome Analysis of Crossostephium chinense Reveals Its Molecular Mechanisms of Salt Tolerance
by Yuxin Wang, Miao Liu, Ziyu Guo, Yilin Liang, Yufan Lu, Yuxian Xu and Ming Sun
Int. J. Mol. Sci. 2023, 24(23), 16812; https://doi.org/10.3390/ijms242316812 - 27 Nov 2023
Viewed by 1080
Abstract
Crossostephium chinense is a wild species with strong salt tolerance that has great potential to improve the salt tolerance of cultivated chrysanthemums. Conversely, the unique salt-tolerant molecular mechanisms of Cr. chinense are still unclear. This study performed a comparative physiological and transcriptome analysis [...] Read more.
Crossostephium chinense is a wild species with strong salt tolerance that has great potential to improve the salt tolerance of cultivated chrysanthemums. Conversely, the unique salt-tolerant molecular mechanisms of Cr. chinense are still unclear. This study performed a comparative physiological and transcriptome analysis of Cr. chinense, Chrysanthemum lavandulifolium, and three hybrids to investigate the salt-tolerant molecular mechanisms of Cr. chinense. The physiological results showed that Cr. chinense maintained higher superoxide dismutase (SOD) activity, alleviating oxidative damage to the membrane. KEGG enrichment analysis showed that plant hormone signaling transduction and the MAPK signaling pathway were mostly enriched in Cr. chinense and hybrids under salt stress. Further weighted gene co-expression network analysis (WGCNA) of DEGs suggested that abscisic acid (ABA) signaling transduction may play a significant role in the salt-tolerant mechanisms of Cr. chinense and hybrids. The tissue-specific expression patterns of the candidate genes related to ABA signaling transduction and the MAPK signaling pathway indicate that genes related to ABA signaling transduction demonstrated significant expression levels under salt stress. This study offers important insights into exploring the underlying salt-tolerant mechanisms of Cr. chinense mediated by ABA signaling transduction and broadens our understanding of the breeding strategies for developing salt-tolerant cultivars utilizing salt-tolerant chrysanthemum germplasms. Full article
(This article belongs to the Special Issue Molecular and Cellular Characterizations: Reproductive Development in Plants)
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