Molecular identification and functional verification of SPL9 and SPL15 of Lilium

Zhao, Mengna; Liu, Rongxiu; Chen, Yao; Cui, Jinteng; Ge, Wei; Zhang, Kezhong

doi:10.1007/s00438-021-01832-8

Cited by 6 publications

(2 citation statements)

References 46 publications

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“…In a previous study, miRNA156 could promote shoot branching and the vegetative to reproductive phase transition by regulating SPL9 and SPL15 [71]. In lilium, LbrSPL9 and LbrSPL15 could regulate phase transition [72]. In the ivory module, genes encoding SPL15 demonstrated extreme connectivity and we speculated that the initiation of bulbs may be facilitated (Figure 5b).…”

Section: Tfs Involved In Bulblet Formationmentioning

confidence: 76%

Transcriptional Insights into Lily Stem Bulblet Formation: Hormonal Regulation, Sugar Metabolism, and Transcriptional Networks in LA Lily ‘Aladdin’

Zhang,

Lyu,

Lyu

2024

Horticulturae

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Bulblets, as the main reproductive organ of lilies, have a tremendous impact on the reproductive efficiency of lilies. Cytokinin is known to promote the formation of lily bulblets, but little is known about the mechanisms involved. In this study, a combination of full-length transcriptome and high-throughput RNA sequencing (RNA-Seq) was performed at the leaf axils of LA lily ‘Aladdin’ to characterize the transcriptional response to 6-BA treatment during the critical period of stem-to-bulblet transition. Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis showed that 6-BA treatment caused significant changes in starch and sucrose metabolism and plant hormone balance. In particular, the high expression of SUS1 and TPS6 in the 6-BA-treated group suggests that sucrose may act as a key signal to promote bulblet initiation. Furthermore, the induction of elevated expression of genes associated with cytokinin and auxin transport and signaling is crucial for initiating bulblet emergence and stimulating growth. WGCNA analysis revealed that hub TFs such as BLHs, ARFs, HD-ZIPs, AP2/ERFs, and SBPs were significantly overexpressed with genes involved in carbohydrate metabolism and phytohormone signaling, which warranted more in-depth functional studies. This study enriches the understanding of plant hormone-related genes, sugar metabolism-related genes and various transcription factors in the regulation of plant organ development, and lays the foundation for further studies on the molecular mechanisms of lily stem bulblet formation.

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Section: Tfs Involved In Bulblet Formationmentioning

confidence: 76%

Transcriptional Insights into Lily Stem Bulblet Formation: Hormonal Regulation, Sugar Metabolism, and Transcriptional Networks in LA Lily ‘Aladdin’

Zhang,

Lyu,

Lyu

2024

Horticulturae

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“…For example, the genes of TgFT1, TgFT2, and TgFT3 were isolated from tulips, and functional analysis in Arabidopsis showed that overexpression of TgFT2 resulted in very early flowering, while delayed flowering was observed after the overexpression of TgFT1 and TgFT3 [17]. The overexpression of LbrSPL9 and LbrSPL15, identified in lily, resulted in early flowering in A. thaliana, which demonstrated the regulatory function of the age pathway in lily [18]. It is recognized that bulb size and endogenous hormones are the main factors that affect the flowering in bulbs, and this has been proven in several bulb flowers, such as Lilium [19], Tulipa [20], Narcissus [21], and Lycoris [22].…”

Section: Introductionmentioning

confidence: 97%

Identification of Differentially Expressed Genes Related to Floral Bud Differentiation and Flowering Time in Three Populations of Lycoris radiata

Cheng

Zhang

Shu

et al. 2022

IJMS

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The transition from vegetative to reproductive growth is important for controlling the flowering of Lycoris radiata. However, the genetic control of this complex developmental process remains unclear. In this study, 18 shoot apical meristem (SAM) samples were collected from early-, mid- and late-flowering populations during floral bud differentiation. The histological analysis of paraffin sections showed that the floral bud differentiation could be divided into six stages; the differentiation time of the early group was earlier than that of the middle and late groups, and the late group was the latest. In different populations, some important differential genes affecting the flowering time were identified by transcriptome profiles of floral bud differentiation samples. Weighted gene co-expression network analysis (WGCNA) was performed to enrich the gene co-expression modules of diverse flowering time populations (FT) and floral bud differentiation stages (ST). In the MEyellow module, five core hub genes were identified, including CO14, GI, SPL8, SPL9, and SPL15. The correlation network of hub genes showed that they interact with SPLs, AP2, hormone response factors (auxin, gibberellin, ethylene, and abscisic acid), and several transcription factors (MADS-box transcription factor, bHLH, MYB, and NAC3). It suggests the important role of these genes and the complex molecular mechanism of floral bud differentiation and flowering time in L. radiata. These results can preliminarily explain the molecular mechanism of floral bud differentiation and provide new candidate genes for the flowering regulation of Lycoris.

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Molecular mechanism of miRNA mediated biosynthesis of secondary metabolites in medicinal plants

Li,

Guo,

et al. 2024

Plant Physiology and Biochemistry

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Molecular identification and functional verification of SPL9 and SPL15 of Lilium

Cited by 6 publications

References 46 publications

Transcriptional Insights into Lily Stem Bulblet Formation: Hormonal Regulation, Sugar Metabolism, and Transcriptional Networks in LA Lily ‘Aladdin’

Transcriptional Insights into Lily Stem Bulblet Formation: Hormonal Regulation, Sugar Metabolism, and Transcriptional Networks in LA Lily ‘Aladdin’

Identification of Differentially Expressed Genes Related to Floral Bud Differentiation and Flowering Time in Three Populations of Lycoris radiata

Molecular mechanism of miRNA mediated biosynthesis of secondary metabolites in medicinal plants

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