Identification and characterization of CYC2-like genes related to floral symmetric development in Tagetes erecta (Asteraceae)

Zhu, Yu; Liu, Yuhan; Wang, Wenjing; Li, Hang; Liu, Cuicui; Dou, Linlin; Wei, Ludan; Cheng, Wenhan; Bao, Manzhu; Yi, Qingping; He, Yanhong

doi:10.1016/j.gene.2023.147804

Cited by 2 publications

(2 citation statements)

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“…TCP transcription factors perform comprehensive functions in plant growth and development, such as branching [34][35][36], leaf morphogenesis [37][38][39], and flower develop-ment [40,41]. Additionally, the TCP genes are also involved in the response to exogenous factors, such as salt stress and other abiotic stresses [43][44][45][46][47][48][49][50].…”

Section: Discussionmentioning

confidence: 99%

“…The small family of plant-specific TCP transcription factors includes TEOSINTE BRANCHED1 (TB1) in Zea mays, CYCOLOIDEA (CYC) in Antirrhinum majus, and PRO-LIFERATING CELL FACTORS 1 and 2 (PCF1 and PCF2) in Oryza sativa, which perform comprehensive functions in plant growth and development, such as branching [34][35][36], leaf morphogenesis [37][38][39], flower development [40,41], and hormone pathway generation [42]. Additionally, TCP genes are also involved in the response to exogenous factors such as salt stress and other abiotic stresses [43][44][45][46][47][48][49][50].…”

Section: Introductionmentioning

confidence: 99%

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Amaranth’s Growth and Physiological Responses to Salt Stress and the Functional Analysis of AtrTCP1 Gene

Liu,

An,

Lai

2024

IJMS

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Amaranth species are C4 plants that are rich in betalains, and they are tolerant to salinity stress. A small family of plant-specific TCP transcription factors are involved in the response to salt stress. However, it has not been investigated whether amaranth TCP1 is involved in salt stress. We elucidated that the growth and physiology of amaranth were affected by salt concentrations of 50–200 mmol·L−1 NaCl. The data showed that shoot and root growth was inhibited at 200 mmol·L−1, while it was promoted at 50 mmol·L−1. Meanwhile, the plants also showed physiological responses, which indicated salt-induced injuries and adaptation to the salt stress. Moreover, AtrTCP1 promoted Arabidopsis seed germination. The germination rate of wild-type (WT) and 35S::AtrTCP1-GUS Arabidopsis seeds reached around 92% by the seventh day and 94.5% by the second day under normal conditions, respectively. With 150 mmol·L−1 NaCl treatment, the germination rate of the WT and 35S::AtrTCP1-GUS plant seeds was 27.0% by the seventh day and 93.0% by the fourth day, respectively. Under salt stress, the transformed 35S::AtrTCP1 plants bloomed when they grew 21.8 leaves after 16.2 days of treatment, which was earlier than the WT plants. The transformed Arabidopsis plants flowered early to resist salt stress. These results reveal amaranth’s growth and physiological responses to salt stress, and provide valuable information on the AtrTCP1 gene.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Amaranth’s Growth and Physiological Responses to Salt Stress and the Functional Analysis of AtrTCP1 Gene

Liu,

An,

Lai

2024

IJMS

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Marigold (Tagetes erecta) MADS-Box Genes: A Systematic Analysis and Their Implications for Floral Organ Development

Liu,

Wang,

et al. 2024

Agronomy

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Marigold (Tagetes erecta) has a capitulum with two floret types: sterile ray florets and fertile disc florets. This distinction makes marigold a valuable model for studying floral organ development in Asteraceae, where MADS-box transcription factors play crucial roles. Here, 65 MADS-box genes were identified in the marigold genome, distributed across all 12 chromosomes. These genes were classified into type I (13 genes) and type II (52 genes) according to phylogenetic relationships. The gene structure of type I was simpler than that of type II, with fewer conserved motifs. Type I was further divided into three subclasses, Mα (8 genes), Mβ (2 genes), and Mγ (3 genes), while type II was divided into two groups: MIKCC (50 genes) and MIKC* (2 genes), with MIKCC comprising 13 subfamilies. Many type II MADS-box genes had evolutionarily conserved functions in marigold. Expression analysis of type II genes across different organs revealed organ-specific patterns, identifying 34 genes related to flower organ development. Given the distinct characteristics of the two floret types, four genes were specifically expressed only in the petals of one floret type, while twenty genes were expressed in the stamens of disc florets. These genes might have been related to the formation of different floret types. Our research provided a comprehensive and systematic analysis of the marigold MADS-box genes and laid the foundation for further studies on the roles of MADS-box genes in floral organ development in Asteraceae.

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Identification and characterization of CYC2-like genes related to floral symmetric development in Tagetes erecta (Asteraceae)

Cited by 2 publications

References 53 publications

Amaranth’s Growth and Physiological Responses to Salt Stress and the Functional Analysis of AtrTCP1 Gene

Amaranth’s Growth and Physiological Responses to Salt Stress and the Functional Analysis of AtrTCP1 Gene

Marigold (Tagetes erecta) MADS-Box Genes: A Systematic Analysis and Their Implications for Floral Organ Development

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