ArticlePloS one2019
The MADS-box genes expressed in the inflorescence of Orchis italica (Orchidaceae).
Article in PloS one, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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12 citing papers in PubMed, 22 citations in OpenAlex.
- Modular control of orchid beauty: co-expression networks orchestrate organ development and evolution in Phalaenopsis flower.Plant molecular biology · 2026Article
- Genome of the early spider-orchid Ophrys sphegodes provides insights into sexual deception and pollinator adaptation.Nature communications · 2024Article
- Evolution of major flowering pathway integrators in Orchidaceae.Plant reproduction · 2024Article
- Transcriptomic characterization of Trichoderma harzianum T34 primed tomato plants: assessment of biocontrol agent induced host specific gene expression and plant growth promotion.BMC plant biology · 2023Article
- Functional conservation and divergence ofFrontiers in plant science · 2023Article
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- Characterization of ThreeFrontiers in plant science · 2022Article
- Genome sequence of Apostasia ramifera provides insights into the adaptive evolution in orchids.BMC genomics · 2021Article
- Review
- Identification and expression profiling of selected MADS-box family genes in Dendrobium officinale.Genetica · 2019Article
- Dissecting the Function of MADS-Box Transcription Factors in Orchid Reproductive Development.Frontiers in plant science · 2019Review
- Evolutionary Conservation of the Orchid MYB Transcription Factors DIV, RAD, and DRIF.Frontiers in plant science · 2019Article
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Authors and funding
3 authors at 1 institution in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
The Orchidaceae family, which is one of the most species-rich flowering plant families, includes species with highly diversified and specialized flower shapes. The aim of this study was to analyze the MADS-box genes expressed in the inflorescence of Orchis italica, a wild Mediterranean orchid species. MADS-box proteins are transcription factors involved in various plant biological processes, including flower development. In the floral tissues of O. italica, 29 MADS-box genes are expressed that are classified as both class I and II. Class I MADS-box genes include one Mβ-type gene, thereby confirming the presence of this type of MADS-box genes in orchids. The class II MIKC* gene is highly expressed in the column, which is consistent with the conserved function of the MIKC* genes in gametophyte development. In addition, homologs of the SOC, SVP, ANR1, AGL12 and OsMADS32 genes are expressed. Compared with previous knowledge on class II MIKCC genes of O. italica involved in the ABCDE model of flower development, the number of class B and D genes has been confirmed. In addition, 4 class A (AP1/FUL) transcripts, 2 class E (SEP) transcripts, 2 new class C (AG) transcripts and 1 new AGL6 transcript have been identified. Within the AP1/FUL genes, the sequence divergence, relaxation of purifying selection and expression profiles suggest a possible functional diversification within these orchid genes. The detection of only two SEP transcripts in O. italica, in contrast with the 4 genes found in other orchids, suggests that only two SEP genes could be present in the subfamily Orchidoideae. The expression pattern of the MIKCC genes of O. italica indicates that low levels at the boundary of the domain of a given MADS-box gene can overlap with the expression of genes belonging to a different functional A-E class in the adjacent domain, thereby following a "fading borders" model.
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