ArticleAnnals of botany2012
Expression of PaNAC01, a Picea abies CUP-SHAPED COTYLEDON orthologue, is regulated by polar auxin transport and associated with differentiation of the shoot apical meristem and formation of separated cotyledons.
Article in Annals of botany, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.
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26 citing papers in PubMed, 58 citations in OpenAlex.
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- Genome-wide identification of the NAC gene family and its functional analysis in Liriodendron.BMC plant biology · 2023Article
- miR171 modulates induction of somatic embryogenesis in citrus callus.Plant cell reports · 2022Article
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- NtNAC053, A Novel NAC Transcription Factor, Confers Drought and Salt Tolerances in Tobacco.Frontiers in plant science · 2022Article
- Genome-wide prediction of cauliflower miRNAs and lncRNAs and their roles in post-transcriptional gene regulation.Planta · 2021Article
- Potato NAC Transcription Factor StNAC053 Enhances Salt and Drought Tolerance in TransgenicInternational journal of molecular sciences · 2021Article
- Comparative Analysis between Wild and Cultivated Cucumbers Reveals Transcriptional Changes during Domestication Process.Plants (Basel, Switzerland) · 2020Article
- The Soybean GmNAC019 Transcription Factor Mediates Drought Tolerance inInternational journal of molecular sciences · 2019Article
- Article
- PtWOX11 acts as master regulator conducting the expression of key transcription factors to induce de novo shoot organogenesis in poplar.Plant molecular biology · 2018Article
- Comprehensive analysis of NAC transcription factors and their expression during fruit spine development in cucumber (Horticulture research · 2018Article
- Genome-wide identification of miRNAs and lncRNAs in Cajanus cajan.BMC genomics · 2017Article
- Overexpression of PaNAC03, a stress induced NAC gene family transcription factor in Norway spruce leads to reduced flavonol biosynthesis and aberrant embryo development.BMC plant biology · 2017Article
- Genome-wide analysis of transcription factors during somatic embryogenesis in banana (Musa spp.) cv. Grand Naine.PloS one · 2017Article
- Sugarcane transcriptome analysis in response to infection caused by Acidovorax avenae subsp. avenae.PloS one · 2016Article
- The NAC transcription factor family in maritime pine (Pinus Pinaster): molecular regulation of two genes involved in stress responses.BMC plant biology · 2015Article
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4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
BACKGROUND AND
aimsDuring embryo development in most gymnosperms, the establishment of the shoot apical meristem (SAM) occurs concomitantly with the formation of a crown of cotyledons surrounding the SAM. It has previously been shown that the differentiation of cotyledons in somatic embryos of Picea abies is dependent on polar auxin transport (PAT). In the angiosperm model plant, Arabidopsis thaliana, the establishment of cotyledonary boundaries and the embryonal SAM is dependent on PAT and the expression of the CUP-SHAPED COTYLEDON (CUC) genes, which belong to the large NAC gene family. The aim of this study was to characterize CUC-like genes in a gymnosperm, and to elucidate their expression during SAM and cotyledon differentiation, and in response to PAT.
methodsSixteen Picea glauca NAC sequences were identified in GenBank and deployed to different clades within the NAC gene family using maximum parsimony analysis and Bayesian inference. Motifs conserved between angiosperms and gymnosperms were analysed using the motif discovery tool MEME. Expression profiles during embryo development were produced using quantitative real-time PCR. Protein conservation was analysed by introducing a P. abies CUC orthologue into the A. thaliana cuc1cuc2 double mutant. KEY
resultsTwo full-length CUC-like cDNAs denoted PaNAC01 and PaNAC02 were cloned from P. abies. PaNAC01, but not PaNAC02, harbours previously characterized functional motifs in CUC1 and CUC2. The expression profile of PaNAC01 showed that the gene is PAT regulated and associated with SAM differentiation and cotyledon formation. Furthermore, PaNAC01 could functionally substitute for CUC2 in the A. thaliana cuc1cuc2 double mutant.
conclusionsThe results show that CUC-like genes with distinct signature motifs existed before the separation of angiosperms and gymnosperms approx. 300 million years ago, and suggest a conserved function between PaNAC01 and CUC1/CUC2.
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