Genome-wide characterization and expression analysis of citrus NUCLEAR FACTOR-Y (NF-Y) transcription factors identified a novel NF-YA gene involved in drought-stress response and tolerance. 2018

Suzam L S Pereira, and Cristina P S Martins, and Aurizangela O Sousa, and Luciana R Camillo, and Caroline P Araújo, and Grazielle M Alcantara, and Danielle S Camargo, and Luciana C Cidade, and Alex-Alan F de Almeida, and Marcio G C Costa
Centro de Biotecnologia e Genética, Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz, Ilhéus, Bahia, Brazil.

Nuclear factor Y (NF-Y) is a ubiquitous transcription factor found in eukaryotes. It is composed of three distinct subunits called NF-YA, NF-YB and NF-YC. NF-Ys have been identified as key regulators of multiple pathways in the control of development and tolerance to biotic and abiotic factors. The present study aimed to identify and characterize the complete repertoire of genes coding for NF-Y in citrus, as well as to perform the functional characterization of one of its members, namely CsNFYA5, in transgenic tobacco plants. A total of 22 genes coding for NF-Y were identified in the genomes of sweet orange (Citrus sinensis) and Clementine mandarin (C. clementina), including six CsNF-YAs, 11 CsNF-YBs and five CsNF-YCs. Phylogenetic analyses showed that there is a NF-Y orthologous in the Clementine genome for each sweet orange NF-Y gene; this was not observed when compared to Arabidopsis thaliana. CsNF-Y proteins shared the same conserved domains with their orthologous proteins in other organisms, including mouse. Analysis of gene expression by RNA-seq and EST data demonstrated that CsNF-Ys have a tissue-specific and stress inducible expression profile. qRT-PCR analysis revealed that CsNF-YA5 exhibits differential expression in response to water deficit in leaves and roots of citrus plants. Overexpression of CsNF-YA5 in transgenic tobacco plants contributed to the reduction of H2O2 production under dehydration conditions and increased plant growth and photosynthetic rate under normal conditions and drought stress. These biochemical and physiological responses to drought stress promoted by CsNF-YA5 may confer a productivity advantage in environments with frequent short-term soil water deficit.

UI MeSH Term Description Entries
D010802 Phylogeny The relationships of groups of organisms as reflected by their genetic makeup. Community Phylogenetics,Molecular Phylogenetics,Phylogenetic Analyses,Phylogenetic Analysis,Phylogenetic Clustering,Phylogenetic Comparative Analysis,Phylogenetic Comparative Methods,Phylogenetic Distance,Phylogenetic Generalized Least Squares,Phylogenetic Groups,Phylogenetic Incongruence,Phylogenetic Inference,Phylogenetic Networks,Phylogenetic Reconstruction,Phylogenetic Relatedness,Phylogenetic Relationships,Phylogenetic Signal,Phylogenetic Structure,Phylogenetic Tree,Phylogenetic Trees,Phylogenomics,Analyse, Phylogenetic,Analysis, Phylogenetic,Analysis, Phylogenetic Comparative,Clustering, Phylogenetic,Community Phylogenetic,Comparative Analysis, Phylogenetic,Comparative Method, Phylogenetic,Distance, Phylogenetic,Group, Phylogenetic,Incongruence, Phylogenetic,Inference, Phylogenetic,Method, Phylogenetic Comparative,Molecular Phylogenetic,Network, Phylogenetic,Phylogenetic Analyse,Phylogenetic Clusterings,Phylogenetic Comparative Analyses,Phylogenetic Comparative Method,Phylogenetic Distances,Phylogenetic Group,Phylogenetic Incongruences,Phylogenetic Inferences,Phylogenetic Network,Phylogenetic Reconstructions,Phylogenetic Relatednesses,Phylogenetic Relationship,Phylogenetic Signals,Phylogenetic Structures,Phylogenetic, Community,Phylogenetic, Molecular,Phylogenies,Phylogenomic,Reconstruction, Phylogenetic,Relatedness, Phylogenetic,Relationship, Phylogenetic,Signal, Phylogenetic,Structure, Phylogenetic,Tree, Phylogenetic
D010940 Plant Proteins Proteins found in plants (flowers, herbs, shrubs, trees, etc.). The concept does not include proteins found in vegetables for which PLANT PROTEINS, DIETARY is available. Plant Protein,Protein, Plant,Proteins, Plant
D002957 Citrus A plant genus of the family RUTACEAE. They bear the familiar citrus fruits including oranges, grapefruit, lemons, and limes. There are many hybrids which makes the nomenclature confusing. Citron Tree,Fruit, Citrus,Lemon Tree,Orange Tree, Bitter,Orange Tree, Mandarin,Orange Tree, Seville,Orange Tree, Sour,Pomelo Tree,Pummelo Tree,Tangerine Tree,Citrus Fruit,Citrus aurantium,Citrus bergamia,Citrus grandis,Citrus hystrix,Citrus limon,Citrus maxima,Citrus medica,Citrus reticulata,Kaffir Lime,Bitter Orange Tree,Bitter Orange Trees,Citron Trees,Citrus aurantiums,Citrus bergamias,Citrus grandi,Citrus hystrices,Citrus medicas,Citrus reticulatas,Lemon Trees,Lime, Kaffir,Mandarin Orange Tree,Mandarin Orange Trees,Orange Trees, Bitter,Orange Trees, Mandarin,Orange Trees, Seville,Orange Trees, Sour,Pomelo Trees,Pummelo Trees,Seville Orange Tree,Seville Orange Trees,Sour Orange Tree,Sour Orange Trees,Tangerine Trees,Tree, Bitter Orange,Tree, Citron,Tree, Lemon,Tree, Mandarin Orange,Tree, Pomelo,Tree, Pummelo,Tree, Seville Orange,Tree, Sour Orange,Tree, Tangerine,Trees, Bitter Orange,Trees, Citron,Trees, Lemon,Trees, Mandarin Orange,Trees, Pomelo,Trees, Pummelo,Trees, Seville Orange,Trees, Sour Orange,Trees, Tangerine,aurantium, Citrus,bergamia, Citrus,hystrices, Citrus,maxima, Citrus,medicas, Citrus,reticulata, Citrus
D013312 Stress, Physiological The unfavorable effect of environmental factors (stressors) on the physiological functions of an organism. Prolonged unresolved physiological stress can affect HOMEOSTASIS of the organism, and may lead to damaging or pathological conditions. Biotic Stress,Metabolic Stress,Physiological Stress,Abiotic Stress,Abiotic Stress Reaction,Abiotic Stress Response,Biological Stress,Metabolic Stress Response,Physiological Stress Reaction,Physiological Stress Reactivity,Physiological Stress Response,Abiotic Stress Reactions,Abiotic Stress Responses,Abiotic Stresses,Biological Stresses,Biotic Stresses,Metabolic Stress Responses,Metabolic Stresses,Physiological Stress Reactions,Physiological Stress Responses,Physiological Stresses,Reaction, Abiotic Stress,Reactions, Abiotic Stress,Response, Abiotic Stress,Response, Metabolic Stress,Stress Reaction, Physiological,Stress Response, Metabolic,Stress Response, Physiological,Stress, Abiotic,Stress, Biological,Stress, Biotic,Stress, Metabolic
D014026 Nicotiana A plant genus of the family SOLANACEAE. Members contain NICOTINE and other biologically active chemicals; the dried leaves of Nicotiana tabacum are used for SMOKING. Tobacco Plant,Nicotiana tabacum,Plant, Tobacco,Plants, Tobacco,Tobacco Plants
D016415 Sequence Alignment The arrangement of two or more amino acid or base sequences from an organism or organisms in such a way as to align areas of the sequences sharing common properties. The degree of relatedness or homology between the sequences is predicted computationally or statistically based on weights assigned to the elements aligned between the sequences. This in turn can serve as a potential indicator of the genetic relatedness between the organisms. Sequence Homology Determination,Determination, Sequence Homology,Alignment, Sequence,Alignments, Sequence,Determinations, Sequence Homology,Sequence Alignments,Sequence Homology Determinations
D017343 Genes, Plant The functional hereditary units of PLANTS. Plant Genes,Gene, Plant,Plant Gene
D017360 Arabidopsis A plant genus of the family BRASSICACEAE that contains ARABIDOPSIS PROTEINS and MADS DOMAIN PROTEINS. The species A. thaliana is used for experiments in classical plant genetics as well as molecular genetic studies in plant physiology, biochemistry, and development. Arabidopsis thaliana,Cress, Mouse-ear,A. thaliana,A. thalianas,Arabidopses,Arabidopsis thalianas,Cress, Mouse ear,Cresses, Mouse-ear,Mouse-ear Cress,Mouse-ear Cresses,thaliana, A.,thaliana, Arabidopsis,thalianas, A.
D055864 Droughts Prolonged dry periods in natural climate cycle. They are slow-onset phenomena caused by rainfall deficit combined with other predisposing factors. Drought
D023081 CCAAT-Binding Factor A heterotrimeric DNA-binding protein that binds to CCAAT motifs in the promoters of eukaryotic genes. It is composed of three subunits: A, B and C. CCAAT-Binding Factor, A-Subunit,CCAAT-Binding Factor, B-Subunit,CCAAT-Binding Factor, C-Subunit,CBF Protein, CCAAT-Binding,CBF-A Protein, CCAAT-Binding,CBF-B Protein, CCAAT-Binding,CBF-C Protein, CCAAT-Binding,CCAAT-Binding Protein, CP1,CCAAT-Binding Transcription Factor,CCAAT-Binding-Factor,NF-Y Protein,CBF A Protein, CCAAT Binding,CBF B Protein, CCAAT Binding,CBF C Protein, CCAAT Binding,CBF Protein, CCAAT Binding,CCAAT Binding Factor,CCAAT Binding Factor, A Subunit,CCAAT Binding Factor, B Subunit,CCAAT Binding Factor, C Subunit,CCAAT Binding Protein, CP1,CCAAT Binding Transcription Factor,CCAAT-Binding CBF Protein,CCAAT-Binding CBF-A Protein,CCAAT-Binding CBF-B Protein,CCAAT-Binding CBF-C Protein,CP1 CCAAT-Binding Protein,Factor, A-Subunit CCAAT-Binding,Factor, B-Subunit CCAAT-Binding,Factor, C-Subunit CCAAT-Binding,NF Y Protein,Protein, CCAAT-Binding CBF-A,Protein, CCAAT-Binding CBF-B,Protein, NF-Y,Transcription Factor, CCAAT-Binding

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