Molecular cloning and characterization of ETHYLENE OVERPRODUCER 1-LIKE 1 gene, LeEOL1, from tomato (Lycopersicon esculentum Mill.) fruit. 2007

Hong-Liang Zhu, and Ben-Zhong Zhu, and Yi Shao, and Xi-Jin Lin, and Xiao-Guang Wang, and Hong-Yan Gao, and Yun-Hong Xie, and Ying-Cong Li, and Yun-Bo Luo
Laboratory of Fruit Biology, College of Food Science & Nutritional Engineering, China Agricultural University, No. 17 Qinghua Donglu, Beijing 100083, People's Republic of China.

Recently, ETHYLENE OVERPRODUCER 1 (ETO1) had been cloned and identified as a negative post-transcriptional regulator in the ethylene biosynthesis in Arabidopsis. However, little was known about the role of ETO1 in other species, especially in tomato, which was an ideal model for studying the biosynthesis of ethylene during tomato fruit ripening. In this study, a tomato ETHYLENE OVERPRODUCER 1-LIKE 1 (LeEOL1) was cloned. The LeEOL1 cDNA was 3,515 bp long and carried an ORF that putatively encoded a polypeptide of 886 amino acids with a predicted molecular mass of 95 kDa. It shared 74% identity in amino acid sequence with Arabidopsis EOL1 and had one BTB (Broad-complex, Tramtrack, Bric-à-brac) domain and two TPR (tetratricopeptide repeat) domains, which were also conserved domains in AtEOL1. RT-PCR analysis of the temporal expression of LeEOL1 showed that its transcript decreased companied with increase of ethylene production in tomato ripening. The level of LeEOL1 transcripts in wild type tomato fruit at mature green stage did not distinctively change when treated with exogenous ethylene.

UI MeSH Term Description Entries
D008969 Molecular Sequence Data Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories. Sequence Data, Molecular,Molecular Sequencing Data,Data, Molecular Sequence,Data, Molecular Sequencing,Sequencing Data, Molecular
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
D003001 Cloning, Molecular The insertion of recombinant DNA molecules from prokaryotic and/or eukaryotic sources into a replicating vehicle, such as a plasmid or virus vector, and the introduction of the resultant hybrid molecules into recipient cells without altering the viability of those cells. Molecular Cloning
D005030 Ethylenes Derivatives of ethylene, a simple organic gas of biological origin with many industrial and biological use.
D000595 Amino Acid Sequence The order of amino acids as they occur in a polypeptide chain. This is referred to as the primary structure of proteins. It is of fundamental importance in determining PROTEIN CONFORMATION. Protein Structure, Primary,Amino Acid Sequences,Sequence, Amino Acid,Sequences, Amino Acid,Primary Protein Structure,Primary Protein Structures,Protein Structures, Primary,Structure, Primary Protein,Structures, Primary Protein
D001483 Base Sequence The sequence of PURINES and PYRIMIDINES in nucleic acids and polynucleotides. It is also called nucleotide sequence. DNA Sequence,Nucleotide Sequence,RNA Sequence,DNA Sequences,Base Sequences,Nucleotide Sequences,RNA Sequences,Sequence, Base,Sequence, DNA,Sequence, Nucleotide,Sequence, RNA,Sequences, Base,Sequences, DNA,Sequences, Nucleotide,Sequences, RNA
D017124 Conserved Sequence A sequence of amino acids in a polypeptide or of nucleotides in DNA or RNA that is similar across multiple species. A known set of conserved sequences is represented by a CONSENSUS SEQUENCE. AMINO ACID MOTIFS are often composed of conserved sequences. Conserved Sequences,Sequence, Conserved,Sequences, Conserved
D017343 Genes, Plant The functional hereditary units of PLANTS. Plant Genes,Gene, Plant,Plant Gene
D018076 DNA, Complementary Single-stranded complementary DNA synthesized from an RNA template by the action of RNA-dependent DNA polymerase. cDNA (i.e., complementary DNA, not circular DNA, not C-DNA) is used in a variety of molecular cloning experiments as well as serving as a specific hybridization probe. Complementary DNA,cDNA,cDNA Probes,Probes, cDNA
D018551 Solanum lycopersicum A plant species of the family SOLANACEAE, native of South America, widely cultivated for their edible, fleshy, usually red fruit. Lycopersicon esculentum,Tomatoes,Tomato

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