title: Combinational effect of mutational bias and translational selection for translation efficiency in tomato (Solanum lycopersicum) cv. Micro-Tom.
abstract: We conducted a comprehensive analysis of codon usage bias (CUB) based on the available non-redundant full-length cDNA (nrFLcDNA) and expressed sequence tags (ESTs) data of cultivar Micro-Tom and evaluated the associations of observed CUB and measurements of transcriptional and translational effectiveness. The analysis presented in our study suggests a correlation, which is negative but highly correlated between Axis 1 and GC3s (r=-0.827, P<0.01), indicating that mutational bias has a significant and dominant repressive role to the choices of GC3. We also observed a strong positive correlation between codon adaptation index (CAI) and translational adaptation index (tAIg) (0.407, P<0.01), which demonstrates the facilitation of efficient translation by the optimal codon usage patterns of the highly expressed genes. We believe that the complete set of optimal codon usage patterns detected in this study will serve as a model to enhance the transgenesis in the studied cultivar of Solanum lycopersicum.
authors.affiliation: Department of Biodiversity and Molecular Ecology, Research and Innovation Centre, Fondazione Edmund Mach, Via E Mach 1, 38010 S. Michele all'Adige (TN), Italy. sablokg@gmail.com
authors.forename: Gaurav
authors.initials: G
authors.lastname: Sablok
authors.forename: XianMing
authors.initials: X
authors.lastname: Wu
authors.forename: Jimmy
authors.initials: J
authors.lastname: Kuo
authors.forename: Kinshuk Chandra
authors.initials: KC
authors.lastname: Nayak
authors.forename: Vesselin
authors.initials: V
authors.lastname: Baev
authors.forename: Claudio
authors.initials: C
authors.lastname: Varotto
authors.forename: Fengfeng
authors.initials: F
authors.lastname: Zhou
mesh_terms: D001482:Base Composition; D001483:Base Sequence; D003062:Codon; D019143:Evolution, Molecular; D020224:Expressed Sequence Tags; D015870:Gene Expression; D018551:Solanum lycopersicum / Q000235:genetics*; D008957:Models, Genetic; D058977:Molecular Sequence Annotation; D015999:Multivariate Analysis; D009154:Mutation; D016366:Open Reading Frames; D010940:Plant Proteins / Q000235:genetics; D030821:Plants, Genetically Modified; D014176:Protein Biosynthesis
chemical_list: D003062:Codon; D010940:Plant Proteins