title: Evolutionary Profiling of Group II Pyridoxal-Phosphate-Dependent Decarboxylases Suggests Expansion and Functional Diversification of Histidine Decarboxylases in Tomato.
abstract: Pyridoxal phosphate (PLP)-dependent enzymes are one of the most important enzymes involved in plant N metabolism. Here, we explored the evolution of group II PLP-dependent decarboxylases (PLP_deC), including aromatic L-amino acid decarboxylase, glutamate decarboxylase, and histidine decarboxylase in the plant lineage. Gene identification analysis revealed a higher number of genes encoding PLP_deC in higher plants than in lower plants. Expression profiling of PLP_deC orthologs and syntelogs in (L.) Heynh., pepper ( L.), and tomato ( L.) pointed toward conserved as well as distinct roles in developmental processes such as fruit maturation and ripening and abiotic stress responses. We further characterized a putative promoter of tomato ripening-associated gene () operating in a complex regulatory circuit. Our analysis provides a firm basis for further in-depth exploration of the PLP_deC gene family, particularly in the economically important Solanaceae family.
authors.forename: Rahul
authors.initials: R
authors.lastname: Kumar
authors.forename: Gitanjali
authors.initials: G
authors.lastname: Jiwani
authors.forename: Amit
authors.initials: A
authors.lastname: Pareek
authors.forename: Thula
authors.initials: T
authors.lastname: SravanKumar
authors.forename: Ashima
authors.initials: A
authors.lastname: Khurana
authors.forename: Arun K
authors.initials: AK
authors.lastname: Sharma
mesh_terms: D002262:Carboxy-Lyases / Q000235:genetics*; D019143:Evolution, Molecular; D020869:Gene Expression Profiling; D018551:Solanum lycopersicum / Q000201:enzymology* / Q000235:genetics*; D011732:Pyridoxal Phosphate / Q000378:metabolism
chemical_list: D011732:Pyridoxal Phosphate; D002262:Carboxy-Lyases