title: [Evolution aspects of intraspecific polymorphysm of Arabidopsis thaliana genes coding subunit I of Mg-chelatase complex].
abstract: Intraspecific polymorphism in the CHLI 2 gene, coding subunit I of Mg-chelatase complex that forms Mg-protoporphyrin IX was investigated in 19 ecotypes of Arabidopsis thaliana. Sequence divergence by 35 nucleotides was found; 12 of them result into amino acid change in third exon where functional domains of the protein are located. In one of two found divergent sequence haplogroups, Col haplogroup an excess of low-frequency polymorphism was revealed, showing the action of purifying selection and indicating a functional significance of CHLI 2 gene. Paths of evolutionary dynamics for CHLI 1 and CHLI 2 genes determining different forms of subunit I of Mg-chelatase complex of Arabidopsis thaliana are proposed.
authors.forename: A A
authors.initials: AA
authors.lastname: Apchelimov
authors.forename: T A
authors.initials: TA
authors.lastname: Ezhova
authors.forename: S V
authors.initials: SV
authors.lastname: Shestakov
mesh_terms: D017360:Arabidopsis / Q000201:enzymology / Q000235:genetics*; D029681:Arabidopsis Proteins / Q000235:genetics* / Q000378:metabolism; D005294:Ferrochelatase / Q000235:genetics* / Q000378:metabolism; D011110:Polymorphism, Genetic; D021122:Protein Subunits / Q000235:genetics / Q000378:metabolism
chemical_list: D029681:Arabidopsis Proteins; D021122:Protein Subunits; D005294:Ferrochelatase