Evolutionary pattern of the FAE1 gene in brassicaceae and its correlation with the erucic acid trait

The fatty acid elongase 1 (FAE1) gene catalyzes the initial condensation step in the elongation pathway of VLCFA (very long chain fatty acid) biosynthesis and is thus a key gene in erucic acid biosynthesis. Based on a worldwide collection of 62 accessions representing 14 tribes, 31 genera, 51 specie...

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Published in:PloS one 2013-12, Vol.8 (12), p.e83535-e83535
Main Authors: Sun, Xiaoqin, Pang, Hui, Li, Mimi, Peng, Bin, Guo, Haisong, Yan, Qinqin, Hang, Yueyu
Format: Article
Language:English
Subjects:
Acetyltransferases - genetics
Amino acids
Analysis
Arabidopsis
Bioinformatics
Biological evolution
Biosynthesis
Brassica
Brassica napus
Brassicaceae
Brassicaceae - genetics
Brassicaceae - metabolism
Cloning
Condensates
Correlation
Correlation analysis
Crambe
Deoxyribonucleic acid
DNA
Elongation
Erucic Acids - metabolism
Evolution
Evolution, Molecular
Fatty acids
Genes
Genes, Plant
Genetic Association Studies
Genetic diversity
Genetic engineering
Genetic research
Genomes
Laboratories
Low level
Molecular biology
Mutation
Phylogenetics
Phylogeny
Plants (botany)
Polymorphism, Genetic
Quantitative Trait Loci
Reconstruction
Seeds
Unsaturated fatty acids
Variation
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Summary:The fatty acid elongase 1 (FAE1) gene catalyzes the initial condensation step in the elongation pathway of VLCFA (very long chain fatty acid) biosynthesis and is thus a key gene in erucic acid biosynthesis. Based on a worldwide collection of 62 accessions representing 14 tribes, 31 genera, 51 species, 4 subspecies and 7 varieties, we conducted a phylogenetic reconstruction and correlation analysis between genetic variations in the FAE1 gene and the erucic acid trait, attempting to gain insight into the evolutionary patterns and the correlations between genetic variations in FAE1 and trait variations. The five clear, deeply diverged clades detected in the phylogenetic reconstruction are largely congruent with a previous multiple gene-derived phylogeny. The Ka/Ks ratio (
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0083535