title: Genome-wide analysis suggests divergent evolution of lipid phosphotases/phosphotransferase genes in plants.
abstract: Genes of the LPPT (lipid phosphatase/phosphotransferase) family play important roles in lipid phosphorous transfer and triacylglycerol accumulation in plants. To provide overviews of the plant LPPT family and their overall relationships, here we carried out genome-wide identifications and analyses of plant LPPT family members. A total of 643 putative LPPT genes were identified from 48 sequenced plant genomes, among which 205 genes from 14 plants were chosen for further analyses. Plant LPPT genes belonged to three distinctive groups, namely the LPT (lipid phosphotransfease), LPP (lipid phosphatase), and pLPP (plastidic lipid phosphotransfease) groups. Genes of the LPT group could be further partitioned into three groups, two of which were only identified in terrestrial plants. Genes in the LPP and pLPP groups experienced duplications in early stages of plant evolution. Among 17 Zea mays LPPT genes, divergence of temporal-spatial expression patterns was revealed based on microarray data analysis. Peptide sequences of plant LPPT genes harbored different conserved motifs. A test of Branch Model versus One-ratio Model did not support significant selective pressures acting on different groups of LPPT genes, although quite different nonsynonymous evolutionary rates and selective pressures were observed. The complete picture of the plant LPPT family provided here should facilitate further investigations of plant LPPT genes and offer a better understanding of lipid biosynthesis in plants.
authors: a Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences & Ministry of Agriculture Key Laboratory of Crop Gene Resources and Germplasm Enhancement in Southern China, Danzhou, Hainan 571737, China.
authors: Peng
authors: P
authors: Wang
authors: a Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences & Ministry of Agriculture Key Laboratory of Crop Gene Resources and Germplasm Enhancement in Southern China, Danzhou, Hainan 571737, China.
authors: Zhenxi
authors: Z
authors: Chen
authors: b School of Pharmacy, Xinjiang Medical University, Urumqi, Xinjiang 830011, China.
authors: Rena
authors: R
authors: Kasimu
authors: c College of Agriculture, Hainan University, Haikou Hainan 570000, China.
authors: Yinhua
authors: Y
authors: Chen
authors: d State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China.
authors: Xiaoxiao
authors: X
authors: Zhang
authors: a Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences & Ministry of Agriculture Key Laboratory of Crop Gene Resources and Germplasm Enhancement in Southern China, Danzhou, Hainan 571737, China.
authors: Jiangtao
authors: J
authors: Gai
mesh_terms: D017360:Arabidopsis / Q000201:enzymology / Q000235:genetics; D001483:Base Sequence; D003062:Codon; D019143:Evolution, Molecular; D020440:Gene Duplication; D017343:Genes, Plant; D008563:Membrane Lipids / Q000235:genetics* / Q000378:metabolism; D010711:Phosphatidate Phosphatase / Q000235:genetics* / Q000378:metabolism; D010770:Phosphotransferases / Q000235:genetics* / Q000378:metabolism; D010802:Phylogeny; D010940:Plant Proteins / Q000235:genetics / Q000378:metabolism; D010944:Plants / Q000196:embryology / Q000235:genetics*; D016415:Sequence Alignment; D017421:Sequence Analysis; D013045:Species Specificity; D059467:Transcriptome; D003313:Zea mays / Q000201:enzymology / Q000235:genetics
chemical_list: D003062:Codon; D008563:Membrane Lipids; D010940:Plant Proteins; D010770:Phosphotransferases; D010711:Phosphatidate Phosphatase
keywords: duplication; lipid; lipid phosphatase/phosphotransferase; lipides; lipides phosphatases/phosphotransférases; motif; transcriptome