title: Identification of 30 MYB transcription factor genes and analysis of their expression during abiotic stress in peanut (Arachis hypogaea L.).
abstract: The MYB superfamily constitutes one of the most abundant groups of transcription factors and plays central roles in developmental processes and defense responses in plants. In the work described in this article, 30 unique peanut MYB genes that contained full-length cDNA sequences were isolated. The 30 genes were grouped into three categories: one R1R2R3-MYB, nine R2R3-MYBs and 20 MYB-related members. The sequence composition of the R2 and R3 repeats was conserved among the nine peanut R2R3-MYB proteins. Phylogenetic comparison of the members of this superfamily between peanut and Arabidopsis revealed that the putative functions of some peanut MYB proteins were clustered into the Arabidopsis functional groups. Expression analysis during abiotic stress identified a group of MYB genes that responded to at least one stress treatment. This is the first comprehensive study of the MYB gene family in peanut.
authors.affiliation: Shandong Peanut Research Institute, Qingdao 266100, China.
authors.forename: Na
authors.initials: N
authors.lastname: Chen
authors.forename: Qingli
authors.initials: Q
authors.lastname: Yang
authors.forename: Lijuan
authors.initials: L
authors.lastname: Pan
authors.forename: Xiaoyuan
authors.initials: X
authors.lastname: Chi
authors.forename: Mingna
authors.initials: M
authors.lastname: Chen
authors.forename: Dongqing
authors.initials: D
authors.lastname: Hu
authors.forename: Zhen
authors.initials: Z
authors.lastname: Yang
authors.forename: Tong
authors.initials: T
authors.lastname: Wang
authors.forename: Mian
authors.initials: M
authors.lastname: Wang
authors.forename: Shanlin
authors.initials: S
authors.lastname: Yu
mesh_terms: D000595:Amino Acid Sequence; D010367:Arachis / Q000235:genetics* / Q000502:physiology; D018076:DNA, Complementary; D017343:Genes, Plant; D020570:Genes, myb; D008969:Molecular Sequence Data; D010802:Phylogeny; D010940:Plant Proteins / Q000737:chemistry / Q000235:genetics; D060888:Real-Time Polymerase Chain Reaction; D013312:Stress, Physiological
chemical_list: D018076:DNA, Complementary; D010940:Plant Proteins
keywords: ABA; AP2; APETELA2; Abiotic stress; ESTs; Expressed Sequence Tags; LCL1; LHY/CCA1-like 1; MYB; NJ tree; Neighbor-joining tree; ORFs; Phylogenetic analysis; TFs; abscisic acid; open reading frames; transcription factors