title: Comparative analysis of the RTFL peptide family on the control of plant organogenesis.
abstract: Plant peptides play important roles in various aspects of plant growth and development. The RTFL/DVL family includes small peptides that are widely conserved among land plants. Overexpression of six RTFL genes in Arabidopsis was suggestive of their functions as negative regulators of cell proliferation and as positional cues along the longitudinal axis of the plant body . At this time, few reports are available on RTFL paralogs in other species and the evolutionary relationship of RTFL members among land plants remains unclear. In this study, we compared and analyzed whole amino acid sequences of 188 RTFL members from 22 species among land plants and identified 73 motifs. All RTFL members could be grouped into four clades, and each clade exhibited specific motif patterns, indicative of unique evolutionary traits in the RTFL family. In agreement with this hypothesis, we analyzed two RTFL members from Oryza sativa and Arabidopsis by overexpressing them in Arabidopsis, revealing similar phenotypes suggestive of a conserved function of the RTFL family between eudicots and monocots, as well as different phenotypes and unique functions.
authors.affiliation: College of Life Science, Wuhan University, Wuhan, 430072, Hubei, China.
authors.forename: Pin
authors.initials: P
authors.lastname: Guo
authors.forename: Asami
authors.initials: A
authors.lastname: Yoshimura
authors.forename: Naoko
authors.initials: N
authors.lastname: Ishikawa
authors.forename: Takahiro
authors.initials: T
authors.lastname: Yamaguchi
authors.forename: Youhao
authors.initials: Y
authors.lastname: Guo
authors.forename: Hirokazu
authors.initials: H
authors.lastname: Tsukaya
mesh_terms: D020816:Amino Acid Motifs; D000595:Amino Acid Sequence; D017360:Arabidopsis / Q000235:genetics* / Q000254:growth & development; D005075:Biological Evolution; D015870:Gene Expression; D008969:Molecular Sequence Data; D005810:Multigene Family; D063246:Organogenesis, Plant / Q000235:genetics*; D012275:Oryza / Q000235:genetics*; D010455:Peptides / Q000378:metabolism; D010641:Phenotype; D010802:Phylogeny; D010940:Plant Proteins / Q000235:genetics* / Q000378:metabolism; D010944:Plants / Q000235:genetics*; D016415:Sequence Alignment; D017422:Sequence Analysis, DNA
chemical_list: D010455:Peptides; D010940:Plant Proteins