Santiago Prochetto1,2, Renata Reinheimer3,2. 1. Fellow of Consejo Nacional de Investigaciones Científicas y Técnicas de la República Argentina (CONICET), FBCB, Santa Fe, Argentina. 2. Instituto de Agrobiotecnología del Litoral, Universidad Nacional del Litoral, CONICET, FBCB, Santa Fe, Argentina. 3. Member of Consejo Nacional de Investigaciones Científicas y Técnicas de la República Argentina (CONICET), FBCB, Santa Fe, Argentinaand.
Abstract
INTRODUCTION: The Indeterminate Domain (IDD) proteins are a plant-specific subclass of C2H2 Zinc Finger transcription factors. Some of these transcription factors play roles in diverse aspects of plant metabolism and development, but the function of most of IDD genes is unknown and the molecular evolution of the subfamily has not been explored in detail. METHODS: In this study, we mined available genome sequences of green plants (Viridiplantae) to reconstruct the phylogeny and then described the motifs/expression patterns of IDD genes. KEY RESULTS: We identified the complete set of IDD genes of 16 Streptophyta genomes. We found that IDD and its sister clade STOP arose by a duplication at the base of Streptophyta. Once on land, the IDD genes duplicated extensively, giving rise to at least ten lineages. Some of these lineages were lost in extant non-vascular plants and gymnosperms, but all of them were retained in angiosperms, duplicating profoundly in dicots and monocots and acquiring, at the same time, surprising heterogeneity in their C-terminal regions and expression patterns. CONCLUSIONS: IDDs were present in the last common ancestor of Streptophyta. On land, IDDs duplicated extensively, leading to ten lineages. Later, IDDs were recruited by angiosperms where they diversified greatly in number, C-terminal and expression patterns. Interestingly, such diversification occurred during the evolution of novel traits of the plant body. This study provides a solid framework of the orthology relationships of green land plant IDD transcription factors, thus increasing the accuracy of orthologue identification in model and non-model species and facilitating the identification of agronomically important genes related to plant metabolism and development.
INTRODUCTION: The Indeterminate Domain (IDD) proteins are a plant-specific subclass of C2H2 Zinc Finger transcription factors. Some of these transcription factors play roles in diverse aspects of plant metabolism and development, but the function of most of IDD genes is unknown and the molecular evolution of the subfamily has not been explored in detail. METHODS: In this study, we mined available genome sequences of green plants (Viridiplantae) to reconstruct the phylogeny and then described the motifs/expression patterns of IDD genes. KEY RESULTS: We identified the complete set of IDD genes of 16 Streptophyta genomes. We found that IDD and its sister clade STOP arose by a duplication at the base of Streptophyta. Once on land, the IDD genes duplicated extensively, giving rise to at least ten lineages. Some of these lineages were lost in extant non-vascular plants and gymnosperms, but all of them were retained in angiosperms, duplicating profoundly in dicots and monocots and acquiring, at the same time, surprising heterogeneity in their C-terminal regions and expression patterns. CONCLUSIONS: IDDs were present in the last common ancestor of Streptophyta. On land, IDDs duplicated extensively, leading to ten lineages. Later, IDDs were recruited by angiosperms where they diversified greatly in number, C-terminal and expression patterns. Interestingly, such diversification occurred during the evolution of novel traits of the plant body. This study provides a solid framework of the orthology relationships of green land plant IDD transcription factors, thus increasing the accuracy of orthologue identification in model and non-model species and facilitating the identification of agronomically important genes related to plant metabolism and development.
Authors: Björn Nystedt; Nathaniel R Street; Anna Wetterbom; Andrea Zuccolo; Yao-Cheng Lin; Douglas G Scofield; Francesco Vezzi; Nicolas Delhomme; Stefania Giacomello; Andrey Alexeyenko; Riccardo Vicedomini; Kristoffer Sahlin; Ellen Sherwood; Malin Elfstrand; Lydia Gramzow; Kristina Holmberg; Jimmie Hällman; Olivier Keech; Lisa Klasson; Maxim Koriabine; Melis Kucukoglu; Max Käller; Johannes Luthman; Fredrik Lysholm; Totte Niittylä; Ake Olson; Nemanja Rilakovic; Carol Ritland; Josep A Rosselló; Juliana Sena; Thomas Svensson; Carlos Talavera-López; Günter Theißen; Hannele Tuominen; Kevin Vanneste; Zhi-Qiang Wu; Bo Zhang; Philipp Zerbe; Lars Arvestad; Rishikesh Bhalerao; Joerg Bohlmann; Jean Bousquet; Rosario Garcia Gil; Torgeir R Hvidsten; Pieter de Jong; John MacKay; Michele Morgante; Kermit Ritland; Björn Sundberg; Stacey Lee Thompson; Yves Van de Peer; Björn Andersson; Ove Nilsson; Pär K Ingvarsson; Joakim Lundeberg; Stefan Jansson Journal: Nature Date: 2013-05-22 Impact factor: 49.962
Authors: Soon Ju Park; Song Lim Kim; Shinyoung Lee; Byoung Il Je; Hai Long Piao; Sung Han Park; Chul Min Kim; Choong-Hwan Ryu; Su Hyun Park; Yuan-hu Xuan; Joseph Colasanti; Gynheung An; Chang-deok Han Journal: Plant J Date: 2008-10-04 Impact factor: 6.417