The Ectocarpus IMMEDIATE UPRIGHT gene encodes a member of a novel 1 family of cysteine-rich proteins that have an unusual distribution across the eukaryotes - CNRS - Centre national de la recherche scientifique Accéder directement au contenu
Article Dans Une Revue Development Année : 2016

The Ectocarpus IMMEDIATE UPRIGHT gene encodes a member of a novel 1 family of cysteine-rich proteins that have an unusual distribution across the eukaryotes

Résumé

The sporophyte generation of the brown alga Ectocarpus sp. exhibits an unusual pattern of development compared with the majority of brown algae. The first cell division is symmetrical and the apical-basal axis is established late in development. In the immediate upright (imm) mutant, the initial cell undergoes an asymmetric division to immediately establish the apical-basal axis. We provide evidence which suggests that this phenotype corresponds to the ancestral state of the sporophyte. The IMM gene encodes a protein of unknown function that contains a repeated motif also found in the EsV-1-7 gene of the Ectocarpus virus EsV-1. Brown algae possess large families of EsV-1-7 domain genes but these genes are rare in other stramenopiles, suggesting that the expansion of this family might have been linked with the emergence of multicellular complexity. EsV-1-7 domain genes have a patchy distribution across eukaryotic supergroups and occur in several viral genomes, suggesting possible horizontal transfer during eukaryote evolution.
Fichier principal
Vignette du fichier
IMM characterisation paper 7nov16 final.pdf (351.18 Ko) Télécharger le fichier
Fig1.IMM_cloning.pdf (28.65 Ko) Télécharger le fichier
Fig2.RNAi.pdf (15.34 Mo) Télécharger le fichier
Fig3.qRT-PCR.pdf (11.24 Ko) Télécharger le fichier
Fig4.immPCA.pdf (106.83 Ko) Télécharger le fichier
Fig5.EsV-1-7_eukaryotes.pdf (857.9 Ko) Télécharger le fichier
FigS1.IUP_IDW_heatmap.pdf (146.09 Ko) Télécharger le fichier
FigS2.DE_log_imm_psp_heatmap.pdf (133.29 Ko) Télécharger le fichier
FigS3. EsV-1-7 family per array.pdf (195.1 Ko) Télécharger le fichier
FigS4.IMM_tree_MEGA.pdf (99.84 Ko) Télécharger le fichier
Supplementary Tables.xlsx (390 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-01925145 , version 1 (16-11-2018)

Identifiants

Citer

Nicolas N. Macaisne, Fuli Liu, Delphine Scornet, Akira F Peters, Agnieszka Lipinska, et al.. The Ectocarpus IMMEDIATE UPRIGHT gene encodes a member of a novel 1 family of cysteine-rich proteins that have an unusual distribution across the eukaryotes. Development, 2016, 144, pp.409-418. ⟨10.1242/dev.141523⟩. ⟨hal-01925145⟩
35 Consultations
74 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More