title: Expression of grapevine AINTEGUMENTA-like genes is associated with variation in ovary and berry size.
abstract: Fruit size is a highly important trait for most fruit and vegetable crops. This trait has been a main selection target and could be involved in divergent selection processes leading to the differentiation between modern table and wine cultivars. Even though its determination is highly influenced by cultural practices, several regions within the grapevine genome have been identified affecting berry size, either directly or indirectly through their effect on seed content. Using grapevine seeded cultivars, we have analyzed the relationship between ovary cell number and the final size of ovaries and berry fruits. We also performed the characterization of the grapevine AINTEGUMENTA-LIKE family, since it is well reported in Arabidopsis that AINTEGUMENTA (ANT) regulates cell proliferation and organ growth in flower organ primordia by maintaining the meristematic competence of cells during organogenesis. Here we show that orthologous grapevine gene expression associate with flower developmental stages suggesting a similar biological role for this gene family in this species. Moreover, we detected a correlation between those organs size and the level of expression of VviANT1 the grapevine homolog of AtANT. This grapevine gene also co-localizes in linkage group 18 with the confidence interval of a previously detected QTL for berry size. Thus our results suggest the involvement of ANT in the regulation of berry size in grapevine.
authors: Instituto de Biología Agrícola de Mendoza (IBAM), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional de Cuyo (FCA-UNCuyo), Almirante Brown 500, M5528AHB, Chacras de Coria, Mendoza, Argentina.
authors: Constanza
authors: C
authors: Chialva
authors: Instituto de Biología Agrícola de Mendoza (IBAM), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional de Cuyo (FCA-UNCuyo), Almirante Brown 500, M5528AHB, Chacras de Coria, Mendoza, Argentina.
authors: Estefanía
authors: E
authors: Eichler
authors: Instituto de Biología Agrícola de Mendoza (IBAM), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional de Cuyo (FCA-UNCuyo), Almirante Brown 500, M5528AHB, Chacras de Coria, Mendoza, Argentina.
authors: Cecilia
authors: C
authors: Grissi
authors: Instituto de Biología Agrícola de Mendoza (IBAM), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional de Cuyo (FCA-UNCuyo), Almirante Brown 500, M5528AHB, Chacras de Coria, Mendoza, Argentina.
authors: Claudio
authors: C
authors: Muñoz
authors: Plant Virology Laboratory, EEA Mendoza INTA, 5507, Luján de Cuyo, Mendoza, Argentina.
authors: Sebastian
authors: S
authors: Gomez-Talquenca
authors: Instituto de Ciencias de la Vid y del Vino (CSIC-Universidad de La Rioja-Gobierno de La Rioja), Logroño, Spain.
authors: José M
authors: JM
authors: Martínez-Zapater
authors: Instituto de Biología Agrícola de Mendoza (IBAM), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional de Cuyo (FCA-UNCuyo), Almirante Brown 500, M5528AHB, Chacras de Coria, Mendoza, Argentina. dlijavetzky@conicet.gov.ar.
authors: Diego
authors: D
authors: Lijavetzky
mesh_terms: D001483:Base Sequence; D002874:Chromosome Mapping; D032461:Chromosomes, Plant; D035264:Flowers / Q000254:growth & development*; D005638:Fruit / Q000254:growth & development*; D018506:Gene Expression Regulation, Plant / Q000502:physiology*; D008969:Molecular Sequence Data; D010802:Phylogeny; D010940:Plant Proteins / Q000235:genetics / Q000378:metabolism*; D016601:RNA-Binding Proteins / Q000235:genetics / Q000378:metabolism*; D013045:Species Specificity; D014157:Transcription Factors / Q000235:genetics / Q000378:metabolism*; D027843:Vitis / Q000235:genetics / Q000254:growth & development / Q000378:metabolism*
chemical_list: D010940:Plant Proteins; D016601:RNA-Binding Proteins; D014157:Transcription Factors; C415086:p67 protein, Raphanus sativus
keywords: AINTEGUMENTA; Berry size; Cell division; Gene expression; Ovary size; Vitis vinifera