IBAM   22618
INSTITUTO DE BIOLOGIA AGRICOLA DE MENDOZA
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
MOLECULARAND GENETIC ANALYSIS OFGRAPEVINE BERRY SIZE DETERMINATION. THE AINTEGUMENTA GENE FAMILY
Autor/es:
GRISSI C, MUÑOZ CJ , CHIALVA CS , GOMEZ TALQUENCA S , LIJAVETZKY D
Lugar:
La Serena
Reunión:
Congreso; The Ninth International Symposium on Grapevine, Physiology and Biotechnology; 2013
Resumen:
Fruit size is a highly important trait for most fruit and vegetable
crops. This trait has been a main selection target from the beginning
of the modern agriculture. Even though its determination is
influenced by the cultural practices, several genes have been
identified controlling fruit size and shape. The AINTEGUMENTA
(ANT) gene is a member of the AP2/ERF family of transcription
factor genes. In ovules of the ant mutant, integuments do not develop
and megasporogenesis is blocked. Based on these results, it is
believed that ANT regulates cell proliferation and organ growth by
maintaining the meristematic competence of cells during
organogenesis. On the other hand, the characterization in
Arabidopsis and other plant species of seven closely related genes
(ANT-like genes o AIL) also suggested their participation in
specification of meristematic or division-competent states.
Using the ANT and AIL known sequences we identified all the
grapevine (Vitis vinifera) putative ortholog genes. After the aligned
of their sequences we determined the phylogenetic relationship
respect all the ANT and AIL sequences from Arabidopsis, rice and
poplar. We designed qRT-PCR specific primers for all grapevine
ANT/AIL genes and we analyzed their expression patterns in
different tissues and stages of the plant with the aim of defining their
putative role in the flower and fruit size determination