...Maria Dolores Gomez; Isabel Cored; Daniela Barro-Trastoy; Joaquin Sanchez-Matilla; Pablo Tornero; Miguel A. Perez-Amador ABSTRACT Human and animal nutrition is mainly based on seeds. Seed size is a key factor affecting seed yield and has thus been one of the primary objectives of plant breeders...

...Samuel W. H. Koh; Harold Nicholay Diaz-Ardila; Carlisle S. Bascom; Eduardo Berenguer; Gwyneth Ingram; Mark Estelle; Christian S. Hardtke ABSTRACT Seedling vigor is a key agronomic trait that determines juvenile plant performance. Angiosperm seeds develop inside fruits and are connected...

... process in plants, with a strong impact on the production of seeds. Ovule primordia initiation is controlled by a gene network, including components of the signaling pathways of auxin, brassinosteroids and cytokinins. By contrast, gibberellins (GAs) and DELLA proteins, the negative regulators of GA...

...Chloé Fourquin; Léna Beauzamy; Sophy Chamot; Audrey Creff; Justin Goodrich; Arezki Boudaoud; Gwyneth Ingram Seed development in angiosperms demands the tightly coordinated development of three genetically distinct structures. The embryo is surrounded by the endosperm, which is in turn enclosed...

...Léna Beauzamy; Chloé Fourquin; Nelly Dubrulle; Yann Boursiac; Arezki Boudaoud; Gwyneth Ingram In Arabidopsis , rapid expansion of the coenocytic endosperm after fertilisation has been proposed to drive early seed growth, which is in turn constrained by the seed coat. This hypothesis implies...

...Grégoire Denay; Audrey Creff; Steven Moussu; Pauline Wagnon; Johanne Thévenin; Marie-France Gérentes; Pierre Chambrier; Bertrand Dubreucq; Gwyneth Ingram In Arabidopsis seeds, embryo growth is coordinated with endosperm breakdown. Mutants in the endosperm-specific gene ZHOUPI ( ZOU ), which encodes...

.... , Yeung E. C. , Hashimoto M. , Fei J. , Harada C. M. , Munoz M. D. , et al . ( 2013 ). Comprehensive developmental profiles of gene activity in regions and subregions of the Arabidopsis seed . Proc. Natl. Acad. Sci. USA 110 , E435 – E444 . Berger F. , Vu M.T...

... and altered seed morphology. We hypothesize that in wild-type ovules a physical interaction between ATS and ETT allows these proteins to act in concert to define the boundary between integument primordia. We further show protein-protein interaction in yeast between ETT and KAN1, a paralog of ATS. Thus...

... that loss-of-function of the major DNA LIGASE I (AtLIG1) in Arabidopsis thaliana causes maternal effects in the endosperm, which is the seed tissue that nurtures embryo development. AtLIG1 expression is not imprinted and has a limited impact on imprinted gene expression. Genetic interaction analyses further...

...Anne-Elisabeth Guitton; Damian R. Page; Pierre Chambrier; Claire Lionnet; Jean-Emmanuel Faure; Ueli Grossniklaus; Frédéric Berger In higher plants, double fertilisation initiates seed development. One sperm cell fuses with the egg cell and gives rise to the embryo, the second sperm cell fuses...

... that nurtures the embryo in the seed initially develops as a syncytium. This syncytial phase ends with simultaneous partitioning of the multinucleate cytoplasm into individual cells, a process referred to as cellularisation. Our in vivo observations show that, as in cytokinesis, cellularisation...

... remain largely erect and the micropyle is not positioned near the funiculus. *Author for correspondence (e-mail: [email protected] ) 11 6 2002 © 2002. 2002 YABBY Reproductive development Seed Polarity Arabidopsis thaliana The developmental processes...

... on chromosomes contributed by the mother while another is silenced on paternal chromosomes. Therefore, each genome contributes a different set of active alleles to the offspring, which develop abnormally if the parental genome balance is disturbed. In Arabidopsis , seeds inheriting extra maternal genomes show...