In mammals and seed plants, a subset of genes is regulated by genomic imprinting where
an allele’s activity depends on its parental origin. The parental conflict theory suggests that …

Directional transport of the phytohormone auxin is required for the establishment and
maintenance of plant polarity, but the underlying molecular mechanisms have not been fully …

Defining the contributions and interactions of paternal and maternal genomes during embryo
development is critical to understand the fundamental processes involved in hybrid vigor, …

Plants and animals reproduce sexually via specialized, highly differentiated gametes. Yet,
gamete formation drastically differs between the two kingdoms. In flowering plants, the …

The endosperm is a seed tissue unique to flowering plants. Due to its central role in nourishing
and protecting the embryo, endosperm development is subject to parental conflicts and …

The eukaryotic cell nucleus is a central organelle whose architecture determines genome
function at multiple levels. Deciphering nuclear organizing principles influencing cellular …

Whether deposited maternal products are important during early seed development in
flowering plants remains controversial. Here, we show that RNA interference–mediated …

The life cycle of flowering plants is marked by several post-embryonic developmental transitions
during which novel cell fates are established. Notably, the reproductive lineages are first …

The evolutionary origin of double fertilization and the resultant endosperm tissue in flowering
plants remains a puzzle, despite over a century of research. The recent resurgence of …

The imprinted Arabidopsis Polycomb group (PcG) gene MEDEA (MEA), which is homologous
to Enhancer of Zeste [E(Z)], is maternally required for normal seed development. Here we …