Abstract

The evolution of seeds defines a remarkable landmark in the history of land plants. A developing seed contains three genetically distinct structures: the embryo, the nourishing tissue, and the seed coat. While fertilization is necessary to initiate seed development in most plant species, apomicts have evolved mechanisms allowing seed formation independently of fertilization. Despite their socio-economical relevance, the molecular mechanisms driving seed development have only recently begun to be understood. Here we review the current knowledge on the role of the hormone auxin for the initial development of the three seed structures and as a trigger of fertilization-independent seed development.

Keywords

auxin; seed; endosperm; seed coat; apomixis; Polycomb group

Published in

Genes and Development
2018, Volume: 32, number: 7-8, pages: 479-490
Publisher: COLD SPRING HARBOR LAB PRESS, PUBLICATIONS DEPT

SLU Authors

• Köhler, Claudia

  • Department of Plant Biology, Swedish University of Agricultural Sciences
    

• Figueiredo, Duarte

  • Department of Plant Biology, Swedish University of Agricultural Sciences
    

UKÄ Subject classification

Genetics


Publication identifier

DOI: https://doi.org/10.1101/gad.312546.118

Permanent link to this page (URI)

https://res.slu.se/id/publ/95120