View in EDS

Genomic imprinting in an early‐diverging angiosperm reveals an ancient mechanism for seed initiation in flowering plants.

Saved in:
Bibliographic Details
Title: Genomic imprinting in an early‐diverging angiosperm reveals an ancient mechanism for seed initiation in flowering plants.
Authors: Florez‐Rueda, Ana M.1,2,3 (AUTHOR) florezrueda@mpimp-golm.mpg.de, Scharmann, Mathias2 (AUTHOR), de Souza, Leonardo P.1 (AUTHOR), Fernie, Alisdair R.1 (AUTHOR), Bachelier, Julien B.4 (AUTHOR), Figueiredo, Duarte D.1 (AUTHOR) figueiredo@mpimp-golm.mpg.de
Source: New Phytologist. Feb2026, Vol. 249 Issue 4, p1580-1591. 12p.
Subjects: Auxin, Seed development, Phanerogams, Angiosperms, Genomic imprinting, Endosperm, Fertilization (Biology), Phylogeny
Abstract: The article focuses on the role of auxin, a plant hormone, in seed development across angiosperms and gymnosperms, highlighting its evolutionary significance. It presents evidence that post-fertilization auxin production is a conserved paternal trigger for developing seed accessory structures in angiosperms, while in gymnosperms, auxin production is under maternal genetic control. The study proposes that the coupling of seed development to fertilization in angiosperms likely coincided with changes in the expression of auxin biosynthesis genes, contributing to the emergence of the endosperm, a key feature in the success of flowering plants. The findings suggest that auxin's role in seed development predates the evolution of angiosperms, indicating a shared evolutionary mechanism in seed development among spermatophytes. [Extracted from the article]
Copyright of New Phytologist is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
Description
Abstract:The article focuses on the role of auxin, a plant hormone, in seed development across angiosperms and gymnosperms, highlighting its evolutionary significance. It presents evidence that post-fertilization auxin production is a conserved paternal trigger for developing seed accessory structures in angiosperms, while in gymnosperms, auxin production is under maternal genetic control. The study proposes that the coupling of seed development to fertilization in angiosperms likely coincided with changes in the expression of auxin biosynthesis genes, contributing to the emergence of the endosperm, a key feature in the success of flowering plants. The findings suggest that auxin's role in seed development predates the evolution of angiosperms, indicating a shared evolutionary mechanism in seed development among spermatophytes. [Extracted from the article]
ISSN:0028646X
DOI:10.1111/nph.70776