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Many Facets of Dynamic Plasticity in Plants.

Authors
  • Yang, Xiaodong1
  • Mackenzie, Sally A1
  • 1 Departments of Biology and Plant Science, The Pennsylvania State University, University Park, Pennsylvania 16802, USA.
Type
Published Article
Journal
Cold Spring Harbor Perspectives in Biology
Publisher
Cold Spring Harbor Laboratory
Publication Date
Oct 01, 2019
Volume
11
Issue
10
Identifiers
DOI: 10.1101/cshperspect.a034629
PMID: 31138545
Source
Medline
Language
English
License
Unknown

Abstract

The evolutionary processes that transitioned plants to land-based habitats also incorporated a multiplicity of strategies to enhance resilience to the greater environmental variation encountered on land. The sensing of light, its quality, quantity, and duration, is central to plant survival and, as such, serves as a central network hub. Similarly, plants as sessile organisms that can encounter isolation must continually assess their reproductive options, requiring plasticity in propagation by self- and cross-pollination or asexual strategies. Irregular fluctuations and intermittent extremes in temperature, soil fertility, and moisture conditions have given impetus to genetic specializations for network resiliency, protein neofunctionalization, and internal mechanisms to accelerate their evolution. We review some of the current advancements made in understanding plant resiliency and phenotypic plasticity mechanisms. These mechanisms incorporate unusual nuclear-cytoplasmic interactions, various transposable element (TE) activities, and epigenetic plasticity of central gene networks that are broadly pleiotropic to influence resiliency phenotypes. Copyright © 2019 Cold Spring Harbor Laboratory Press; all rights reserved.

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