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Title: Molecular Responses to Climate and Resource Availability: Emerging Evidence from Systems Biology Research in Populus.

The emergence of Populus as a model system for tree biology continues to be driven by a community of scientists dedicated to developing the resources needed to undertake genetic and functional genomic studies in this genus. As a result, understanding the molecular processes that underpin the growth and development of cottonwood, aspen, and hybrid poplar has steadily increased over the last several decades. Recently, our ability to examine the basic mechanisms whereby trees respond to a changing climate and resource limitations has benefitted greatly from the sequencing of the P. trichocarpa genome. This landmark event has laid a solid foundation upon which tree biologists can now explore the genome-wide effects of temperature, water and nutrient limitations on processes that govern the growth and development of some of the longest living and tallest growing organisms on Earth. Although the challenges likely to be encountered by scientists who work with trees are many, recent literature provides a number of examples whereby a systems approach, one that focuses on transcriptomic, proteomic, and metabolomic analyses is beginning to provide insights into the molecular-scale response of poplars to their climatic and edaphic environment.
Authors:
 [1] ;  [1] ;  [2]
  1. ORNL
  2. University of Florida
Publication Date:
OSTI Identifier:
966738
DOE Contract Number:
DE-AC05-00OR22725
Resource Type:
Journal Article
Resource Relation:
Journal Name: Critical Reviews in Plant Science; Journal Volume: 28
Research Org:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org:
USDOE Office of Science (SC)
Country of Publication:
United States
Language:
English
Subject:
59 BASIC BIOLOGICAL SCIENCES; AVAILABILITY; BIOLOGY; CLIMATES; FUNCTIONALS; GENETICS; NUTRIENTS; POPLARS; TREES; WATER; Genomics; molecular biology; poplar; populus; trees