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Annotation of Plant Gene Function via Combined Genomics, Metabolomics and Informatics
Published on: June 17, 2012
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Understanding developmental and adaptive cues in pine through metabolite profiling and co-expression network
Rafael A Cañas1, Javier Canales1, Carmen Muñoz-Hernández2
1Departamento de Biología Molecular y Bioquímica, Facultad de Ciencias, Universidad de Málaga, Campus Universitario de Teatinos s/n, 29071 Málaga, Spain.
Journal of Experimental Botany
|April 16, 2015
Summary
Maritime pine trees adapt to seasonal changes by adjusting their metabolism and gene expression. Environmental factors like temperature influence gene activity, revealing new insights into conifer adaptation strategies.
Area of Science:
- Plant Biology
- Ecology
- Genomics
Background:
- Conifers, such as pines and spruces, are vital evergreen trees with significant economic and ecological roles.
- These long-lived trees must continually adapt to seasonal changes, environmental stresses, and coordinate these responses with their internal development.
Purpose of the Study:
- To investigate the seasonal regulation of maritime pine (Pinus pinaster) growth and adaptation.
- To understand how environmental factors influence metabolite and transcriptomic profiles in conifer needles.
Main Methods:
- Analysis of metabolite and transcriptomic profiles from maritime pine needles over one year.
- Correlation of molecular data with environmental parameters like temperature and rainfall.
- Gene network analysis to identify regulatory relationships.
Main Results:
- Seasonal metabolite profiles were primarily influenced by needle age and winter acclimation.
- Transcriptomic profiles were mainly driven by climatic factors, with strong correlations to temperature for photosynthesis and winter acclimation genes.
- Gene network analysis identified 14 modules linked to development and environmental adaptation, including novel Myb transcription factors.
Conclusions:
- Environmental factors, particularly temperature, regulate the maritime pine transcriptome to fine-tune metabolic responses during development.
- This study provides integrated data on seasonal regulation in maritime pines, enhancing understanding of conifer adaptive mechanisms.
