Light quantity and quality induce shade-avoiding plasticity in a marine macroalga

Monro, K. and Poore, A. G. B. (2005) Light quantity and quality induce shade-avoiding plasticity in a marine macroalga. Journal of Evolutionary Biology, 18 2: 426-435. doi:10.1111/j.1420-9101.2004.00826.x

Author Monro, K.
Poore, A. G. B.
Title Light quantity and quality induce shade-avoiding plasticity in a marine macroalga
Journal name Journal of Evolutionary Biology   Check publisher's open access policy
ISSN 1010-061X
Publication date 2005-03
Year available 2004
Sub-type Article (original research)
DOI 10.1111/j.1420-9101.2004.00826.x
Volume 18
Issue 2
Start page 426
End page 435
Total pages 10
Place of publication Oxford, U.K.
Publisher Blackwell Science
Language eng
Subject 06 Biological Sciences
0602 Ecology
Formatted abstract
Light-induced plasticity in plant morphology is considered adaptive in terrestrial habitats that vary in light, but remains unexplored for marine habitats. This is despite similar modes of growth, development and photosynthetic equipment in terrestrial and marine photoautotrophs and similarly dynamic light environments. We tested whether manipulations of light quantity and quality induce morphological plasticity in the marine macroalga, Asparagopsis armata. Using multivariate analyses (principal components analyses and multivariate analyses of covariance), we show that correlated morphological traits underlie a fundamental growth strategy characterized by the production of phalanx and guerrilla phenotypes in environments that mimic light and shade respectively. This foraging response is not under simple genetic or environmental control, but influenced by interactions between genotype and environment. Evidence of plasticity and genetic variation in plasticity in a marine modular organism generates additional, testable hypotheses on the ecological consequences of variation in growth form that may further explain the evolution of plasticity. © 2010 European Society for Evolutionary Biology.
Keyword Evolution
Growth strategy
Modular organisms
Phenotypic plasticity
Q-Index Code C1
Additional Notes Published Online: 27 Oct 2004

Document type: Journal Article
Sub-type: Article (original research)
Collections: Excellence in Research Australia (ERA) - Collection
School of Biological Sciences Publications
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Citation counts: TR Web of Science Citation Count  Cited 28 times in Thomson Reuters Web of Science Article | Citations
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