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Updated: May 5, 2026
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Using Phylogenetic Analysis to Investigate Eukaryotic Gene Origin
Published on: August 14, 2018
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Univariate and multivariate analysis on phenotypic divergence in Phleum.
S Cavicchi1, D L Palenzona, C Pancaldi
1Istituto di Genetica, Universitá degli Studi, Bologna, Italy.
Summary
Genetic variability in Phleum ambiguum remained constant across environments, but phenotypic traits showed significant, irreversible changes due to environmental factors and cloning. This supports the phenotypic divergence hypothesis.
Area of Science:
- Plant genetics
- Ecology
- Evolutionary biology
Background:
- Understanding phenotypic plasticity is crucial for plant adaptation.
- Phleum ambiguum serves as a model for studying genetic and environmental influences on plant traits.
Purpose of the Study:
- To analyze phenotypic and genetic variability in Phleum ambiguum.
- To investigate the impact of different environments and vegetative propagation on plant traits.
- To assess the reversibility of environmentally induced phenotypic changes.
Main Methods:
- Vegetative propagation of Phleum ambiguum populations.
- Growth in diverse environmental conditions.
- Analysis of single characters and canonical analysis of multiple plant traits.
- Assessment of trait changes upon environmental transfer.
Main Results:
- Genetic variability (h(2)) remained constant across environments.
- Phenotypic variance and covariance were significantly affected by environmental conditions and successive clonations.
- Environmentally induced phenotypic changes were largely irreversible.
- Within-clone variability was influenced by environmental conditions.
Conclusions:
- Environmental factors and cloning induce significant, irreversible phenotypic changes in Phleum ambiguum.
- Results align with the phenotypic divergence hypothesis.
- Phenotypic plasticity plays a key role in adaptation to changing environments.
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