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Phylogenetic analysis using collections material: interpreting trait evolution by comparison of morphological and molecular genetic hypotheses

Author(s): Christopher Ivey

California State University, Chico

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Summary:
Exercise spans two weeks, includes homework, and involves some groups of animals as well as plants. Emphasizes re-interpretation of morphological trait evolution following molecular genetic phylogeny reconstruction

Description

This two-week exercise is modified from Gibson (2018) and others to include a preliminary analysis based on the classical "caminalcules" exercise, and includes several groups of preserved animal taxa as well as living plants. A homework exercise prepares students for sequence alignment and molecular genetic phylogeny reconstruction. Morphological traits scored during the first week are mapped onto the molecular phylogeny during the second week and implications for trait evolution (e.g., types of homoplasy implied) are emphasized.

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