Article
Segmentation: mono- or polyphyletic?
The International journal of developmental biology - 1 Jan 2003
Seaver Elaine C
Abstract excerpt
Understanding the evolutionary origins of segmented body plans in the metazoa has been a long-standing fascination for scientists. Competing hypotheses explaining the presence of distinct segmented taxa range from the suggestion that all segmentation in the metazoa is homologous to the proposal that segmentation arose independently many times, even within an individual clade or species. A major new source of...
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