Article
Shared patterns of segment size development in trilobites and vertebrates.
Evolution; international journal of organic evolution - 1 Jun 2023
Nikolic Mark C, Hopkins Melanie J, Evans Alistair R
Abstract excerpt
The relative sizes of body segments are a major determinant of the shape and functionality of an animal. Developmental biases affecting this trait can therefore have major evolutionary implications. In vertebrates, a molecular activator/inhibitor mechanism, known as the inhibitory cascade (IC), produces a simple and predictable pattern of linear relative size along successive segments. The IC model is considered...
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