synapomorphic trait
Quick Summary
A synapomorphic trait is a characteristic shared by two or more related taxonomic groups that evolved from a common ancestral form. These traits are crucial in evolutionary biology and taxonomy for understanding relationships between organisms.12
In the study of evolution, identifying synapomorphies helps in reconstructing evolutionary trees. These trees illustrate how species or groups of organisms are related through shared ancestry. For example, retractable claws are a synapomorphic trait shared by domestic cats, tigers, and leopards, indicating their common ancestry after their lineage diverged from that of dogs and wolves.3
Synapomorphies are distinct from autapomorphies, which are traits unique to a single taxonomic group. By analyzing synapomorphic traits, scientists can infer evolutionary history and classify organisms based on their shared derived characteristics.423
Ask Britannica AI about this topic
Britannica doesn't have a full article on this topic, so we've curated a list of our relevant coverage.
phylogenyPhenetics versus cladistics…(or derived) characteristics are called synapomorphies.
Read More…(or derived) characteristics are called synapomorphies.
Read More
philosophy of biologyTaxonomy…(or derived) characteristics, called “synapomorphies.” Suppose, for example, that there is an original species marked by character A, and from this three species eventually evolve. The original species first breaks into two successor groups, in one of which A evolves into the character a; this successor group then breaks…
Read More…(or derived) characteristics, called “synapomorphies.” Suppose, for example, that there is an original species marked by character A, and from this three species eventually evolve. The original species first breaks into two successor groups, in one of which A evolves into the character a; this successor group then breaks…
Read More
philosophy of biologyTaxonomy…more general method of identifying synapomorphies is the comparative method, in which one compares organisms against an outgroup, which is known to be related to the organisms—but not as closely to them as they are to each other. If the outgroup has character A, and, among three related species, two…
Read More…more general method of identifying synapomorphies is the comparative method, in which one compares organisms against an outgroup, which is known to be related to the organisms—but not as closely to them as they are to each other. If the outgroup has character A, and, among three related species, two…
Read More
