In phylogenetics, a plesiomorphy ("near form") and symplesiomorphy are synonyms for an ancestral character shared by all members of a clade, which does...
6 KB (742 words) - 20:53, 4 October 2024
with apomorphies and synapomorphies. Symplesiomorphy – an ancestral trait shared by two or more taxa. Plesiomorphy – a symplesiomorphy discussed in reference...
15 KB (1,438 words) - 03:38, 11 August 2024
to a given taxon or group. Symplesiomorphy – an ancestral trait shared by two or more taxa. Plesiomorphy – a symplesiomorphy discussed in reference to...
12 KB (1,193 words) - 13:47, 23 September 2024
adaptive (e.g., as in non-vascular ("lower") and vascular ("higher") plants). The terms "plesiomorphy" and "apomorphy" are typically used in the technical...
8 KB (1,068 words) - 21:49, 2 February 2023
Cladistics (section Notes and references)
cold-bloodedness is a plesiomorphy, inherited from the common ancestor of traditional reptiles and birds, and thus a symplesiomorphy of turtles, snakes and crocodiles...
53 KB (5,611 words) - 21:14, 17 October 2024
Cladogram (section Plesiomorphies and synapomorphies)
and Neighbor-Joining, group by overall similarity, and treat both synapomorphies and symplesiomorphies as evidence of grouping, The resulting diagrams are...
20 KB (2,450 words) - 13:26, 23 September 2024
Phylogenetic signal (section Aim and methodology)
Phylogenetic signal is an evolutionary and ecological term, that describes the tendency or the pattern of related biological species to resemble each...
13 KB (1,423 words) - 14:51, 23 September 2024
more technical term plesiomorphy. annidation anticipation A phenomenon by which the symptoms of a genetic disorder become apparent (and often more severe)...
149 KB (15,979 words) - 22:20, 17 October 2024
Paraphyly (category Harv and Sfn no-target errors)
Paraphyletic groups are identified by a combination of synapomorphies and symplesiomorphies. If many subgroups are missing from the named group, it is said...
39 KB (3,836 words) - 05:06, 22 July 2024