Definitions
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun systematics In
cladistics , the condition of beingmonophyletic , of including alldescendants from a givenancestral species .
Etymologies
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Examples
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That’s pretty interesting, though it has to be said that the statistical support for turiasaurian monophyly is not overwhelmingly impressive.
Happy Christmas, from gigantic Spanish sauropods... or, alas, poor ‘Angloposeidon’ Darren Naish 2006
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That’s pretty interesting, though it has to be said that the statistical support for turiasaurian monophyly is not overwhelmingly impressive.
Archive 2006-12-01 Darren Naish 2006
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This "monophyly" hypothesis (figure 4B-1) requires the same number of gene gains or losses as the "paraphyly" hypothesis sustained by our phylogeny (figure 4A), both being thus equally parsimonious.
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In any case, the possibility of multiple aboriginal cells does not survive into textbook neo-Darwinism, in which universal monophyly (a single Tree of Life, rooted in a common ancestor [cell]) is orthodoxy.
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You then cited publications where Woese, Doolittle, and others, affirm their faith in the monophyly of Eukarya, Metazoa, chimps and humans, whatever.
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You then cited publications where Woese, Doolittle, and others, affirm their faith in the monophyly of Eukarya, Metazoa, chimps and humans, whatever.
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(If one argues, as do Vestigian et al. 2006 about the genetic code, that a biological character has come to be multiple times independently, that character cannot be used to establish monophyly, in this instance, the monophyly of life on Earth.)
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Hence, Oleg draws a horizontal line to indicate the origin of Eukarya, but it is a line with no internal points, allowing him both to assert and deny the monophyly of the clade.
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But not species, unless you want to make monophyly a part of the species definition.
(UPDATED) Another half-brained science headline - The Panda's Thumb 2009
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And sure; biological species have no requirement of monophyly.
(UPDATED) Another half-brained science headline - The Panda's Thumb 2009
mollusque commented on the word monophyly
The property of being descended from a single ancestral form or stock. Compare polyphyly and monophylly.
April 6, 2008