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1. Of or relating to a group of taxa that includes the common ancestor of all the members as well as all descendants of that ancestor.
2. Of or derived from one stock or source.

mon′o·phy·let′ic·al·ly adv.
mon′o·phy′ly (mŏn′ə-fī′lē, mə-nŏf′ə-lē) adv.


1. (Biology) relating to or characterized by descent from a single ancestral group of animals or plants
2. (Biology) (of animals or plants) of or belonging to a single stock
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References in periodicals archive ?
The presence of the B1 element in all the analyzed members of both rodent suborders, and the lack of B1 in all other analyzed mammalian orders, supports a monophyletic evolution of rodents.
Why should around a thousand monophyletic drosophilines occupy the Hawaiian Islands whereas just a few dozen have evolved in the Caribbean?
emarginata to the north of PC should be monophyletic and derived from those to the south of PC [ILLUSTRATION FOR FIGURE 1A OMITTED].
Provided that each object in the tree has a unique immediate ancestor - that is, provided that there is branching without reticulation - we can define a taxonomic unit as a monophyletic unit, a group composed of an ancestor and all of its descendants.
We also described the phylogenetic and phylogeographic characteristics of the first DENV-1 outbreak in 2009; the circulating virus clustered in a monophyletic group within genotype V, which is the most predominant DENV-1 genotype in the Americas (10).
It was observed that all the varieties in this cluster are genetically associated with each with high bootstrap value (100 %) providing a strong support for their monophyletic origin.
Although the 5 genera of capromyids form a robustly monophyletic group, they were recovered as the uncertain sister to a group of Brazilian echimyids, possibly rendering Echimyidae paraphyletic.
These molecular phylogenetic studies have identified a sixth case in which an assemblage of four endemic genera [Coeloneurum (unispecific), Espadaea (unispecific), Goetzea (two species), and Henoonia (unispecific)] form a monophyletic group within the Solanaceae that is recognized as an important part of the subfamily Goetzeoideae (Olmstead et al.
The current study is based on a phylogeographic analysis of the 2 species in the South Atlantic, with the objective of confirming their monophyletic status and the limits of their geographical distribution in this region.
rotundata) is well supported as monophyletic (Bootstrap (BS) = 99).
For example, in 1994, Distel and Cavanaugh showed that all sulfur-oxidizing symbionts from diverse host animals form a distinct monophyletic Glade (Appendix Fig.