homoplasy


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homoplasy

[′hä·mə‚plā·sē]
(biology)
Correspondence between organs or structures in different organisms acquired as a result of evolutionary convergence or of parallel evolution.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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A molecular phylogeny of camaenid land snails from north-western Australia unravels widespread homoplasy in morphological characters (Gastropoda, Helicoidea).
Sequencing identified evidence of allelic homoplasy in locus Ccmic9.
This taxonomic disorder still continues in this group partly because there is no robust phylogenetic tree that enables to disentangle "genuine" relationships from homoplasy in morphology.
2002: Homoplasy and mutation model at microsatellite loci and their consequences for population genetics analysis.
The values are: a Consistency index of CI=0.8947, a Homoplasy index of HI=0.1053, a Retention index of RI=0.9694, a Rescaled consistency index of RC=0.8673, and a tree length of 114.
Thus, microsatellite markers can reflect recent (within the last 10,000 years) and almost contemporaneous events, but increases in homoplasy associated with microsatellites reduce their ability to capture older demographic events (Hard and Clark 2007, Hughes 2010).
Phylogenetic analysis suggests that most tadpole diversity was generated relatively early in the evolutionary history of frogs and that subsequent changes were relatively minor and often involved morphological convergence or reversals (homoplasy; Roelants et al., 2011).
Quantification of homoplasy for nucleotide transitions and transversions and a reexamination of assumptions in weighted phylogenetic analysis.