منابع مشابه
Homoplasy and clade support.
Distinguishing phylogenetic signal from homoplasy (shared similarities among taxa that do not arise by common ancestry) is an implicit goal of any phylogenetic study. Large amounts of homoplasy can interfere with accurate tree inference, and it is expected that common measures of clade support, including bootstrap proportions and Bayesian posterior probabilities, should also be impacted to some...
متن کاملApparent similarity, underlying homoplasy: Morphology and molecular phylogeny of the North American clade of Manihot.
PREMISE OF THE STUDY Morphologically diverse clades are useful for detecting adaptive morphological evolution. Each of their variants may have evolved once or several times, suggesting that their repeated appearance may be due to environmental pressures. The North American Manihot species are an excellent system to detect possible adaptations and to assess the effect of mono- or polyphyly on cl...
متن کاملMicroRNAs support a turtle + lizard clade.
Despite much interest in amniote systematics, the origin of turtles remains elusive. Traditional morphological phylogenetic analyses place turtles outside Diapsida-amniotes whose ancestor had two fenestrae in the temporal region of the skull (among the living forms the tuatara, lizards, birds and crocodilians)-and allied with some unfenestrate-skulled (anapsid) taxa. Nonetheless, some morpholog...
متن کاملMicroRNAs support a turtle 1 lizard clade
Tyler R. Lyson1, Erik A. Sperling1,†, Alysha M. Heimberg2, Jacques A. Gauthier1, Benjamin L. King3 and Kevin J. Peterson2,* Department of Geology and Geophysics, Yale University, 210 Whitney Avenue, New Haven, CT 06511, USA Department of Biological Sciences, Dartmouth College, Hanover, NH 03755, USA Mount Desert Island Biological Laboratory, Salisbury Cove, ME 04672, USA *Author for corresponde...
متن کاملHomology, homoplasy, novelty, and behavior.
Richard Owen coined the modern definition of homology in 1843. Owen's conception of homology was pre-evolutionary, nontransformative (homology maintained basic plans or archetypes), and applied to the fully formed structures of animals. I sketch out the transition to an evolutionary approach to homology in which all classes of similarity are interpreted against the single branching tree of life...
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ژورنال
عنوان ژورنال: Systematic Biology
سال: 2009
ISSN: 1076-836X,1063-5157
DOI: 10.1093/sysbio/syp019