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Molecular Biology and Evolution, Vol 12, 823-833, Copyright © 1995 by Society for Molecular Biology and Evolution


ORIGINAL ARTICLE

Phylogenetic test of the molecular clock and linearized trees

N Takezaki, A Rzhetsky and M Nei
Institute of Molecular Evolutionary Genetics, Pennsylvania State University, University Park 16802, USA.

To estimate approximate divergence times of species or species groups with molecular data, we have developed a method of constructing a linearized tree under the assumption of a molecular clock. We present two tests of the molecular clock for a given topology: two-cluster test and branch-length test. The two-cluster test examines the hypothesis of the molecular clock for the two lineages created by an interior node of the tree, whereas the branch-length test examines the deviation of the branch length between the tree root and a tip from the average length. Sequences evolving excessively fast or slow at a high significance level may be eliminated. A linearized tree will then be constructed for a given topology for the remaining sequences under the assumption of rate constancy. We have used these methods to analyze hominoid mitochondrial DNA and drosophilid Adh gene sequences.
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PNAS, May 28, 2002; 99(11): 7508 - 7513.
[Abstract] [Full Text] [PDF]


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J HeredHome page
M. Nei and G. V. Glazko
The Wilhelmine E. Key 2001 Invitational Lecture. Estimation of Divergence Times for a Few Mammalian and Several Primate Species
J. Hered., May 1, 2002; 93(3): 157 - 164.
[Abstract] [Full Text] [PDF]


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Mol Biol EvolHome page
M. W. Gaunt and M. A. Miles
An Insect Molecular Clock Dates the Origin of the Insects and Accords with Palaeontological and Biogeographic Landmarks
Mol. Biol. Evol., May 1, 2002; 19(5): 748 - 761.
[Abstract] [Full Text] [PDF]


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Mol Biol EvolHome page
Y. Suzuki and M. Nei
Origin and Evolution of Influenza Virus Hemagglutinin Genes
Mol. Biol. Evol., April 1, 2002; 19(4): 501 - 509.
[Abstract] [Full Text] [PDF]


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Mol Biol EvolHome page
D. L. Rowe and R. L. Honeycutt
Phylogenetic Relationships, Ecological Correlates, and Molecular Evolution Within the Cavioidea (Mammalia, Rodentia)
Mol. Biol. Evol., March 1, 2002; 19(3): 263 - 277.
[Abstract] [Full Text] [PDF]


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Mol Biol EvolHome page
M. J. Sanderson
Estimating Absolute Rates of Molecular Evolution and Divergence Times: A Penalized Likelihood Approach
Mol. Biol. Evol., January 1, 2002; 19(1): 101 - 109.
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ScienceHome page
W. J. Murphy, E. Eizirik, S. J. O'Brien, O. Madsen, M. Scally, C. J. Douady, E. Teeling, O. A. Ryder, M. J. Stanhope, W. W. de Jong, et al.
Resolution of the Early Placental Mammal Radiation Using Bayesian Phylogenetics
Science, December 14, 2001; 294(5550): 2348 - 2351.
[Abstract] [Full Text] [PDF]


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Mol Biol EvolHome page
A. D. Briscoe
Functional Diversification of Lepidopteran Opsins Following Gene Duplication
Mol. Biol. Evol., December 1, 2001; 18(12): 2270 - 2279.
[Abstract] [Full Text] [PDF]


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J HeredHome page
R. L. Stauffer, A. Walker, O. A. Ryder, M. Lyons-Weiler, and S. B. Hedges
Human and Ape Molecular Clocks and Constraints on Paleontological Hypotheses
J. Hered., November 1, 2001; 92(6): 469 - 474.
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Mol Biol EvolHome page
E. Haring, L. Kruckenhauser, A. Gamauf, M. J. Riesing, and W. Pinsker
The Complete Sequence of the Mitochondrial Genome of Buteo buteo (Aves, Accipitridae) Indicates an Early Split in the Phylogeny of Raptors
Mol. Biol. Evol., October 1, 2001; 18(10): 1892 - 1904.
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ScienceHome page
D. S. Heckman, D. M. Geiser, B. R. Eidell, R. L. Stauffer, N. L. Kardos, and S. B. Hedges
Molecular Evidence for the Early Colonization of Land by Fungi and Plants
Science, August 10, 2001; 293(5532): 1129 - 1133.
[Abstract] [Full Text] [PDF]


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Am. J. Bot.Home page
M. J. Sanderson and J. A. Doyle
Sources of error and confidence intervals in estimating the age of angiosperms from rbcL and 18S rDNA data
Am. J. Botany, August 1, 2001; 88(8): 1499 - 1516.
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J. Virol.Home page
L. Zsak, Z. Lu, T. G. Burrage, J. G. Neilan, G. F. Kutish, D. M. Moore, and D. L. Rock
African Swine Fever Virus Multigene Family 360 and 530 Genes Are Novel Macrophage Host Range Determinants
J. Virol., April 1, 2001; 75(7): 3066 - 3076.
[Abstract] [Full Text]


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Mol Biol EvolHome page
C. Su and M. Nei
Evolutionary Dynamics of the T-Cell Receptor VB Gene Family as Inferred from the Human and Mouse Genomic Sequences
Mol. Biol. Evol., April 1, 2001; 18(4): 503 - 513.
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Proc. Natl. Acad. Sci. USAHome page
A. Termonia, T. H. Hsiao, J. M. Pasteels, and M. C. Milinkovitch
Feeding specialization and host-derived chemical defense in Chrysomeline leaf beetles did not lead to an evolutionary dead end
PNAS, March 16, 2001; (2001) 61034598.
[Abstract] [Full Text]



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