| |
front page
glossary
2008
2007
2006
2005
2004
2003
2002
2001
2000
1999
1998
1997
1996
1995
1994
1993
1992
1991
1990
80s
70s
60s
50s
40s
30s
20s
10s
|
-
M Averof, R Dawes, D Ferrier (1996),
"Diversification of arthropod Hox genes
as a paradigm for the evolution of gene functions",
Cell. Dev. Biology, 7:539-551.
-
IP Blair, J Nash, MJ Gordon, and GA Nicholson (1996),
"Prevalence and origin of de novo duplications in Charcot-Marie-Tooth
disease type 1A: first report of a de novo duplication with a maternal origin",
American Journal of Human Genetics, 58(3):472-476.
-
J Garcia-Fernandez, PW Holland (1996),
"Amphioxus Hox genes: insights into evolution and development",
International Journal of Development Biology, (Suppl 1):71S-72S.
-
R Guigo, I Muchnik, TF Smith (1996),
"Reconstruction of ancient molecular phylogeny",
Molecular Phylogenetics and Evolution, 6:189-213.
[ abstract]
abstract:
Support for contradictory phylogenies is often obtained when molecular
sequence data from different genes is used to reconstruct phylogenetic
histories. Contradictory phylogenies can result from many data anomalies
including unrecognized paralogy. Paralogy, defined as the reconstruction
of a phylogenetic tree from a mixture of genes generated by duplications,
has generally not been formally included in phylogenetic reconstructions.
Here we undertake the task of reconstructing a single most likely
evolutionary relationship among a range of taxa from a large set of
apparently inconsistent gene trees. Under the assumption that differences
among gene trees can be explained by gene duplications, and consequent
losses, we have developed a method to obtain the global phylogeny
minimizing the total number of postulated duplications and losses and to
trace back such individual gene duplications to global genome
duplications. We have used this method to infer the most likely
phylogenetic relationship among 16 major higher eukaryotic taxa from the
sequences of 53 different genes. Only five independent genome
duplication events need to be postulated in order to explain the
inconsistencies among these trees.
-
Peter WH Holland, Jordi G Garcia-Fernandez (1996),
"Hox genes and chordate evolution",
Developmental Biology, 173:382-395.
[ abstract]
[Comments by Sidow (1996):
A comprehensive review of Hox cluster evolution from the authors
who showed that amphioxus has a single cluster. Expression patterns
of the AmphiHox genes in development indicates that the conserved
and perhaps ancestral expression domain of the chordate Hox genes
is in the neurectoderm and not in the mesoderm. Furthermore, the authors
convincingly make the point that expression of orthologous marker
genes - in this case, expression of amphihox 3 in the amphioxus
nerve cord and expression of its vertebrate orthologs in the
developing hindbrain-can be used to establish homology of developing
tissues in the absence of obvious morphological similarity.
]
-
M Kasahara, M Hayashi, K Tanaka, H Inoko, K Sugaya, T Ikemura, T Ishibashi (1996),
"Chromosomal localization of the proteasome Z subunit gene reveals an
ancient chromosomal duplication involving the major histocompatibility complex",
Proceedings of National Academy of Sciences, 93(17):9096-9101.
-
SE Kearsey, D Maiorano, EC Holmes, IT Todorov (1996),
"The role of MCM proteins in the cell cycle control of genome duplication",
Bioessays, 18:183-190.
-
AC Sharman, PWH Holland (1996),
"Conservation, duplication, and divergence of developmental
genes during chordate evolution",
Netherlands Journal of Zoology, 46:47-67.
-
Shoemaker RC, Polzin K, Labate J, Specht J,
Brummer EC, Olson T, Young N, Concibido V,
Wilcox J, Tamulonis JP, Kochert G, Boerma HR (1996),
"Genome duplication in soybean (Glycine subgenus soja)",
Genetics, 144(1):329-338.
[abstract]
-
A Sidow (1996),
"Gen(om)e duplications in the evolution of early vertebrates",
Current Opinion in Genetics and Development, 6:715-722.
abstract:
Phylogenetic analyses and sequence surveys of
developmental regulator gene families indicate that
two large-scale gene duplications, most likely
genome duplications, occurred in ancestors of
vertebrates. Relaxed constraints allowed duplicated
and thus redundant genes to diverge in a two stage
mechanism. Neutral changes dominated at first but
then positively selected regulatory changes
evolved the novel and increasingly complex
vertebrate developmental program.
[
html
]
|