Molecular Biology and Evolution, Vol 14, 1154-1166, Copyright © 1997 by Society for Molecular Biology and Evolution
E Douzery and E Randi
The mitochondrial control region (CR) sequence, also known as the D- loop,
has been determined for six Cervidae (Artiodactyla, Ruminantia): the red
and fallow deers (subfamily Cervinae), the brocket deer and two roe deers
(subfamily Odocoileinae), and the Chinese water deer (Hydropotinae). These
new sequences have been aligned with available cervid and bovid
orthologues. Comparative analyses indicate that the 5'- peripheral domain
exhibits a 75-bp length polymorphism near sequences associated with the
termination of the H-strand replication. The New World Odocoileinae possess
the longest cervid CR due to the presence of an additional 47-bp tandem
repeat, located in the 3'-peripheral domain, downstream of the initiation
site for H-strand replication (OH) and the first conserved sequence block
(CSB-1). This insertion represents a duplication spanning the OH to CSB-1
region and constitutes an exclusive synapomorphy for New World
Odocoileinae. Phylogenetic analyses of the complete CR support the
paraphyly of antlered deers due to the nesting of the antlerless Hydropotes
within Odocoileinae. Capreolus is the closest relative of Hydropotes, and
the divergence of this Old World Odocoileinae clade may have occurred
between 8.7 and 10.4 MYA. The conserved central domain of CR can be aligned
across ungulates and indicates the Pecora monophyly, their close
association with cetaceans, and the earlier emergence of suiformes.
ORIGINAL ARTICLE
The mitochondrial control region of Cervidae: evolutionary patterns and phylogenetic content
Laboratoire de Paleontologie, Paleobiologie et Phylogenie, CNRS, Universite Montpellier II, France. douzery@isem.univ-montp2.fr
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