Journal ArticleDOI
Chromosomal evolution of the Canidae. II. Divergence from the primitive carnivore karyotype.
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TLDR
The history of chromosomal rearrangements within the Canidae family is presented based on the assumption that a metacentric-dominated karyotype is primitive for the group.Abstract:
The Giemsa-banding patterns of chromosomes from the arctic fox (Alopex lagopus), the red fox (Vulpes vulpes), the kit fox (Vulpes macrotis), and the raccoon dog (Nyctereutes procyonoides) are compared. Despite their traditional placement in different genera, the arctic fox and the kit fox have an identical chromosome morphology and G-banding pattern. The red fox has extensive chromosome arm homoeology with these two species, but has only two entire chromosomes in common. All three species share some chromosomes with the raccoon dog, as does the high diploid-numbered grey wolf (Canis lupus, 2n = 78). Moreover, some chromosomes of the raccoon dog show partial or complete homoeology with metacentric feline chromosomes which suggests that these are primitive canid chromosomes. We present the history of chromosomal rearrangements within the Canidae family based on the assumption that a metacentric-dominated karyotype is primitive for the group.read more
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Journal ArticleDOI
Building large trees by combining phylogenetic information: a complete phylogeny of the extant Carnivora (Mammalia).
TL;DR: A complete phylogeny for all 271 extant species of the Garnivora is derived, providing a ‘consensus’ estimate of carnivore phylogeny and showing that some lineages within the Mustelinae and Canidae contain significantly more species than expected for their age, illustrating the tree's utility for studies of macroevolution.
Journal ArticleDOI
A complete comparative chromosome map for the dog, red fox, and human and its integration with canine genetic maps.
Fengtang Yang,Patricia Caroline Mary O’Brien,B.S. Milne,Alexander S. Graphodatsky,Nita Solanky,Vladimir A. Trifonov,Willem Rens,David R. Sargan,Malcolm A. Ferguson-Smith +8 more
TL;DR: The dog-fox map and DAPI banding comparison demonstrate that the remarkable karyotype differences between fox and dog are due to 26 chromosomal fusion events and 4 fission events and are proposed that the more easily karyotyped fox chromosomes can be used as a common reference and control system for future gene mapping in the DogMap project and CGH analysis of canine tumor DNA.
Journal ArticleDOI
The canine genome
TL;DR: It is suggested that given these resources and the unique characteristics of breeds, that the dog is a uniquely valuable resource for studying the genetic basis of complex traits.
Journal ArticleDOI
Phylogenetic relationships, evolution, and genetic diversity of the domestic dog
TL;DR: The results do not support a New World domestication of dogs nor a close association of the Xoloitzcuintli with other hair-less breeds of dogs, but mitochondrial DNA analysis suggests a more ancient origin of dogs than has been indicated by the fossil record.
Journal ArticleDOI
Molecular evolution of the dog family
TL;DR: High rates of gene flow among populations within some species, such as the coyote and gray wolf, have suppressed genetic divergence, and where these species hybridize, large hybrid zones have been formed.
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