title: A comparative karyological study of the blue-breasted quail (Coturnix chinensis, Phasianidae) and California quail (Callipepla californica, Odontophoridae).
abstract: We conducted comparative chromosome painting and chromosome mapping with chicken DNA probes against the blue-breasted quail (Coturnix chinensis, CCH) and California quail (Callipepla californica, CCA), which are classified into the Old World quail and the New World quail, respectively. Each chicken probe of chromosomes 1-9 and Z painted a pair of chromosomes in the blue-breasted quail. In California quail, chicken chromosome 2 probe painted chromosomes 3 and 6, and chicken chromosome 4 probe painted chromosomes 4 and a pair of microchromosomes. Comparison of the cytogenetic maps of the two quail species with those of chicken and Japanese quail revealed that there are several intrachromosomal rearrangements, pericentric and/or paracentric inversions, in chromosomes 1, 2 and 4 between chicken and the Old World quail. In addition, a pericentric inversion was found in chromosome 8 between chicken and the three quail species. Ordering of the Z-linked DNA clones revealed the presence of multiple rearrangements in the Z chromosomes of the three quail species. Comparing these results with the molecular phylogeny of Galliformes species, it was also cytogenetically supported that the New World quail is classified into a different clade from the lineage containing chicken and the Old World quail.
authors.affiliation: Laboratory of Cytogenetics, Division of Bioscience, Graduate School of Environmental Earth Science, Hokkaido University, Sapporo, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Shibusawa
authors.forename: C
authors.initials: C
authors.lastname: Nishida-Umehara
authors.forename: M
authors.initials: M
authors.lastname: Tsudzuki
authors.forename: J
authors.initials: J
authors.lastname: Masabanda
authors.forename: D K
authors.initials: DK
authors.lastname: Griffin
authors.forename: Y
authors.initials: Y
authors.lastname: Matsuda
mesh_terms: D000818:Animals; D002645:Chickens / Q000235:genetics; D002869:Chromosome Aberrations / Q000662:veterinary; D002871:Chromosome Banding / Q000662:veterinary; D002874:Chromosome Mapping / Q000662:veterinary; D020223:Chromosome Painting / Q000662:veterinary; D003370:Coturnix / Q000235:genetics*; D019143:Evolution, Molecular; D005260:Female; D007621:Karyotyping / Q000662:veterinary; D010802:Phylogeny; D011784:Quail / Q000235:genetics*