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Characterization of chromosome structures of Falconinae (Falconidae, Falconiformes, Aves) by chromosome painting and delineation of chromosome rearrangements during their differentiation

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Title: Characterization of chromosome structures of Falconinae (Falconidae, Falconiformes, Aves) by chromosome painting and delineation of chromosome rearrangements during their differentiation
Authors: Nishida, Chizuko Browse this author
Ishijima, Junko Browse this author
Kosaka, Ayumi Browse this author
Tanabe, Hideyuki Browse this author
Habermann, Felix A Browse this author
Griffin, Darren K Browse this author
Matsuda, Yoichi Browse this author
Keywords: Accipitridae
chromosome
evolution
Falconinae
homology
karyotype
rearrangements
Issue Date: 2008
Publisher: Springer
Journal Title: Chromosome Research
Volume: 16
Issue: 1
Start Page: 171
End Page: 181
Publisher DOI: 10.1007/s10577-007-1210-6
Abstract: Karyotypes of most bird species are characterized by around 2n = 80 chromosomes, comprising 7Y10 pairs of large- and medium-sized macrochromosomes including sex chromosomes and numerous morphologically indistinguishable microchromosomes. The Falconinae of the Falconiformes has a different karyotype from the typical avian karyotype in low chromosome numbers, little size difference between macrochromosomes and a smaller number of microchromosomes. To characterize chromosome structures of Falconinae and to delineate the chromosome rearrangements that occurred in this subfamily, we conducted comparative chromosome painting with chicken chromosomes 1Y9 and Z probes and microchromosome-specific probes, and chromosome mapping of the 18SY28S rRNA genes and telomeric (TTAGGG)n sequences for common kestrel (Falco tinnunculus) (2n = 52), peregrine falcon (Falco peregrinus) (2n = 50) and merlin (Falco columbarius) (2n = 40). F. tinnunculus had the highest number of chromosomes and was considered to retain the ancestral karyotype of Falconinae; one and six centric fusions might have occurred in macrochromosomes of F. peregrinus and F. columbarius, respectively. Tandem fusions of microchromosomes to macrochromosomes and between microchromosomes were also frequently observed, and chromosomal locations of the rRNA genes ranged from two to seven pairs of chromosomes. These karyotypic features of Falconinae were relatively different from those of Accipitridae, indicating that the drastic chromosome rearrangements occurred independently in the lineages of Accipitridae and Falconinae.
Rights: The original publication is available at www.springerlink.com
Type: article (author version)
URI: http://hdl.handle.net/2115/44583
Appears in Collections:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 西田 千鶴子

 

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