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ID 17053
本文ファイル
著者
Yamada, Kazuhiko
Nishida-Umehara, Chizuko
Ishijima, Junko
Murakami, Takahiro
Shibusawa, Mami
Tsuchiya, Kimiyuki
Matsuda, Yoichi
キーワード
W chromosome
repetitive DNA sequence
Japanese quail
guinea fowl
Neognathous birds
NDC
生物科学・一般生物学
抄録(英)
A novel family of repetitive DNA sequences were molecularly cloned from ApaI-digested genomic DNA of two Galliformes species, Japanese quail (Coturnix japonica) and guinea fowl (Numida meleagris), and characterized by chromosome in-situ hybridization and filter hybridization. Both the repeated sequence elements produced intensely painted signals on the W chromosomes, whereas they weakly hybridized to whole chromosomal regions as interspersed-type repetitive sequences. The repeated elements of the two species had high similarity of nucleotide sequences, and cross-hybridized to chromosomes of two other Galliformes species, chicken (Gallus gallus) and blue-breasted quail (Coturnix chinensis). The nucleotide sequences were conserved in three other orders of Neognathous birds, the Strigiformes, Gruiformes and Falconiformes, but not in Palaeognathous birds, the Struthioniformes and Tinamiformes, indicating that the repeated sequence elements were amplified on the W chromosomes in the lineage of Neognathous birds after the common ancestor diverged into the Palaeognathae and Neognathae. They are components of the W heterochromatin in Neognathous birds, and a good molecular cytogenetic marker for estimating the phylogenetic relationships and for clarifying the origin of the sex chromosome heterochromatin and the process of sex chromosome differentiation in birds.
掲載誌名
Chromosome Research
14巻
6号
開始ページ
613
終了ページ
627
出版年月日
2006-09
出版者
Springer
ISSN
0967-3849
NCID
出版者DOI
PubMedID
言語
英語
NII資源タイプ
学術雑誌論文
広大資料タイプ
学術雑誌論文
DCMIタイプ
text
フォーマット
application/pdf
著者版フラグ
author
権利情報
Copyright (c) 2006 Springer-Verlag. "The original publication is available at www.springerlin.com"
関連情報URL(IsVersionOf)
http://dx.doi.org/10.1007/s10577-006-1071-4
部局名
生物圏科学研究科