Abstract
A novel family of repetitive DNA sequences was 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.
| Original language | English |
|---|---|
| Pages (from-to) | 613-627 |
| Number of pages | 15 |
| Journal | Chromosome Research |
| Volume | 14 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - Sep 1 2006 |
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All Science Journal Classification (ASJC) codes
- Genetics
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A novel family of repetitive DNA sequences amplified site-specifically on the W chromosomes in Neognathous birds. / Yamada, Kazuhiko; Nishida-Umehara, Chizuko; Ishijima, Junko; Murakami, Takahiro; Shibusawa, Mami; Tsuchiya, Kimiyuki; Tsudzuki, Masaoki; Matsuda, Yoichi.
In: Chromosome Research, Vol. 14, No. 6, 01.09.2006, p. 613-627.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - A novel family of repetitive DNA sequences amplified site-specifically on the W chromosomes in Neognathous birds
AU - Yamada, Kazuhiko
AU - Nishida-Umehara, Chizuko
AU - Ishijima, Junko
AU - Murakami, Takahiro
AU - Shibusawa, Mami
AU - Tsuchiya, Kimiyuki
AU - Tsudzuki, Masaoki
AU - Matsuda, Yoichi
PY - 2006/9/1
Y1 - 2006/9/1
N2 - A novel family of repetitive DNA sequences was 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.
AB - A novel family of repetitive DNA sequences was 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.
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U2 - 10.1007/s10577-006-1071-4
DO - 10.1007/s10577-006-1071-4
M3 - Article
VL - 14
SP - 613
EP - 627
JO - Chromosome Research
JF - Chromosome Research
SN - 0967-3849
IS - 6
ER -