PMID- 17273899 OWN - NLM STAT- MEDLINE DCOM- 20080521 LR - 20071024 IS - 0016-6707 (Print) IS - 0016-6707 (Linking) VI - 131 IP - 3 DP - 2007 Nov TI - Characterization of Japanese flounder karyotype by chromosome bandings and fluorescence in situ hybridization with DNA markers. PG - 267-74 AB - The chromosomes of Japanese flounder, Paralichthys olivaceus, were examined by conventional differential staining methods including G-, Q-, C-, silver (Ag)-, fluorochrome, and replication R-bandings and by fluorescence in situ hybridization (FISH) with 5S and 18S rDNAs and telomeric DNA as probes. Replication R-banding substantially made it possible to identify 24 homologous pairs by their RBG-banding pattern and relative length. Both rDNA loci were mapped to chromosome 1, where 5S and 18S rDNA loci were located at the centromeric region and secondary constriction, respectively. C-banding revealed that both rDNA loci were heterochromatic, and 18S rDNA loci were positive for chromomycin A(3) but negative for 4',6-diamidino-2-phenylindole (DAPI) staining. Telomeric FISH signals were observed at all chromosome ends and at the interstitial region of some chromosomes. The observed results were discussed in relation to the karyotype evolution in the order Pleuronectiformes. FAU - Fujiwara, Atushi AU - Fujiwara A AD - Inland Station, Fisheries Research Agency, National Research Institute of Aquaculture, Tamaki Mie 519-0423, Japan. jiwara@fra.affrc.go.jp FAU - Fujiwara, Mika AU - Fujiwara M FAU - Nishida-Umehara, Chizuko AU - Nishida-Umehara C FAU - Abe, Syuiti AU - Abe S FAU - Masaoka, Tetsuji AU - Masaoka T LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20070202 PL - Netherlands TA - Genetica JT - Genetica JID - 0370740 RN - 0 (DNA, Ribosomal) RN - 0 (Genetic Markers) SB - IM MH - Animals MH - Chromosome Banding MH - Chromosome Mapping MH - Cytogenetic Analysis/*methods MH - DNA, Ribosomal MH - *Evolution, Molecular MH - Flounder/*genetics MH - Genetic Markers MH - In Situ Hybridization, Fluorescence MH - Karyotyping/*methods MH - Staining and Labeling MH - Telomere EDAT- 2007/02/03 09:00 MHDA- 2008/05/22 09:00 CRDT- 2007/02/03 09:00 PHST- 2006/06/23 00:00 [received] PHST- 2006/12/23 00:00 [accepted] PHST- 2007/02/03 09:00 [pubmed] PHST- 2008/05/22 09:00 [medline] PHST- 2007/02/03 09:00 [entrez] AID - 10.1007/s10709-006-9136-z [doi] PST - ppublish SO - Genetica. 2007 Nov;131(3):267-74. doi: 10.1007/s10709-006-9136-z. Epub 2007 Feb 2.