PMID- 14961342 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20040226 LR - 20191108 IS - 1436-2228 (Print) IS - 1436-2228 (Linking) VI - 3 IP - 5 DP - 2001 Sep TI - A centromeric satellite sequence in the Pacific oyster (Crassostrea gigas Thunberg) identified by fluorescence in situ hybridization. PG - 486-92 AB - A highly repetitive satellite sequence was previously identified in the Pacific oyster Crassostrea gigas Thunberg. The sequence has 168 bp per unit, present in tandem repeats, and accounts for 1% to 4% of the genome. We studied the chromosomal location of this satellite sequence by fluorescence in situ hybridization (FISH). A probe was made by polymerase chain reaction and incorporation of digoxigenin-11-dUTP. Hybridization was detected with fluorescein-labeled antidigoxigenin antibodies. FISH signals were located at centromeric regions of 7 pairs of the Pacific oyster chromosomes. No interstitial site was found. Signals were strong and consistent on chromosomes 1, 2, 4, and 7, but weak or variable on chromosomes 5, 8, and 10. No signal was observed on chromosomes 3, 6, and 9. Our results showed that this sequence is clearly a centromeric satellite, disputing its previous assignment to the telomeric and submetacentric regions of 2 chromosomes. No signal was detected in the American oyster (Crassostrea virginica Gmelin). FAU - Wang, Y AU - Wang Y AD - Haskin Shellfish Research Laboratory, Institute of Marine and Coastal Sciences, Rutgers University, 6959 Miller Avenue, Post Norris, NJ 08349, USA. FAU - Xu, Z AU - Xu Z FAU - Guo, X AU - Guo X LA - eng PT - Journal Article PL - United States TA - Mar Biotechnol (NY) JT - Marine biotechnology (New York, N.Y.) JID - 100892712 EDAT- 2004/02/13 05:00 MHDA- 2004/02/13 05:01 CRDT- 2004/02/13 05:00 PHST- 2004/02/13 05:00 [pubmed] PHST- 2004/02/13 05:01 [medline] PHST- 2004/02/13 05:00 [entrez] AID - 10.1007/s10126-001-0063-3 [doi] PST - ppublish SO - Mar Biotechnol (NY). 2001 Sep;3(5):486-92. doi: 10.1007/s10126-001-0063-3.