PMID- 17028954 OWN - NLM STAT- MEDLINE DCOM- 20070116 LR - 20061009 IS - 0016-6707 (Print) IS - 0016-6707 (Linking) VI - 128 IP - 1-3 DP - 2006 Sep-Nov TI - FISH on avian lampbrush chromosomes produces higher resolution gene mapping. PG - 241-51 AB - Giant lampbrush chromosomes, which are characteristic of the diplotene stage of prophase I during avian oogenesis, represent a very promising system for precise physical gene mapping. We applied 35 chicken BAC and 4 PAC clones to both mitotic metaphase chromosomes and meiotic lampbrush chromosomes of chicken (Gallus gallus domesticus) and Japanese quail (Coturnix coturnix japonica). Fluorescence in situ hybridization (FISH) mapping on lampbrush chromosomes allowed us to distinguish closely located probes and revealed gene order more precisely. Our data extended the data earlier obtained using FISH to chicken and quail metaphase chromosomes 1-6 and Z. Extremely low levels of inter- and intra-chromosomal rearrangements in the chicken and Japanese quail were demonstrated again. Moreover, we did not confirm the presence of a pericentric inversion in Japanese quail chromosome 4 as compared to chicken chromosome 4. Twelve BAC clones specific for chicken chromosome 4p and 4q showed the same order in quail as in chicken when FISH was performed on lampbrush chromosomes. The centromeres of chicken and quail chromosomes 4 seem to have formed independently after centric fusion of ancestral chromosome 4 and a microchromosome. FAU - Galkina, Svetlana AU - Galkina S AD - Biological Research Institute, Saint-Petersburg State University, Oranienbaumskoie shosse 2, Stary Peterhof, 198504, Saint-Petersburg, Russia. FAU - Deryusheva, Svetlana AU - Deryusheva S FAU - Fillon, Valerie AU - Fillon V FAU - Vignal, Alain AU - Vignal A FAU - Crooijmans, Richard AU - Crooijmans R FAU - Groenen, Martin AU - Groenen M FAU - Rodionov, Alexander AU - Rodionov A FAU - Gaginskaya, Elena AU - Gaginskaya E LA - eng PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Netherlands TA - Genetica JT - Genetica JID - 0370740 RN - 9007-49-2 (DNA) SB - IM MH - Animals MH - Base Sequence MH - Chickens/*genetics MH - Chromosome Mapping/*methods MH - Chromosomes, Artificial, Bacterial/genetics MH - Coturnix/*genetics MH - DNA/genetics MH - In Situ Hybridization, Fluorescence/*methods MH - Meiosis/genetics MH - Mitosis/genetics MH - Species Specificity EDAT- 2006/10/10 09:00 MHDA- 2007/01/17 09:00 CRDT- 2006/10/10 09:00 PHST- 2005/07/24 00:00 [received] PHST- 2005/12/07 00:00 [accepted] PHST- 2006/10/10 09:00 [pubmed] PHST- 2007/01/17 09:00 [medline] PHST- 2006/10/10 09:00 [entrez] AID - 10.1007/s10709-005-5776-7 [doi] PST - ppublish SO - Genetica. 2006 Sep-Nov;128(1-3):241-51. doi: 10.1007/s10709-005-5776-7.