PMID- 7753830 OWN - NLM STAT- MEDLINE DCOM- 19950616 LR - 20220321 IS - 0027-8424 (Print) IS - 1091-6490 (Electronic) IS - 0027-8424 (Linking) VI - 92 IP - 10 DP - 1995 May 9 TI - Metaphase and interphase fluorescence in situ hybridization mapping of the rice genome with bacterial artificial chromosomes. PG - 4487-91 AB - Fluorescence in situ hybridization (FISH) is a powerful tool for physical mapping in human and other mammalian species. However, application of the FISH technique has been limited in plant species, especially for mapping single- or low-copy DNA sequences, due to inconsistent signal production in plant chromosome preparations. Here we demonstrate that bacterial artificial chromosome (BAC) clones can be mapped readily on rice (Oryza sativa L.) chromosomes by FISH. Repetitive DNA sequences in BAC clones can be suppressed efficiently by using rice genomic DNA as a competitor in the hybridization mixture. BAC clones as small as 40 kb were successfully mapped. To demonstrate the application of the FISH technique in physical mapping of plant genomes, both anonymous BAC clones and clones closely linked to a rice bacterial blight-resistance locus, Xa21, were chosen for analysis. The physical location of Xa21 and the relationships among the linked clones were established, thus demonstrating the utility of FISH in plant genome analysis. FAU - Jiang, J AU - Jiang J AD - Department of Plant Pathology, Kansas State University, Manhattan 66506-5502, USA. FAU - Gill, B S AU - Gill BS FAU - Wang, G L AU - Wang GL FAU - Ronald, P C AU - Ronald PC FAU - Ward, D C AU - Ward DC LA - eng GR - HG-00272/HG/NHGRI NIH HHS/United States PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - Proc Natl Acad Sci U S A JT - Proceedings of the National Academy of Sciences of the United States of America JID - 7505876 SB - IM MH - Animals MH - *Chromosomes, Bacterial MH - Genetic Techniques MH - *Genome, Plant MH - Humans MH - In Situ Hybridization, Fluorescence MH - Interphase MH - Mammals MH - Metaphase MH - Oryza/*cytology/*genetics MH - Repetitive Sequences, Nucleic Acid PMC - PMC41969 EDAT- 1995/05/09 00:00 MHDA- 1995/05/09 00:01 PMCR- 1995/11/09 CRDT- 1995/05/09 00:00 PHST- 1995/05/09 00:00 [pubmed] PHST- 1995/05/09 00:01 [medline] PHST- 1995/05/09 00:00 [entrez] PHST- 1995/11/09 00:00 [pmc-release] AID - 10.1073/pnas.92.10.4487 [doi] PST - ppublish SO - Proc Natl Acad Sci U S A. 1995 May 9;92(10):4487-91. doi: 10.1073/pnas.92.10.4487.