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An ordered yeast artificial chromosome library covering over half of rice chromosome 6. 1996

Y Umehara, and H Tanoue, and N Kurata, and I Ashikawa, and Y Minobe, and T Sasaki
Rice Genome Research Program, National Institute of Agrobiological Resources/Society for Techno-innovation of Agriculture, Forestry and Fisheries, Ibaraki, Japan.

Yeast artificial chromosome (YAC) clones carrying DNA marker sequences located on the rice genetic map of chromosome 6 were ordered for physical mapping. A total of 122 restriction fragment length polymorphism markers, 16 sequence-tagged site markers, and five random amplified polymorphic DNA markers located, on average, at 0.9-cM intervals, were used for YAC clone screening by colony/Southern hybridization and PCR screening, respectively. A total of 216 individual YACs were selected from our YAC library of 7000 clones covering six genome equivalents. Each DNA marker could select, on average, 4.8 YAC clones, with 11 clones being the maximum. The YACs localized to the corresponding linkage map positions form 43 contigs and encompass about 60% of rice chromosome 6. This is the first step in constructing a physical map covering the whole rice genome by chromosome landing with YAC clones. These YACs and data will be used soon to isolate phenotypical trait genes by map-based cloning.

UI MeSH Term Description Entries
D011110 Polymorphism, Genetic The regular and simultaneous occurrence in a single interbreeding population of two or more discontinuous genotypes. The concept includes differences in genotypes ranging in size from a single nucleotide site (POLYMORPHISM, SINGLE NUCLEOTIDE) to large nucleotide sequences visible at a chromosomal level. Gene Polymorphism,Genetic Polymorphism,Polymorphism (Genetics),Genetic Polymorphisms,Gene Polymorphisms,Polymorphism, Gene,Polymorphisms (Genetics),Polymorphisms, Gene,Polymorphisms, Genetic
D002874 Chromosome Mapping Any method used for determining the location of and relative distances between genes on a chromosome. Gene Mapping,Linkage Mapping,Genome Mapping,Chromosome Mappings,Gene Mappings,Genome Mappings,Linkage Mappings,Mapping, Chromosome,Mapping, Gene,Mapping, Genome,Mapping, Linkage,Mappings, Chromosome,Mappings, Gene,Mappings, Genome,Mappings, Linkage
D005819 Genetic Markers A phenotypically recognizable genetic trait which can be used to identify a genetic locus, a linkage group, or a recombination event. Chromosome Markers,DNA Markers,Markers, DNA,Markers, Genetic,Genetic Marker,Marker, Genetic,Chromosome Marker,DNA Marker,Marker, Chromosome,Marker, DNA,Markers, Chromosome
D012275 Oryza A genus of grass family (Poaceae) that include several rice species. Oryza sativa,Rice,Rices
D015139 Blotting, Southern A method (first developed by E.M. Southern) for detection of DNA that has been electrophoretically separated and immobilized by blotting on nitrocellulose or other type of paper or nylon membrane followed by hybridization with labeled NUCLEIC ACID PROBES. Southern Blotting,Blot, Southern,Southern Blot
D016324 Sequence Tagged Sites Short tracts of DNA sequence that are used as landmarks in GENOME mapping. In most instances, 200 to 500 base pairs of sequence define a Sequence Tagged Site (STS) that is operationally unique in the human genome (i.e., can be specifically detected by the polymerase chain reaction in the presence of all other genomic sequences). The overwhelming advantage of STSs over mapping landmarks defined in other ways is that the means of testing for the presence of a particular STS can be completely described as information in a database. Sequence-Tagged Sites,Sequence Tagged Site,Sequence-Tagged Site,Site, Sequence Tagged,Site, Sequence-Tagged,Sites, Sequence Tagged,Sites, Sequence-Tagged,Tagged Site, Sequence,Tagged Sites, Sequence
D018244 Chromosomes, Artificial, Yeast Chromosomes in which fragments of exogenous DNA ranging in length up to several hundred kilobase pairs have been cloned into yeast through ligation to vector sequences. These artificial chromosomes are used extensively in molecular biology for the construction of comprehensive genomic libraries of higher organisms. Artificial Chromosomes, Yeast,Yeast Artificial Chromosomes,Chromosomes, Yeast Artificial,YAC (Chromosome),YACs (Chromosomes),Artificial Chromosome, Yeast,Chromosome, Yeast Artificial,Yeast Artificial Chromosome

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