Characterization and application of soybean YACs to molecular cytogenetics

Tong Zhu, Liang Shi, Roel P. Funke, Peter M. Gresshoff, Paul S Keim

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Yeast artificial chromosomes (YACs) are widely used in the physical analysis of complex genomes. In addition to their value in chromosome walking for map-based cloning, YACs represent excellent probes for chromosome mapping using fluorescence in situ hybridization (FISH). We have screened such a library for low-copy-number clones by hybridization to total genomic DNA. Four clones were chosen for chromosome tagging based upon their low or moderate signal. By using degenerate oligonucleotide-primed PCR (DOP-PCR), we were able to use relatively small amounts of soybean YAC DNA, isolated directly by preparative pulsed-field gel electrophoresis, as FISH probes for both metaphase chromosome spreads and interphase nuclei. FISH chromosomal analysis using the three of the clones as probes resulted in relatively simple hybridization patterns consistent with a single homologous locus or two homoeologous loci. The fourth YAC probe resulted in a diffuse hybridization pattern with signal on all metaphase chromosomes. We conclude that YACs represent a valuable source of probes for chromosomal analysis in soybean.

Original languageEnglish (US)
Pages (from-to)483-488
Number of pages6
JournalMGG Molecular & General Genetics
Volume252
Issue number4
DOIs
StatePublished - 1996

Fingerprint

Yeast Artificial Chromosomes
Soybeans
Cytogenetics
Fluorescence In Situ Hybridization
Clone Cells
Chromosomes
Metaphase
Chromosome Walking
Chromosome Mapping
Pulsed Field Gel Electrophoresis
DNA
Interphase
DNA Probes
Oligonucleotides
Libraries
Organism Cloning
Genome
Polymerase Chain Reaction

Keywords

  • Degenerate oligonucleotide-primed PCR (DOP-PCR)
  • Fluorescence in situ hybridization
  • Glycine max
  • Soybean
  • Yeast artificial chromosomes

ASJC Scopus subject areas

  • Genetics

Cite this

Characterization and application of soybean YACs to molecular cytogenetics. / Zhu, Tong; Shi, Liang; Funke, Roel P.; Gresshoff, Peter M.; Keim, Paul S.

In: MGG Molecular & General Genetics, Vol. 252, No. 4, 1996, p. 483-488.

Research output: Contribution to journalArticle

Zhu, Tong ; Shi, Liang ; Funke, Roel P. ; Gresshoff, Peter M. ; Keim, Paul S. / Characterization and application of soybean YACs to molecular cytogenetics. In: MGG Molecular & General Genetics. 1996 ; Vol. 252, No. 4. pp. 483-488.
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