Chromosome identification and nomenclature of Sorghum bicolor Academic Article uri icon

abstract

  • Linkage group identities and homologies were determined for metaphase chromosomes of Sorghum bicolor (2n = 20) by FISH of landed BACs. Relative lengths of chromosomes in FISH-karyotyped metaphase spreads of the elite inbred BTx623 were used to estimate the molecular size of each chromosome and to establish a size-based nomenclature for sorghum chromosomes (SBI-01-SBI-10) and linkage groups (LG-01 to LG-10). Lengths of arms were determined to orient linkage groups relative to a standard karyotypic layout (short arms at top). The size-based nomenclature for BTx623 represents a reasonable choice as the standard for a unified chromosome nomenclature for use by the sorghum research community.

author list (cited authors)

  • Kim, J. S., Klein, P. E., Klein, R. R., Price, H. J., Mullet, J. E., & Stelly, D. M.

citation count

  • 117

publication date

  • February 2005

keywords

  • Centromere
  • Chromosome Mapping
  • Chromosomes, Plant
  • Genetic Linkage
  • Genetic Markers
  • In Situ Hybridization, Fluorescence
  • Karyotyping
  • Metaphase
  • Nucleolus Organizer Region
  • Sorghum
  • Terminology As Topic