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Genetics. Dec 1998; 150(4): 1663–1682.
PMCID: PMC1460436

Detailed alignment of saccharum and sorghum chromosomes: comparative organization of closely related diploid and polyploid genomes.


The complex polyploid genomes of three Saccharum species have been aligned with the compact diploid genome of Sorghum (2n = 2x = 20). A set of 428 DNA probes from different Poaceae (grasses) detected 2460 loci in F1 progeny of the crosses Saccharum officinarum Green German x S. spontaneum IND 81-146, and S. spontaneum PIN 84-1 x S. officinarum Muntok Java. Thirty-one DNA probes detected 226 loci in S. officinarum LA Purple x S. robustum Molokai 5829. Genetic maps of the six Saccharum genotypes, including up to 72 linkage groups, were assembled into "homologous groups" based on parallel arrangements of duplicated loci. About 84% of the loci mapped by 242 common probes were homologous between Saccharum and Sorghum. Only one interchromosomal and two intrachromosomal rearrangements differentiated both S. officinarum and S. spontaneum from Sorghum, but 11 additional cases of chromosome structural polymorphism were found within Saccharum. Diploidization was advanced in S. robustum, incipient in S. officinarum, and absent in S. spontaneum, consistent with biogeographic data suggesting that S. robustum is the ancestor of S. officinarum, but raising new questions about the antiquity of S. spontaneum. The densely mapped Sorghum genome will be a valuable tool in ongoing molecular analysis of the complex Saccharum genome.

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Selected References

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  • al-Janabi SM, Honeycutt RJ, McClelland M, Sobral BW. A genetic linkage map of Saccharum spontaneum L. 'SES 208'. Genetics. 1993 Aug;134(4):1249–1260. [PMC free article] [PubMed]
  • Guimarães CT, Sills GR, Sobral BW. Comparative mapping of Andropogoneae: Saccharum L. (sugarcane) and its relation to sorghum and maize. Proc Natl Acad Sci U S A. 1997 Dec 23;94(26):14261–14266. [PMC free article] [PubMed]
  • Helentjaris T, Weber D, Wright S. Identification of the genomic locations of duplicate nucleotide sequences in maize by analysis of restriction fragment length polymorphisms. Genetics. 1988 Feb;118(2):353–363. [PMC free article] [PubMed]
  • Lander ES, Green P, Abrahamson J, Barlow A, Daly MJ, Lincoln SE, Newberg LA, Newburg L. MAPMAKER: an interactive computer package for constructing primary genetic linkage maps of experimental and natural populations. Genomics. 1987 Oct;1(2):174–181. [PubMed]
  • Lin YR, Schertz KF, Paterson AH. Comparative analysis of QTLs affecting plant height and maturity across the Poaceae, in reference to an interspecific sorghum population. Genetics. 1995 Sep;141(1):391–411. [PMC free article] [PubMed]
  • Boughaleb D, Mansourati J, Genet L, Barra J, Mondine P, Blanc JJ. Stimulation cardiaque définitive après remplacement valvulaire aortique: incidence, facteurs prédictifs et pronostic à long terme. Arch Mal Coeur Vaiss. 1994 Jul;87(7):925–930. [PubMed]
  • Paterson AH, Lin YR, Li Z, Schertz KF, Doebley JF, Pinson SR, Liu SC, Stansel JW, Irvine JE. Convergent domestication of cereal crops by independent mutations at corresponding genetic Loci. Science. 1995 Sep 22;269(5231):1714–1718. [PubMed]
  • Silva JA, Sorrells ME, Burnquist WL, Tanksley SD. RFLP linkage map and genome analysis of Saccharum spontaneum. Genome. 1993 Aug;36(4):782–791. [PubMed]
  • Paterson AH, Lan TH, Reischmann KP, Chang C, Lin YR, Liu SC, Burow MD, Kowalski SP, Katsar CS, DelMonte TA, et al. Toward a unified genetic map of higher plants, transcending the monocot-dicot divergence. Nat Genet. 1996 Dec;14(4):380–382. [PubMed]
  • Pereira MG, Lee M, Bramel-Cox P, Woodman W, Doebley J, Whitkus R. Construction of an RFLP map in sorghum and comparative mapping in maize. Genome. 1994 Apr;37(2):236–243. [PubMed]
  • Grivet L, D'Hont A, Roques D, Feldmann P, Lanaud C, Glaszmann JC. RFLP mapping in cultivated sugarcane (Saccharum spp.): genome organization in a highly polyploid and aneuploid interspecific hybrid. Genetics. 1996 Mar;142(3):987–1000. [PMC free article] [PubMed]

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