Genome size of three Miscanthus species

A. Lane Rayburn, Joseph Crawford, Charlotte M. Rayburn, John A. Juvik

Research output: Contribution to journalArticlepeer-review


Environmental and economic factors have stimulated research in the area of bioenergy crops. While many plants have been identified as potential energy crops, one species in particular, Miscanthus x giganteus, appears to have the most promise. As researchers attempt to exploit and improve M. x giganteus, genome information is critical. In this study, the genome size of M. x giganteus and its two progenitor species were examined by flow cytometry and stomatal cell analyses. M. x giganteus was found to have genome size of 7.0 pg while Miscanthus sinensis and Miscanthus sacchariflorus were observed to have genome sizes of 5.5 and 4.5 pg respectively with stomatal size correlating with genome size. Upon computing the two tetraploid∈×∈diploid hybrids theoretical genome sizes, the data presented in this paper supports the hypothesis of the union of a 2x M. sacchariflorus and a 1x M. sinensis gamete for the formation of the allotriploid, M. x giganteus. Such genomic information provides basic knowledge that is important in M. x giganteus plant improvement.

Original languageEnglish (US)
Pages (from-to)184-188
Number of pages5
JournalPlant Molecular Biology Reporter
Issue number2
StatePublished - Jun 2009


  • Flow cytometry
  • Guard cells
  • Miscanthus
  • Nuclear DNA content

ASJC Scopus subject areas

  • Molecular Biology
  • Plant Science

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