Genome size variation in Hordeum spontaneum populations

Timo Turpeinen, Johanna Kulmala, Eviatar Nevo

Research output: Contribution to journalArticlepeer-review

Abstract

Populations of wild barley, Hordeum spontaneum (C. Koch), originating from 10 ecologically and geographically different sites in Israel, were assessed for genome size. Measurements were obtained by flow cytometry using propidium iodide staining. Genome sizes ranged from 9.35 to 9.81 pg. Variance analysis indicated a significant difference between populations. Genome sizes were positively correlated with mean January temperature. Our results corroborate previous findings of intraspecific variation in genome size from different plant species. The positive correlations between climate and genome size suggest that the latter is adaptive and determined by natural selection.

Original languageEnglish
Pages (from-to)1094-1099
Number of pages6
JournalGenome
Volume42
Issue number6
DOIs
StatePublished - 1999

Keywords

  • Flow cytometry
  • Genome size
  • Hordeum spontaneum
  • Intraspecific variation
  • Natural selection

ASJC Scopus subject areas

  • Genetics
  • Molecular Biology
  • Biotechnology

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