Difference in DNA content between seeds collected from the periphery versus the middle of the flowering heads

Range ~15 %
Organism Sunflower Helianthus annuus
Reference Gregory TR. Coincidence, coevolution, or causation? DNA content, cell size, and the C-value enigma. Biol Rev Camb Philos Soc. 2001 Feb76(1):65-101. p.84 right column 2nd paragraphPubMed ID11325054
Primary Source L. Natali, A. Cavallini, G. Cionini, O. Sassoli, P. G. Cionini, M. Durante, Nuclear DNA changes within Helianthus annum L.: changes within single progenies and their relationships with plant development, Theoretical and Applied Genetics January 1993, Volume 85, Issue 5, pp 506-512
Comments "[Primary source] reports results from a single inbred line of the plant Helianthus annuus, in which there is a difference of approximately 15% in DNA content between seeds collected from the periphery versus the middle of the flowering heads (due to differences in the numbers of repetitive elements)."
Entered by Uri M
ID 109400