Genome size diversity in angiosperms and its influence on gene space

Steven Dodsworth, Andrew R. Leitch, Ilia J. Leitch*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

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Genome size varies c. 2400-fold in angiosperms (flowering plants), although the range of genome size is skewed towards small genomes, with a mean genome size of 1C. =. 5.7. Gb. One of the most crucial factors governing genome size in angiosperms is the relative amount and activity of repetitive elements. Recently, there have been new insights into how these repeats, previously discarded as 'junk' DNA, can have a significant impact on gene space (i.e. the part of the genome comprising all the genes and gene-related DNA). Here we review these new findings and explore in what ways genome size itself plays a role in influencing how repeats impact genome dynamics and gene space, including gene expression.

Original languageEnglish
Pages (from-to)73-78
Number of pages6
JournalCurrent Opinion in Genetics and Development
Early online date21 Nov 2015
Publication statusPublished - 1 Dec 2015


  • UKRI
  • NERC
  • NE/G01724/1


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