The ups and downs of genome size evolution in polyploid species of Nicotiana (Solanaceae).

@article{Leitch2008TheUA,
  title={The ups and downs of genome size evolution in polyploid species of Nicotiana (Solanaceae).},
  author={Ilia J. Leitch and Lynda Hanson and Kar Yoong Lim and Ale{\vs} Kovař{\'i}k and Mark W. Chase and James Clarkson and Andrew Rowland Leitch},
  journal={Annals of botany},
  year={2008},
  volume={101 6},
  pages={805-14}
}
BACKGROUND In studies looking at individual polyploid species, the most common patterns of genomic change are that either genome size in the polyploid is additive (i.e. the sum of parental genome donors) or there is evidence of genome downsizing. Reports showing an increase in genome size are rare. In a large-scale analysis of 3008 species, genome downsizing was shown to be a widespread biological response to polyploidy. Polyploidy in the genus Nicotiana (Solanaceae) is common with approx. 40… CONTINUE READING
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