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Arabidopsis allotetraploids were resynthesized by interspecific hybridization between autotetraploid A. thaliana and tetraploid A. arenosa. Individual F1 plants were self-pollinated to produce stable allotetraploids (F6). Two independent allotetraploid lines (Allo733 and Allo738) and A. suecica (#9502) are shown. A. suecica is a natural allotetraploid that is derived from A. thaliana- and A. arenosa-like progenitors (Chen, 2007).
