Largest known genome size (amount of DNA, 1C-value)

Value 152.23 pg, corresponds to about 150 Gbp Range: Table - link pg, corresponds to about 150 Gbp
Organism Plant Paris japonica
Reference Dr. Ilia J. Leitch, Prof. Andrew R. Leitch, Genome Size Diversity and Evolution in Land Plants, Plant Genome Diversity Volume 2, 2013, pp 307-322 p.308 table 19.1 & p.309 left column top paragraph
Primary Source Pellicer J, Fay MF, Leitch IJ (2010) The largest eukaryotic genome of them all? Bot J Linn Soc 164: 10–15
Method Flow cytometry
Comments "The new data available have extended the range of genome sizes encountered in land plants at both ends of the scale so C-values now vary nearly 2,400-fold. Both record holders are angiosperms with the smallest reported in the eudicot genus Genlisea (G. aurea 1C=0.065 pg, Fig. 19.2a) (Greilhuber et al. 2006 the report of 0.065 pg for G. margaretae actually belongs to G. aurea J. Greilhuber, pers. comm.) while the largest to date is in the monocot Paris japonica which is an octoploid with 2n=8x=40 and a staggering 1C=152.23 pg (primary source)(Fig. 19.2b)." "...a 1C-value refers to the amount of DNA in an unreplicated, gametic nucleus with a chromosome number n." Primary source abstract:"[Researchers] report the largest eukaryotic genome to date in the monocot Paris japonica (Melanthiaceae, 1C = 152.23 pg), measured using flow cytometry. This value is 15% larger than any previous estimate and extends the range of genome sizes to c. 2400-fold across angiosperms and c. 66 000-fold across eukaryotes."
Entered by Uri M
ID 110278