Decoding the massive genome of loblolly pine using haploid DNA and novel assembly strategies

Table 2 Comparison of gene metrics among sequenced plant genomes

	Pinus taeda	Picea abies[8]	Arabidopsis thaliana[21]	Populus trichocarpa[21]	Vitis vinifera[21]	Amborella trichopoda[22]
Genome size (assembled) (Mbp)	20,148	12,019^a	135	423	487	706
Chromosomes	12	12	5	19	19	13
G + C content (%)	38.2	37.9	35.0	33.3	36.2	35.5
TE content (%)	79	70	15.3	42	41.4	N/A
Number of genes ^b	50,172	58,587^c	27,160	36,393	25,663	25,347
Average CDS length (bps)	965	723	1102	1143	1095	969
Average intron length (bps)	2,741	1,020	182	366	933	1,538
Maximum intron length (bps)	318,524	68,269	10,234	4,698	38,166	175,748

^aEstimated genome size is 19.6 Gbp.
^bNumber of full-length genes >150 bp in length and validated through current annotations.
^cHigh and medium confidence genes from the Congenie project [8].

ISSN: 1474-760X