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. 2019 Dec 18;32(3):547–572. doi: 10.1105/tpc.19.00158

Table 1. Genomic Features of Established and Emerging Diatom Model Species.

Centric Diatoms Pennate Diatoms
Features Thalassiosira pseudonanaa Thalassiosira oceanica Cyclotella cryptica Skeletonema costatum Phaeodactylum tricornutuma Fragilariopsis cylindrus Pseudo-nitzschia multiseries Pseudo-nitzschia multistriata Fistulifera solaris
Strain CCMP1335 CCMP1005 CCMP332 Ariake8 CCAP 1055/1 CCMP 1102 CLN-47 B856 JPCC DA0580
Ploidy diploid diploid diploid diploid diploid, triploidy proposed allodiploid
Genome size (Mbp) 32.1 81.6 161.7 46.9 27.4 61.1 218.7 59 24.9
Number of:
 Chr. pairs 24 34 42
 Scaffolds 51,656 55 4890 297
Haplotype divergence 0.75% 0.85% up to 6% in 29% of genes 14 to 38%
Number of genes 11,776 34,642 21,121 16,449 12,233 21,066 19,703 12,008 11,448
Average gene size (bp) 1,740.8 1,255 1,471 1,100 1,624 1,575 1,522 2,205
Intron
 Number/gene 1.54 1.29 1.18 0.89 1.1 1.38 0.87
 Average length 125.4 bp 150 bp 125 bp 142 bp 255.7 bp 229 bp 341 bp
Plastid
 Genome size 129 kbp 141 kbp 129 kbp 117 kbp 111. 5 kbp 135 kbp
 Number of genes 127 128 132 130 97 132
Mitochondria
 Genome size 43.8 kbp 35.3 kbp 58 kbp 77.3 kbp 46.3 kbp >38.6 kbp
 Number of genes 34 31 35 34 37 31
Annotation version v3 v1 v3 v1 v1
References (Armbrust et al., 2004) (Lommer et al., 2012) (Traller et al., 2016) (Ogura et al., 2018) (Bowler, 2008; Rastogi et al., 2018) (Mock et al., 2017) (Basu et al., 2017) (Tanaka et al., 2015b)

Blank cells indicate no data available.

a

Established diatom model species.