Table 1 Comparisons among five genome studies of Cinnamomum camphora

Plant materials for genome sequencing

NA

A mature individual which is growing naturally in Yong Chun, Quan-Zhou city

 C. camphora var. linaloolifera Fujita; NO.95

Fresh leaves of C. camphora (Lin-type)

Fresh leaves of a 500-year-old C. camphora in Wuxue, Hubei

Genome assembly

Predicted genome size (Mb) and method

785 /17-mer analysis

719.93 /K-mer analysis

760 /flow cytometric analysis

723.12 /K-mer analysis

687.08 /flow cytometric analysis

Genome size (Mb)

NA

737.85

755.41

706.47

680.79

chromosome-level size (Mb)

670.29

732.69 (99.3%)

697.81 (92.38%)

703.92 (99.5%)

666.5 (97.9%)

Quality assessment

Contig N50 (Mb)

2.41

2.60

2.01

2.19

9.18

Scaffold N50 (Mb)

60.19

66.26

64.34

3.17

60.04

Busco assessment for genome sequences

95.20%

95.27% embryophyta_odb10

96.2% viridiplantae

95.2% embryophyta_odb10

99.0% embryophyta_odb10

Busco assessment for protein sequences

90.80%

89.75% embryophyta_odb10

NA

90% embryophyta_odb10

97.6% embryophyta_odb10

Mapping/coverage rate

NA

NA

93-95% mapping rates of RNA-Seq paired-end reads against the assembled genome

The coverage rate obtained from five BAC clones and RNA-seq unigenes was 88.58 ∼ 99.83% and 98.20%, respectively

Average DNA-Seq mapping rate was 95.64%, and average RNA-Seq mapping rates was 91.81%.

Genome Annotation

No. of predicted proteins

29,919

29,789

24,883

36,411

34,918

No. of protein with functional annotation

NA

26,583 (89.24%)

24,152 (97.06%)

30,117 (82.71%)

30,076 (86.13%)

TPS Gene identification

No. of TPS genes

83

85

72

78

79

No. of TPS-b genes

42

54

44

32

44