Journal of Tea Science Research, 2024, Vol.14, No.1, 64-78 http://hortherbpublisher.com/index.php/jtsr 67 Figure 1 Features of the CCH (Camellia chekiangoleosa Hu) Genome (Adopted from Shen et al., 2022) Image caption: The outermost ring of the figure shows the 15 pseudochromosomes of CCH. The second to fifth rings represent the genes, total TEs, Copia element distribution, and Gypsy element distribution, respectively. Green indicates lower density, while red indicates higher density. The innermost area represents the collinear regions within the CCH genome. The genome size of CCH was 2.73 Gb, covering 97.40% of the scaffolds (scaffold N50 = 185.30 Mb) (Adapted from Shen et al., 2022) 2.2 Genomic resources Several reference genomes for Camellia species have been made available through recent genomic studies. The first chromosome-level genome sequence of Camellia chekiangoleosa provides insights into Camellia evolution and tea oil biosynthesis (Shen et al., 2022). Similarly, the draft genome sequence of Camellia sinensis var. sinensis offers valuable information on the evolution of the tea genome and the biosynthesis of key tea metabolites (Wei et al., 2018). These reference genomes serve as essential resources for further genomic and evolutionary studies in the Camellia genus.
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