A telomere-to-telomere genome assembly of Camellia nitidissima
Abstract Camellia nitidissima is the model species of the Camellia sect. Chrysantha Chang, the only lineage within the genus Camellia known to produce golden-yellow flowers. This species holds high aesthetic, germplasm and medical value. Unfortunately, due to excessive collection and habitat loss, C...
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| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2025-05-01
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| Series: | Scientific Data |
| Online Access: | https://doi.org/10.1038/s41597-025-05157-8 |
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| Summary: | Abstract Camellia nitidissima is the model species of the Camellia sect. Chrysantha Chang, the only lineage within the genus Camellia known to produce golden-yellow flowers. This species holds high aesthetic, germplasm and medical value. Unfortunately, due to excessive collection and habitat loss, C. nitidissima is classified as a critically endangered plant. In this study, we assembled a telomere-to-telomere (T2T) genome of C. nitidissima by incorporating PacBio HiFi and Hi-C data. The assembled genome consisted of 15 pseudo-chromosomes, with a total size estimated to be 2.72 Gb. The GC content and repetitive sequences occupied 38.05% and 84.38% of the assembled genome, respectively. In total, 35,701 protein-coding genes were annotated. Multiple evaluation methods confirmed the contiguity (contig N50: 81.74 Mb), completeness (BUSCOs: 98.80%) and high LTR Assembly Index (LAI: 14.57) of the genome. This high-quality T2T genome will provide valuable insights into the genomic characteristics of C. nitidissima and facilitate conservation efforts as well as functional genomic studies in Camellia sect. Chrysantha species. |
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| ISSN: | 2052-4463 |