Genome and whole-genome resequencing of Cinnamomum camphora elucidate its dominance in subtropical urban landscapes.
BMC Biol
; 21(1): 192, 2023 09 12.
Article
in En
| MEDLINE
| ID: mdl-37697363
ABSTRACT
BACKGROUND:
Lauraceae is well known for its significant phylogenetic position as well as important economic and ornamental value; however, most evergreen species in Lauraceae are restricted to tropical regions. In contrast, camphor tree (Cinnamomum camphora) is the most dominant evergreen broadleaved tree in subtropical urban landscapes.RESULTS:
Here, we present a high-quality reference genome of C. camphora and conduct comparative genomics between C. camphora and C. kanehirae. Our findings demonstrated the significance of key genes in circadian rhythms and phenylpropanoid metabolism in enhancing cold response, and terpene synthases (TPSs) improved defence response with tandem duplication and gene cluster formation in C. camphora. Additionally, the first comprehensive catalogue of C. camphora based on whole-genome resequencing of 75 accessions was constructed, which confirmed the crucial roles of the above pathways and revealed candidate genes under selection in more popular C. camphora, and indicated that enhancing environmental adaptation is the primary force driving C. camphora breeding and dominance.CONCLUSIONS:
These results decipher the dominance of C. camphora in subtropical urban landscapes and provide abundant genomic resources for enlarging the application scopes of evergreen broadleaved trees.Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Cinnamomum camphora
Language:
En
Journal:
BMC Biol
Journal subject:
BIOLOGIA
Year:
2023
Document type:
Article
Affiliation country:
China