Abstract
Teucrium chamaedrys, commonly known as wall germander, is a small woody shrub native to the Mediterranean region. Its name is derived from the Greek words meaning "ground oak," as its tiny leaves resemble those of an oak tree. Teucrium species are prolific producers of diterpenes, endowing them with valuable properties widely utilized in traditional and modern medicine. Sequencing and assembly of the 3-Gbp tetraploid T. chamaedrys genome revealed 74 diterpene synthase genes, with a substantial number of these genes clustered at four synteny genomic loci, each harboring a copy of a large diterpene biosynthetic gene cluster. Comparative genomics revealed that this cluster is conserved in the closely related species Teucrium marum. Along with the presence of several cytochrome p450 sequences, this region is among the largest biosynthetic gene clusters identified. Teucrium is well known for accumulating clerodane-type diterpenoids, which are produced from a kolavenyl diphosphate precursor. To elucidate the complex biosynthetic pathways of these medicinal compounds, we identified and functionally characterized several kolavenyl diphosphate synthases from T. chamaedrys. The remarkable chemical diversity and tetraploid nature of T. chamaedrys make it a valuable model for studying genomic evolution and adaptation in plants.
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Claims 4
Claim · model-written summary
The T. chamaedrys genome assembly revealed 74 diterpene synthase genes.
- Taxon
- T. chamaedrys
Teucrium chamaedryse0 - Outcome
- diterpene synthase genese0
- Value
- 74e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sequencing and assembly of the 3-Gbp tetraploid T. chamaedrys genome revealed 74 diterpene synthase genes”
Claim · model-written summary
A substantial number of the diterpene synthase genes clustered at four synteny loci, each with a large diterpene biosynthetic gene cluster.
- Taxon
- Teucrium chamaedrysTeucrium chamaedryst0
- Outcome
- clustered at four synteny genomic locie1
- Value
- foure1
- Qualifier
- each harboring a copye1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tetraploid Teucrium chamaedrys”
e1“with a substantial number of these genes clustered at four synteny genomic loci, each harboring a copy of a large diterpene biosynthetic gene cluster”
Claim · model-written summary
The diterpene gene cluster is conserved in the closely related species Teucrium marum.
- Taxon
- Teucrium chamaedrysTeucrium chamaedryst0
- Outcome
- this clustere2
- Direction
- conservede2
- Comparator
- Teucrium marume2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tetraploid Teucrium chamaedrys”
e2“Comparative genomics revealed that this cluster is conserved in the closely related species Teucrium marum”
Claim · model-written summary
Several kolavenyl diphosphate synthases from T. chamaedrys were identified and functionally characterized.
- Taxon
- T. chamaedrysTeucrium chamaedryse3
- Gene
- kolavenyl diphosphate synthasese3
- Outcome
- identified and functionally characterizede3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“we identified and functionally characterized several kolavenyl diphosphate synthases from T. chamaedrys”