Genomic insight into domestication of rubber tree.
Journal
Nature communications
ISSN: 2041-1723
Titre abrégé: Nat Commun
Pays: England
ID NLM: 101528555
Informations de publication
Date de publication:
02 08 2023
02 08 2023
Historique:
received:
22
05
2022
accepted:
20
07
2023
medline:
4
8
2023
pubmed:
3
8
2023
entrez:
2
8
2023
Statut:
epublish
Résumé
Understanding the genetic basis of rubber tree (Hevea brasiliensis) domestication is crucial for further improving natural rubber production to meet its increasing demand worldwide. Here we provide a high-quality H. brasiliensis genome assembly (1.58 Gb, contig N50 of 11.21 megabases), present a map of genome variations by resequencing 335 accessions and reveal domestication-related molecular signals and a major domestication trait, the higher number of laticifer rings. We further show that HbPSK5, encoding the small-peptide hormone phytosulfokine (PSK), is a key domestication gene and closely correlated with the major domestication trait. The transcriptional activation of HbPSK5 by myelocytomatosis (MYC) members links PSK signaling to jasmonates in regulating the laticifer differentiation in rubber tree. Heterologous overexpression of HbPSK5 in Russian dandelion (Taraxacum kok-saghyz) can increase rubber content by promoting laticifer formation. Our results provide an insight into target genes for improving rubber tree and accelerating the domestication of other rubber-producing plants.
Identifiants
pubmed: 37532727
doi: 10.1038/s41467-023-40304-y
pii: 10.1038/s41467-023-40304-y
pmc: PMC10397287
doi:
Substances chimiques
Rubber
9006-04-6
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
4651Commentaires et corrections
Type : CommentIn
Informations de copyright
© 2023. The Author(s).
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