The draft genome of tropical fruit durian (Durio zibethinus).
Nat Genet
; 49(11): 1633-1641, 2017 Nov.
Article
en En
| MEDLINE
| ID: mdl-28991254
ABSTRACT
Durian (Durio zibethinus) is a Southeast Asian tropical plant known for its hefty, spine-covered fruit and sulfury and onion-like odor. Here we present a draft genome assembly of D. zibethinus, representing the third plant genus in the Malvales order and first in the Helicteroideae subfamily to be sequenced. Single-molecule sequencing and chromosome contact maps enabled assembly of the highly heterozygous durian genome at chromosome-scale resolution. Transcriptomic analysis showed upregulation of sulfur-, ethylene-, and lipid-related pathways in durian fruits. We observed paleopolyploidization events shared by durian and cotton and durian-specific gene expansions in MGL (methionine γ-lyase), associated with production of volatile sulfur compounds (VSCs). MGL and the ethylene-related gene ACS (aminocyclopropane-1-carboxylic acid synthase) were upregulated in fruits concomitantly with their downstream metabolites (VSCs and ethylene), suggesting a potential association between ethylene biosynthesis and methionine regeneration via the Yang cycle. The durian genome provides a resource for tropical fruit biology and agronomy.
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Proteínas de Plantas
/
Liasas de Carbono-Azufre
/
Genoma de Planta
/
Bombacaceae
/
Transcriptoma
/
Frutas
Idioma:
En
Revista:
Nat Genet
Asunto de la revista:
GENETICA MEDICA
Año:
2017
Tipo del documento:
Article
País de afiliación:
Singapur