The draft genome of tropical fruit durian (Durio zibethinus).

Published

Journal Article

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.

Full Text

Duke Authors

Cited Authors

  • Teh, BT; Lim, K; Yong, CH; Ng, CCY; Rao, SR; Rajasegaran, V; Lim, WK; Ong, CK; Chan, K; Cheng, VKY; Soh, PS; Swarup, S; Rozen, SG; Nagarajan, N; Tan, P

Published Date

  • November 2017

Published In

Volume / Issue

  • 49 / 11

Start / End Page

  • 1633 - 1641

PubMed ID

  • 28991254

Pubmed Central ID

  • 28991254

Electronic International Standard Serial Number (EISSN)

  • 1546-1718

Digital Object Identifier (DOI)

  • 10.1038/ng.3972

Language

  • eng

Conference Location

  • United States