A phased Vanilla planifolia genome enables genetic improvement of flavour and production.

Tomas Hasing, Haibao Tang, Maria Brym, Fayaz Khazi, Tengfang Huang, Alan H Chambers
Author Information
  1. Tomas Hasing: Elo Life Systems, Durham, NC, USA.
  2. Haibao Tang: Center for Genomics and Biotechnology, Fujian Agricultural and Forestry University, Fuzhou, China. ORCID
  3. Maria Brym: Tropical Research and Education Center, Horticultural Sciences Department, University of Florida, Homestead, FL, USA.
  4. Fayaz Khazi: Elo Life Systems, Durham, NC, USA.
  5. Tengfang Huang: Elo Life Systems, Durham, NC, USA. thuang@elolife.ag. ORCID
  6. Alan H Chambers: Tropical Research and Education Center, Horticultural Sciences Department, University of Florida, Homestead, FL, USA. ac@ufl.edu. ORCID

Abstract

The global supply of vanilla extract is primarily sourced from the cured beans of the tropical orchid species Vanilla planifolia. Vanilla plants were collected from Mesoamerica, clonally propagated and globally distributed as part of the early spice trade. Today, the global food and beverage industry depends on descendants of these original plants that have not generally benefited from genetic improvement. As a result, vanilla growers and processors struggle to meet global demand for vanilla extract and are challenged by inefficient and unsustainable production practices. Here, we report a chromosome-scale, phased V. planifolia genome, which reveals sequence variants for genes that may impact the vanillin pathway and therefore influence bean quality. Resequencing of related vanilla species, including the minor commercial species Vanilla × tahitensis, identified genes that could impact productivity and post-harvest losses through pod dehiscence, flower anatomy and disease resistance. The vanilla genome reported in this study may enable accelerated breeding of vanilla to improve high-value traits.

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