Genome-scale transcriptomic insights into early-stage fruit development in woodland strawberry Fragaria vesca.

Journal Article (Journal Article)

Fragaria vesca, a diploid woodland strawberry with a small and sequenced genome, is an excellent model for studying fruit development. The strawberry fruit is unique in that the edible flesh is actually enlarged receptacle tissue. The true fruit are the numerous dry achenes dotting the receptacle's surface. Auxin produced from the achene is essential for the receptacle fruit set, a paradigm for studying crosstalk between hormone signaling and development. To investigate the molecular mechanism underlying strawberry fruit set, next-generation sequencing was employed to profile early-stage fruit development with five fruit tissue types and five developmental stages from floral anthesis to enlarged fruits. This two-dimensional data set provides a systems-level view of molecular events with precise spatial and temporal resolution. The data suggest that the endosperm and seed coat may play a more prominent role than the embryo in auxin and gibberellin biosynthesis for fruit set. A model is proposed to illustrate how hormonal signals produced in the endosperm and seed coat coordinate seed, ovary wall, and receptacle fruit development. The comprehensive fruit transcriptome data set provides a wealth of genomic resources for the strawberry and Rosaceae communities as well as unprecedented molecular insight into fruit set and early stage fruit development.

Full Text

Duke Authors

Cited Authors

  • Kang, C; Darwish, O; Geretz, A; Shahan, R; Alkharouf, N; Liu, Z

Published Date

  • June 28, 2013

Published In

Volume / Issue

  • 25 / 6

Start / End Page

  • 1960 - 1978

PubMed ID

  • 23898027

Pubmed Central ID

  • PMC3723606

Electronic International Standard Serial Number (EISSN)

  • 1532-298X

International Standard Serial Number (ISSN)

  • 1040-4651

Digital Object Identifier (DOI)

  • 10.1105/tpc.113.111732

Language

  • eng