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This article in TPG

  1. Vol. 3 No. 2, p. 90-105
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    Received: Mar 3, 2010


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doi:10.3835/plantgenome2010.02.0003

A Transcript Accounting from Diverse Tissues of a Cultivated Strawberry

  1. Kevin M. Folta ,
  2. Maureen A. Clancy,
  3. Srikar Chamala,
  4. Asha M. Brunings,
  5. Amit Dhingra,
  6. Leandro Gomide,
  7. Rob J. Kulathinal,
  8. Natalia Peres,
  9. Thomas M. Davis and
  10. W. Brad Barbazuk 
  1. K.M. Folta, M.A. Clancy, and A.M. Brunings, Horticultural Sciences Dep. and the Graduate Program in Plant Cellular and Molecular Biology, Univ. of Florida, Gainesville, FL. S. Chamala, L. Gomide, W.B. Barbazuk, and R.J. Kulathinal, Dep. of Biology and the Genetics Institute, Univ. of Florida, Gainesville, FL. A. Dhingra, Dep. of Horticulture and Landscape Architecture, Washington State Univ., Pullman, WA. N. Peres, Plant Pathology Dep. and the Gulf Coast Research and Education Center, Univ. of Florida, Wimauma, FL. T.M. Davis, Dep. of Biological Sciences, Univ. of New Hampshire, Durham, NH.

Abstract

Strawberry (Fragaria spp.) is a valuable fruit crop as well as an outstanding system for studying functional genomics in plants. The goal of this study was to substantially increase and analyze the available expressed sequence information in the genus by examining the transcriptome of the cultivated strawberry (Fragaria × ananassa Duchesne). To maximize transcript diversity and discovery, plants representing an octoploid strawberry cultivar were subjected to a broad range of treatments. Plant materials were pooled by tissue type. cDNA pools were sequenced by the Roche-454 GS-FLX system and assembled into over 32,000 contigs. Predictions of cellular localization and function were made by associating assembled contigs to annotated homologs, and the tissue pool tags provided a means to assess the overall expression pattern for any given transcript. Contigs comprised of reads originating from only one organ type and those present equally in all plant organs were both identified. Bacterial and fungal sequences found in the strawberry samples provide a metagenomic survey of the microbial community of a greenhouse strawberry plant. This study utilized an innovative assembly strategy on pooled tissues, thus providing a foundation for developing tissue-specific tools, an opportunity to identify alleles for marker-assisted selection, a reference of strawberry gene annotations, and a basis for comparative transcriptomics between cultivated strawberry, its diploid ancestors, and the wider Rosaceae family.

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