Accessions of Solanum tuberosum ssp. andigena show differences in photosynthetic recovery after drought stress as reflected in gene expression profiles

Jonathan I. Watkinson, Lori Hendricks, Allan A. Sioson, Cecilia Vasquez-Robinet, Verlyn Stromberg, Lenwood S. Heath, Mary A Schuler, Hans J. Bohnert, Merideth Bonierbale, Ruth Grene

Research output: Contribution to journalArticle

Abstract

A drought screen is described that identifies accessions of Solanum tuberosum ssp. andigena that show varying degrees of physiological acclimation or adaptation to repeated drought stress. VTSA01 shows adaptation, recovering photosynthesis after a first cycle and maintaining this ability upon subsequent stress exposure. VTSA03 shows acclimation, recovering photosynthesis only after a second cycle of stress. VTSA02 shows an intermediate phenotype with partial recovery after one cycle and, later, improved recovery. Using statistical methods, we correlated changes in expression, of specific pathways and genes with the adaptive and acclimation-related phenotypes exhibited by the three accessions. These pathways and genes include transcripts in anti-oxidant defense, metallothioneins, flavonoid biosynthesis, and cytochrome P450. Genes involved in chromatin remodeling and transcriptional control of gene expression were also up-regulated. In the latter group, two types of zinc finger transcription factors, and several Myb and bZIP factors stand out, not previously associated with stress responses. Distinct and diverse responses to drought exist and attest to germplasm complexity within these potato land races.

Original languageEnglish (US)
Pages (from-to)745-758
Number of pages14
JournalPlant Science
Volume171
Issue number6
DOIs
StatePublished - Dec 1 2006

Fingerprint

Acclimatization
Droughts
Solanum tuberosum
Transcriptome
acclimation
water stress
Photosynthesis
gene expression
drought
photosynthesis
Genes
Phenotype
phenotype
Chromatin Assembly and Disassembly
genes
Metallothionein
zinc finger motif
Zinc Fingers
Flavonoids
cytochrome P-450

Keywords

  • Anthocyanin
  • Basic leucine zipper (bZIP)
  • Cytochrome P450 (CYP)
  • Histone deacetylase
  • Metallothionein
  • Small heat shock protein

ASJC Scopus subject areas

  • Genetics
  • Agronomy and Crop Science
  • Plant Science

Cite this

Watkinson, J. I., Hendricks, L., Sioson, A. A., Vasquez-Robinet, C., Stromberg, V., Heath, L. S., ... Grene, R. (2006). Accessions of Solanum tuberosum ssp. andigena show differences in photosynthetic recovery after drought stress as reflected in gene expression profiles. Plant Science, 171(6), 745-758. https://doi.org/10.1016/j.plantsci.2006.07.010

Accessions of Solanum tuberosum ssp. andigena show differences in photosynthetic recovery after drought stress as reflected in gene expression profiles. / Watkinson, Jonathan I.; Hendricks, Lori; Sioson, Allan A.; Vasquez-Robinet, Cecilia; Stromberg, Verlyn; Heath, Lenwood S.; Schuler, Mary A; Bohnert, Hans J.; Bonierbale, Merideth; Grene, Ruth.

In: Plant Science, Vol. 171, No. 6, 01.12.2006, p. 745-758.

Research output: Contribution to journalArticle

Watkinson, JI, Hendricks, L, Sioson, AA, Vasquez-Robinet, C, Stromberg, V, Heath, LS, Schuler, MA, Bohnert, HJ, Bonierbale, M & Grene, R 2006, 'Accessions of Solanum tuberosum ssp. andigena show differences in photosynthetic recovery after drought stress as reflected in gene expression profiles', Plant Science, vol. 171, no. 6, pp. 745-758. https://doi.org/10.1016/j.plantsci.2006.07.010
Watkinson, Jonathan I. ; Hendricks, Lori ; Sioson, Allan A. ; Vasquez-Robinet, Cecilia ; Stromberg, Verlyn ; Heath, Lenwood S. ; Schuler, Mary A ; Bohnert, Hans J. ; Bonierbale, Merideth ; Grene, Ruth. / Accessions of Solanum tuberosum ssp. andigena show differences in photosynthetic recovery after drought stress as reflected in gene expression profiles. In: Plant Science. 2006 ; Vol. 171, No. 6. pp. 745-758.
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