Comparative functional genomic analysis of solanum glandular trichome types

Eric T. McDowell, Jeremy Kapteyn, Adam Schmidt, Chao Li, Jin Ho Kang, Anne Descour, Feng Shi, Matthew Larson, Anthony Schilmiller, Lingling An, A. Daniel Jones, Eran Pichersky, Carol A. Soderlund, David R. Gang

Research output: Contribution to journalArticle

100 Citations (Scopus)

Abstract

Glandular trichomes play important roles in protecting plants from biotic attack by producing defensive compounds. We investigated the metabolic profiles and transcriptomes to characterize the differences between different glandular trichome types in several domesticated and wild Solanum species: Solanum lycopersicum (glandular trichome types 1, 6, and 7), Solanum habrochaites (types 1, 4, and 6), Solanum pennellii (types 4 and 6), Solanum arcanum (type 6), and Solanum pimpinellifolium (type 6). Substantial chemical differences in and between Solanum species and glandular trichome types are likely determined by the regulation of metabolism at several levels. Comparison of S. habrochaites type 1 and 4 glandular trichomes revealed few differences in chemical content or transcript abundance, leading to the conclusion that these two glandular trichome types are the same and differ perhaps only in stalk length. The observation that all of the other species examined here contain either type 1 or 4 trichomes (not both) supports the conclusion that these two trichome types are the same. Most differences in metabolites between type 1 and 4 glands on the one hand and type 6 glands on the other hand are quantitative but not qualitative. Several glandular trichome types express genes associated with photosynthesis and carbon fixation, indicating that some carbon destined for specialized metabolism is likely fixed within the trichome secretory cells. Finally, Solanum type 7 glandular trichomes do not appear to be involved in the biosynthesis and storage of specialized metabolites and thus likely serve another unknown function, perhaps as the site of the synthesis of protease inhibitors.

Original languageEnglish (US)
Pages (from-to)524-539
Number of pages16
JournalPlant Physiology
Volume155
Issue number1
DOIs
StatePublished - Jan 2011

Fingerprint

Trichomes
Solanum
trichomes
genomics
Solanum habrochaites
Solanum arcanum
Solanum pennellii
Solanum pimpinellifolium
metabolites
Carbon Cycle
metabolism
Metabolome
Calvin cycle
Photosynthesis
Solanum lycopersicum
Lycopersicon esculentum
proteinase inhibitors
Protease Inhibitors
Transcriptome
transcriptome

ASJC Scopus subject areas

  • Plant Science
  • Genetics
  • Physiology

Cite this

McDowell, E. T., Kapteyn, J., Schmidt, A., Li, C., Kang, J. H., Descour, A., ... Gang, D. R. (2011). Comparative functional genomic analysis of solanum glandular trichome types. Plant Physiology, 155(1), 524-539. https://doi.org/10.1104/pp.110.167114

Comparative functional genomic analysis of solanum glandular trichome types. / McDowell, Eric T.; Kapteyn, Jeremy; Schmidt, Adam; Li, Chao; Kang, Jin Ho; Descour, Anne; Shi, Feng; Larson, Matthew; Schilmiller, Anthony; An, Lingling; Daniel Jones, A.; Pichersky, Eran; Soderlund, Carol A.; Gang, David R.

In: Plant Physiology, Vol. 155, No. 1, 01.2011, p. 524-539.

Research output: Contribution to journalArticle

McDowell, ET, Kapteyn, J, Schmidt, A, Li, C, Kang, JH, Descour, A, Shi, F, Larson, M, Schilmiller, A, An, L, Daniel Jones, A, Pichersky, E, Soderlund, CA & Gang, DR 2011, 'Comparative functional genomic analysis of solanum glandular trichome types', Plant Physiology, vol. 155, no. 1, pp. 524-539. https://doi.org/10.1104/pp.110.167114
McDowell ET, Kapteyn J, Schmidt A, Li C, Kang JH, Descour A et al. Comparative functional genomic analysis of solanum glandular trichome types. Plant Physiology. 2011 Jan;155(1):524-539. https://doi.org/10.1104/pp.110.167114
McDowell, Eric T. ; Kapteyn, Jeremy ; Schmidt, Adam ; Li, Chao ; Kang, Jin Ho ; Descour, Anne ; Shi, Feng ; Larson, Matthew ; Schilmiller, Anthony ; An, Lingling ; Daniel Jones, A. ; Pichersky, Eran ; Soderlund, Carol A. ; Gang, David R. / Comparative functional genomic analysis of solanum glandular trichome types. In: Plant Physiology. 2011 ; Vol. 155, No. 1. pp. 524-539.
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