Characterization of full-length enriched expressed sequence tags of stress-treated poplar leaves

Tokihiko Nanjo, Norihiro Futamura, Mitsuru Nishiguchi, Tomohiro Igasaki, Kazuo Shinozaki, Kenji Shinohara
Plant & Cell Physiology 2004, 45 (12): 1738-48
Poplar, whose genome is the first to be sequenced among woody plants, is a favorable model for plant biologists to enable them to understand molecular processes of growth, development and responses to environmental stimuli in trees. The sequence will allow the development of a strategy for improving environmental stress tolerance in forest trees. In this study, we have generated a full-length enriched cDNA library from leaves of axenically grown poplar (Populus nigra var. italica) subjected to environmental stress treatments by dehydration, high salinity, chilling, heat, abscisic acid (ABA) and H2O2. We sequenced >30,000 expressed sequence tags (ESTs) from the cDNA library and consequently collected approximately 4,500 non-redundant clones. We further analyzed cDNAs encoding an ERF/AP2-domain transcription factor which is specific in plants and plays an important role under stress. Thirteen candidates containing the ERF/AP2 domain were found within our EST resource. Some of them showed stress-responsive gene expression. We report here the first collection of full-length enriched stress-related ESTs of poplar and discuss environmental stress responses of forest trees in the light of comparative genomics.

Full Text Links

Find Full Text Links for this Article


You are not logged in. Sign Up or Log In to join the discussion.

Related Papers

Remove bar
Read by QxMD icon Read

Save your favorite articles in one place with a free QxMD account.


Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"