Analysis of xylem formation in pine by cDNA sequencing

DOI Web Site 被引用文献16件
  • Isabel Allona
    Forest Biotechnology Group, Department of Forestry, North Carolina State University, Raleigh, NC 27695-8008; and Computational Biology Center, University of Minnesota, Minneapolis, MN 55455-0312
  • Michelle Quinn
    Forest Biotechnology Group, Department of Forestry, North Carolina State University, Raleigh, NC 27695-8008; and Computational Biology Center, University of Minnesota, Minneapolis, MN 55455-0312
  • Elizabeth Shoop
    Forest Biotechnology Group, Department of Forestry, North Carolina State University, Raleigh, NC 27695-8008; and Computational Biology Center, University of Minnesota, Minneapolis, MN 55455-0312
  • Kristi Swope
    Forest Biotechnology Group, Department of Forestry, North Carolina State University, Raleigh, NC 27695-8008; and Computational Biology Center, University of Minnesota, Minneapolis, MN 55455-0312
  • Sheila St. Cyr
    Forest Biotechnology Group, Department of Forestry, North Carolina State University, Raleigh, NC 27695-8008; and Computational Biology Center, University of Minnesota, Minneapolis, MN 55455-0312
  • John Carlis
    Forest Biotechnology Group, Department of Forestry, North Carolina State University, Raleigh, NC 27695-8008; and Computational Biology Center, University of Minnesota, Minneapolis, MN 55455-0312
  • John Riedl
    Forest Biotechnology Group, Department of Forestry, North Carolina State University, Raleigh, NC 27695-8008; and Computational Biology Center, University of Minnesota, Minneapolis, MN 55455-0312
  • Ernest Retzel
    Forest Biotechnology Group, Department of Forestry, North Carolina State University, Raleigh, NC 27695-8008; and Computational Biology Center, University of Minnesota, Minneapolis, MN 55455-0312
  • Malcolm M. Campbell
    Forest Biotechnology Group, Department of Forestry, North Carolina State University, Raleigh, NC 27695-8008; and Computational Biology Center, University of Minnesota, Minneapolis, MN 55455-0312
  • Ronald Sederoff
    Forest Biotechnology Group, Department of Forestry, North Carolina State University, Raleigh, NC 27695-8008; and Computational Biology Center, University of Minnesota, Minneapolis, MN 55455-0312
  • Ross W. Whetten
    Forest Biotechnology Group, Department of Forestry, North Carolina State University, Raleigh, NC 27695-8008; and Computational Biology Center, University of Minnesota, Minneapolis, MN 55455-0312

書誌事項

公開日
1998-08-04
DOI
  • 10.1073/pnas.95.16.9693
公開者
Proceedings of the National Academy of Sciences

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説明

<jats:p> Secondary xylem (wood) formation is likely to involve some genes expressed rarely or not at all in herbaceous plants. Moreover, environmental and developmental stimuli influence secondary xylem differentiation, producing morphological and chemical changes in wood. To increase our understanding of xylem formation, and to provide material for comparative analysis of gymnosperm and angiosperm sequences, ESTs were obtained from immature xylem of loblolly pine ( <jats:italic>Pinus taeda</jats:italic> L.). A total of 1,097 single-pass sequences were obtained from 5′ ends of cDNAs made from gravistimulated tissue from bent trees. Cluster analysis detected 107 groups of similar sequences, ranging in size from 2 to 20 sequences. A total of 361 sequences fell into these groups, whereas 736 sequences were unique. About 55% of the pine EST sequences show similarity to previously described sequences in public databases. About 10% of the recognized genes encode factors involved in cell wall formation. Sequences similar to cell wall proteins, most known lignin biosynthetic enzymes, and several enzymes of carbohydrate metabolism were found. A number of putative regulatory proteins also are represented. Expression patterns of several of these genes were studied in various tissues and organs of pine. Sequencing novel genes expressed during xylem formation will provide a powerful means of identifying mechanisms controlling this important differentiation pathway. </jats:p>

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