Two maize genes encoding ω-3 fatty acid desaturase and their differential expression to temperature

Thomas Berberich, Mariko Harada, Kazuyuki Sugawara, Hiroaki Kodama, Koh Iba, Tomonobu Kusano

研究成果: ジャーナルへの寄稿記事

110 引用 (Scopus)

抄録

We have isolated two maize cDNAs and the corresponding genes encoding fatty acid desaturase with Arabidopsis thaliana FAD7 gene as a probe. They shared almost 90% identity at DNA sequence level. Northern analysis revealed that both genes are expressed in leaves, but not in roots at normal temperature- and low temperature-growth condition. The overall level of these transcripts are elevated upon exposure to low temperature. The tissue-specific expression and DNA sequence data indicate that both genes encode plastidic ω-3 fatty acid desaturases. One of them is expressed exclusively at normal temperature but not at 5 °C, whereas the other is expressed inversely. We, therefore, termed them ZmFAD7 and ZmFAD8, respectively. Among other stresses, high-salt treatment induced the accumulation of the ZmFAD7 and ZmFAD8 transcripts in roots but drought had no effect on their expression. Cycloheximide induced the accumulation of the ZmFAD7 transcript in roots. The genomic clones of ZmFAD7 and ZmFAD8 consist of 8 exons and 7 introns as same as in the cases of A. thaliana FAD7 and FAD8 genes and the sizes of the 6 internal exons were identical among them. A phylogenetic analysis of ZmFAD7, ZmFAD8 amino acid sequences and those originated from other plant species is also presented.

元の言語英語
ページ(範囲)297-306
ページ数10
ジャーナルPlant Molecular Biology
36
発行部数2
DOI
出版物ステータス出版済み - 1 1 1998

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Fatty Acid Desaturases
stearoyl-CoA desaturase
Gene encoding
Zea mays
Genes
Temperature
corn
DNA sequences
Exons
temperature
genes
Arabidopsis
exons
Arabidopsis thaliana
Drought
Growth temperature
Cycloheximide
nucleotide sequences
Introns
Droughts

All Science Journal Classification (ASJC) codes

  • Agronomy and Crop Science
  • Genetics
  • Plant Science

これを引用

Two maize genes encoding ω-3 fatty acid desaturase and their differential expression to temperature. / Berberich, Thomas; Harada, Mariko; Sugawara, Kazuyuki; Kodama, Hiroaki; Iba, Koh; Kusano, Tomonobu.

:: Plant Molecular Biology, 巻 36, 番号 2, 01.01.1998, p. 297-306.

研究成果: ジャーナルへの寄稿記事

Berberich, Thomas ; Harada, Mariko ; Sugawara, Kazuyuki ; Kodama, Hiroaki ; Iba, Koh ; Kusano, Tomonobu. / Two maize genes encoding ω-3 fatty acid desaturase and their differential expression to temperature. :: Plant Molecular Biology. 1998 ; 巻 36, 番号 2. pp. 297-306.
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abstract = "We have isolated two maize cDNAs and the corresponding genes encoding fatty acid desaturase with Arabidopsis thaliana FAD7 gene as a probe. They shared almost 90{\%} identity at DNA sequence level. Northern analysis revealed that both genes are expressed in leaves, but not in roots at normal temperature- and low temperature-growth condition. The overall level of these transcripts are elevated upon exposure to low temperature. The tissue-specific expression and DNA sequence data indicate that both genes encode plastidic ω-3 fatty acid desaturases. One of them is expressed exclusively at normal temperature but not at 5 °C, whereas the other is expressed inversely. We, therefore, termed them ZmFAD7 and ZmFAD8, respectively. Among other stresses, high-salt treatment induced the accumulation of the ZmFAD7 and ZmFAD8 transcripts in roots but drought had no effect on their expression. Cycloheximide induced the accumulation of the ZmFAD7 transcript in roots. The genomic clones of ZmFAD7 and ZmFAD8 consist of 8 exons and 7 introns as same as in the cases of A. thaliana FAD7 and FAD8 genes and the sizes of the 6 internal exons were identical among them. A phylogenetic analysis of ZmFAD7, ZmFAD8 amino acid sequences and those originated from other plant species is also presented.",
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AU - Kusano, Tomonobu

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