Plant Biotechnology
Online ISSN : 1347-6114
Print ISSN : 1342-4580
ISSN-L : 1342-4580
Identification of the gene encoding granule-bound starch synthase I in sweet potato (Ipomoea batatas (L.) Lam.)
Takashi KIMURAOsamu IDETAAkira SAITO
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JOURNAL FREE ACCESS

2000 Volume 17 Issue 3 Pages 247-252

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Abstract

The cDNA and genomic clones from sweet potato encoding granule-bound starch synthase I (GBSSI) were isolated and characterized. The sequence analysis of the cDNA shows that the sweet potato GBSSI mature protein is comprised of 531 amino acids and that the precursor has a transit peptide of 77 amino acids. A comparison of the cDNA and genomic sequences suggested that the sweet potato GBSSI gene has 14 exons and 13 introns, the first of which is located in the untranslated region. This gene is considered to be a low-copy gene based on genomic Southern analysis.

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© Japanese Society for Plant Cell and Molecular Biology
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