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Heterogeneity of poly(A) sites in the granule-bound starch synthase I gene in sweet potato (Ipomoea batatas (L.) Lam.).

Authors
  • Kimura, Takashi
  • Saito, Akira
Type
Published Article
Journal
Bioscience Biotechnology and Biochemistry
Publisher
Informa UK (Taylor & Francis)
Publication Date
Jan 01, 2010
Volume
74
Issue
3
Pages
667–669
Identifiers
PMID: 20208377
Source
Medline
License
Unknown

Abstract

Analysis of the cDNAs of granule-bound starch synthase I (GBSSI) in sweet potato indicated that six types of GBSSI were expressed in the tuberous root, and that the poly(A) sites in GBSSI were highly heterogeneous. Several poly(A) sites were located within or downstream of the polymorphic TA repeat. The GBSSI gene has a 23-nucleotide A-rich sequence in the 3' untranslated region, and we believe that the main near-upstream elements of the poly(A) signal are included in this sequence.

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