A pistil-specific thaumatin/PR5-like protein gene of Japanese pear (Pyrus serotina): sequence and promoter activity of the 5' region in transgenic tobacco

The genomic clone encoding the pistil-specific thaumatin/PR5-like protein (PsTL1) was isolated from Japanese pear (Pyrus serotina). Sequence analysis showed that the genomic clone contained the 5'-flanking sequence of 2.4 kb, the 3'-flanking sequence of 648 bp and the coding region interru...

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Bibliographic Details
Published in:Plant molecular biology 2002-10, Vol.50 (3), p.371-377
Main Authors: Sassa, Hidenori, Ushijima, Koichiro, Hirano, Hisashi
Format: Article
Language:English
Subjects:
5' Flanking Region - genetics
Base Sequence
Cloning
DNA, Plant - chemistry
DNA, Plant - genetics
Flowers - metabolism
Genomics
Glucuronidase - genetics
Glucuronidase - metabolism
Glycoproteins - genetics
Histocytochemistry
Molecular Sequence Data
Nicotiana - genetics
Plant biology
Plant Proteins - genetics
Plants, Genetically Modified
Pollen
Promoter Regions, Genetic - genetics
Proteins
Pyrus - genetics
Recombinant Fusion Proteins - genetics
Recombinant Fusion Proteins - metabolism
Sequence Analysis, DNA
Sequence Homology, Nucleic Acid
Tobacco
Transgenic plants
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Summary:The genomic clone encoding the pistil-specific thaumatin/PR5-like protein (PsTL1) was isolated from Japanese pear (Pyrus serotina). Sequence analysis showed that the genomic clone contained the 5'-flanking sequence of 2.4 kb, the 3'-flanking sequence of 648 bp and the coding region interrupted by a intron of 351 bp. A sequence motif conserved in some pistil self-incompatibility gene promoters of solanaceous and brassicaceous species was located in the 5'-flanking region of the PsTL1 gene. The 2.4 kb 5'-flanking region was fused to the GUS coding sequence and transferred to tobacco. Transgenic tobacco showed GUS activity in pistil and, at low level, in anther, but not in other floral organs and leaf. Histochemical analysis localized GUS activity to stigma, transmitting tissue, anther and pollen of transgenic tobacco.
ISSN:0167-4412
1573-5028
DOI:10.1023/A:1019866029629