Sequence of asr2, a member of a gene family from lycopersicon esculentum encoding chromosomal proteins: Homology to an intron of the polygalacturonase gene

Asr is a family of genes regulated by abscisic acid, stress and ripening in tomato. Asr2, a recently reported member of this family, has been further characterized through sequencing of a genomic clone. We report the sequencing of 2029 bp of Asr2, spanning its AT-rich (62% upstream region with proba...

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Autores principales: Rossi, M., Iusem, N.D.
Formato: JOUR
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Acceso en línea:http://hdl.handle.net/20.500.12110/paper_19401744_v5_n4_p225_Rossi
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Sumario:Asr is a family of genes regulated by abscisic acid, stress and ripening in tomato. Asr2, a recently reported member of this family, has been further characterized through sequencing of a genomic clone. We report the sequencing of 2029 bp of Asr2, spanning its AT-rich (62% upstream region with probable regulatory functions. This region displays several candidate TATA and CAAT boxes that might be involved in transcription initiation, as well as a motif similar to one previously reported to be responsible for induction by ABA. Apart from that, we found a 108-bp stretch from the 3' non-coding region which displays a high homology (92% to a region within intron 6 of the polygalacturonase gene, which, like Asr2, is expressed in ripening tomato fruit. This striking similarity suggests the presence of either a conserved regulatory motif or an abundant mobile element. © 1995 Informa UK Ltd All rights reserved: reproduction in whole or part not permitted.