Molecular analyses of a barley multigene family homologous to the yeast protein kinase gene SNF1

A - Papers appearing in refereed journals

Halford, N. G., Vicentecarbajosa, J., Sabelli, P. A., Shewry, P. R., Hannappel, U. and Kreis, M. 1992. Molecular analyses of a barley multigene family homologous to the yeast protein kinase gene SNF1. The Plant Journal. 2 (5), pp. 791-797.

AuthorsHalford, N. G., Vicentecarbajosa, J., Sabelli, P. A., Shewry, P. R., Hannappel, U. and Kreis, M.
Abstract

Genomic sequences homologous to the yeast gene SNF1 have been isolated from barley (Hordeum vulgare) cv. Sunbar. SNF1 encodes a protein serine/threonine kinase required for the derepression of a number of genes, including SUC2 (invertase) in response to glucose deprivation. Southern blotting showed the presence of a family of related genes in barley and full-length sequences have been determined for two members of the family, one of which lacks an exon and is almost certainly non-functional. A partial sequence has been obtained for a third member of the family. The transcription start site of one of the genes has been determined by S1 nuclease protection. A transcript almost identical in sequence to the exons of one of the genes has been amplified from barley endosperm mRNA using the polymerase chain reaction. One of the full-length genomic sequences contains nine introns and 10 exons and the number and position of the introns in the second full-length sequence is identical except that it lacks exon 2. However, the length and sequence of the introns vary. Northern blot analyses indicated that related transcripts are present in aleurones, coleoptiles, endosperms, internodes, leaves, ovules, roots and root tips, with highest levels of expression in the aleurones and endosperms.

KeywordsPlant Sciences
Year of Publication1992
JournalThe Plant Journal
Journal citation2 (5), pp. 791-797
Digital Object Identifier (DOI)doi:10.1111/j.1365-313X.1992.tb00148.x
PubMed ID1302632
Open accessPublished as non-open access
ISSN09607412
0960-7412
PublisherWiley

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