Journal
BIOCHIMICA ET BIOPHYSICA ACTA-GENE STRUCTURE AND EXPRESSION
Volume 1490, Issue 1-2, Pages 198-202Publisher
ELSEVIER
DOI: 10.1016/S0167-4781(99)00243-2
Keywords
Citrus unshiu; dad-1; non-climacteric fruit; senescence
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A cDNA homologue to the human defender against apoptotic death gene (dad-1), which is involved in programmed cell death, was isolated from satsuma mandarin (Citrus unshiu Marc.) fruit. It (Citdad-1-1) was 345 bp long, with a deduced protein sequence of 115 amino acids. Southern hybridization suggests that dad-1-related sequences are present as a small gene family in the citrus genome. Expression of Citdad-1-1 was progressively down-regulated in leaves as they matured, but not in juice sac/segment epidermis (edible part) towards fruit ripening. The role of dad-1 during citrus development is also discussed. (C) 2000 Elsevier Science B.V. All rights reserved.
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