Abstract
There is no information on drought-modulated gene(s) in tea [Camellia sinensis (L.) O. Kuntze], a woody and perennial plant of commercial importance. Using differential display of mRNA, three drought-modulated expressed sequence tags (ESTs) were identified. Northern and BLAST analysis revealed that clonedr1 (droughtresponsive), induced only by drought but not by ABA, showed significant scores with PR-5 (pathogenesis related) family of PR-protein gene. Another clonedr2, repressed by drought but not by ABA, had nucleotide repeats for polyasparate that are also present in chicken calsequestrin-like mRNA. Clonedr3, responded similarly to clonedr2 but did not show significant homology with the reported genes, hence appears to be novel. Identification of these ESTs is an initial step to clone the full length genes and their promoters
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Abbreviations
- CO:
-
Control
- DS:
-
drought stress
- OLP:
-
osmotin-like protein
- PR:
-
pathogenesis related
- RC:
-
recovery
- TLP:
-
thaumatin-like protein
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Sharma, P., Kumar, S. Differential display-mediated identification of three drought-responsive expressed sequence tags in tea [Camellia sinensis (L.) O. Kuntze]. J. Biosci. 30, 231–235 (2005). https://doi.org/10.1007/BF02703703
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DOI: https://doi.org/10.1007/BF02703703