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- W3140677789 abstract "Key message The expression of LcWRKY5 was induced significantly by salinity, mannitol and cutting treat- ments. Arabidopsis-overexpressing LcWRKY5 greatly increased dehydration tolerance by regulating the expression of multiple stress-responsive genes. Abstract Based on the data of sheepgrass 454 high- throughout sequencing and expression analysis results, a drought-induced gene LcWRKY5 was isolated and cloned, and the biological role of the gene has not been reported until now. Bioinformatics analysis showed that LcWRKY5 contains one conserved WD domain and belongs to the group II WRKY protein family. LcWRKY5 shows high sequence identity with predicted or putative protein pro- ducts of Hordeum vulgare, Aegilops tauschii, Triticum aestivum, Brachypodium distachyon, Oryza sativa, but it has low homology with WRKYs from dicotyledonous plants. Several drought-inducibility, fungal elicitor, MeJA- responsiveness, endosperm, light, anoxic specific induc- ibility, and circadian control elements were found in the promoter region of LcWRKY5. Tissue-specific expression patterns showed that LcWRKY5 is expressed in roots and leaves, without expression in other tissues. The expression of LcWRKY5 was induced significantly under salinity and mannitol stresses but was not notably changed under cold and Abscisic acid stress. The LcWRKY5 protein exhibits transcription activation activity in the yeast one-hybrid system. Overexpressing LcWRKY5 exhibited increased rates of cotyledon greening and plant survival in transgenic Arabidopsis compared with wild-type plants under drought stress, and the expression levels of DREB2A and RD29A in transgenic plants were enhanced under drought stress. These results indicated that LcWRKY5 may play an important role in drought-response networks through reg- ulation of the DREB2A pathway. LcWRKY5 can be a candidate gene for engineering drought tolerance in other crops." @default.
- W3140677789 created "2021-04-13" @default.
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- W3140677789 date "2014-01-01" @default.
- W3140677789 modified "2023-09-26" @default.
- W3140677789 title "LcWRKY5: an unknown function gene from sheepgrass improves drought tolerance in transgenic Arabidopsis" @default.
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