Tissue-specific and constitutive expression of a hypothetical gene At2g37610 in transgenic Arabidopsis |
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Authors: | Xiang Gao and Ye-Qin Hu |
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Institution: | (1) Hubei Key Laboratory of Genetic Regulation and Integrative Biology, College of Life Sciences, Central China Normal University, Wuhan, 430079, China;(2) Key Laboratory of MOE for Plant Developmental Biology, College of Life Sciences, Wuhan University, Wuhan, 430072, China |
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Abstract: | Hypothetical genes should play important roles in plant growth and development, although their biological functions await
elucidation. One of these genes, namely At2g37610, caught our attention during the gene cloning of several salt-tolerant mutants. Promoter-GUS fusion analysis indicated a unique
tissue-specific expression pattern of At2g37610 in Arabidopsis. Constitutive expression of the gene under 35S promoter caused obvious morphological changes in transgenic Arabidopsis plants, such as curled rosette leaves and bushy phenotype at maturity. Phenotypic characterization revealed that the cause
of the bushy phenotype was the enhanced lateral bud outgrowth at the bottom region of the primary inflorescence, which is
different from that of reported mutant plants (bushy or branched) such as max, axr1, and bus mutants. Together, these data suggest that At2g37610 is a possible novel gene related to the regulation of leaf development and shoot patterning. |
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Keywords: | Arabidopsis At2g37610 Bushy phenotype Constitutive expression Curled leaves Hypothetical gene Tissue-specific expression |
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