Abstract
The early auxin responsive SAUR family is an important gene family in auxin signal transduction. We here present the first report of a genome-wide identification of SAUR genes in watermelon genome. We successfully identified 65 ClaSAURs and provide a genomic framework for future study on these genes. Phylogenetic result revealed a Cucurbitaceae-specific SAUR subfamily and contribute to understanding of the evolutionary pattern of SAUR genes in plants. Quantitative RT-PCR analysis demonstrates the existed expression of 11 randomly selected SAUR genes in watermelon tissues. ClaSAUR36 was highly expressed in fruit, for which further study might bring a new prospective for watermelon fruit development. Moreover, correlation analysis revealed the similar expression profiles of SAUR genes between watermelon and Arabidopsis during shoot organogenesis. This work gives us a new support for the conserved auxin machinery in plants.
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Acknowledgements
We would like to thank Dr. Adel M. R. A. Abdelaziz from Central Laboratory of Organic Agriculture, Agricultural Research Center (Giza 12619, Egypt) for manuscript revision. This study was supported by Applied Basic Research Project of Wuhan City (2015021701011611), Talent Project for Wuhan Institute of Agricultural Science (CX201615-06) and Supporting Program for Science and Technology Research of Hubei Province (2015BBA201).
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Zhang, N., Huang, X., Bao, Y. et al. Genome-wide identification of SAUR genes in watermelon (Citrullus lanatus). Physiol Mol Biol Plants 23, 619–628 (2017). https://doi.org/10.1007/s12298-017-0442-y
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DOI: https://doi.org/10.1007/s12298-017-0442-y