different development stages and abiotic stresses of bananas. Results showed that 15 MaDof genes
were up-regulated throughout the fruit development, suggesting that they may play important roles
in fruit development. In abotic stresses, most MaDof gene expressions were down-regulated,
suggesting that these genes played a negative regulation role in abotic stress.
In summary, this study is the first comprehensive genome-wide analysis of the Dof gene
family in bananas. A total of 74 MaDof gene family members were identified and could be
grouped into four classes. Banana Dof proteins appear to have structural diversities that may
indicate their diverse function. The expression levels of MaDof in different development stages
and abiotic stress treatments in fruits were characterized. Thus, the systematic analysis of the Dof
gene family and the preliminary results presented here may provide a foundation for further
research on the biological functions of Dof proteins in bananas, which will promote their
application in banana breeding.
Page 16 of 38
Genome Downloaded from by San Diego (UCSD) on 09/16/16
For personal use only. This Just-IN manuscript is the accepted manuscript prior to copy editing and page composition. It may differ from the final official version of record.
17
Acknowledgements
This research was supported by the Special Fund for Agro-scientific Research in the Public
Interest (Project No. 201503142-13) and the Modern Agro-industry Technology Research System
(Project No. CARS-32-12).
References:
Cai, X., Zhang, Y., Zhang, C., Zhang, T., Hu, T., Ye, J., Zhang, J., Wang, T., Li, H., and Ye, Z. 2013.
Genome∗wide Analysis of Plant∗specific Dof Transcription Factor Family in Tomato. J. Integr. Plant
Biol. 55: 552-566. doi.
Cannon, S.B., Mitra, A., Baumgarten, A., Young, N.D., and May, G. 2004. The roles of segmental and
tandem gene duplication in the evolution of large gene families in Arabidopsis thaliana. BMC Plant Biol.
4: 10. doi.
Cao, J., Shi, F., Liu, X., Huang, G., and Zhou, M. 2010. Phylogenetic analysis and evolution of aromatic
amino acid hydroxylase. FEBS Lett. 584: 4775-4782. doi.
Chen, Y., and Cao, J. 2015. Comparative Analysis of Dof Transcription Factor Family in Maize. Plant
Mol. Biol. Rep. 33: 1245-1258. doi.
Corrales, A., Nebauer, S.G., Carrillo, L., Fernández-Nohales, P., Marqués, J., Renau-Morata, B., Granell,
A., Pollmann, S., Vicente-Carbajosa, J., and Molina, R. 2014. Characterization of tomato Cycling Dof
Factors reveals conserved and new functions in the control of flowering time and abiotic stress responses.
J. Exp. Bot. 65: 995-1012. doi.
D Hont, A., Denoeud, F., Aury, J., Baurens, F., Carreel, F., Garsmeur, O., Noel, B., Bocs, S., Droc, G., and
Rouard, M. 2012. The banana (Musa acuminata) genome and the evolution of monocotyledonous plants.
Nature 488: 213-217. doi.
Page 17 of 38
Genome Downloaded from by San Diego (UCSD) on 09/16/16
For personal use only. This Just-IN manuscript is the accepted manuscript prior to copy editing and page composition. It may differ from the final official version of record.
18
Dong, C., Hu, H., Jue, D., Zhao, Q., Chen, H., Xie, J., and Jia, L.2016. The Banana E2 Gene Family:
Genomic Identification, Characterization, Expression Profiling Analysis. Plant Sci.. doi.
