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Int. J. Mol. Sci. 2017, 18(4), 818;

Genome-Wide Analyses of the Soybean F-Box Gene Family in Response to Salt Stress

Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops, College of Crop Science, Fujian Agriculture and Forestry University, Jinshan, Fuzhou 350002, China
School of Life Sciences and Center for Soybean Research of the Partner State Key Laboratory of Agrobiotechnology, The Chinese University of Hong Kong, Shatin, Hong Kong, China
Author to whom correspondence should be addressed.
Academic Editor: Marcello Iriti
Received: 3 March 2017 / Revised: 3 April 2017 / Accepted: 4 April 2017 / Published: 12 April 2017
(This article belongs to the Special Issue Pulses)
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The F-box family is one of the largest gene families in plants that regulate diverse life processes, including salt responses. However, the knowledge of the soybean F-box genes and their roles in salt tolerance remains limited. Here, we conducted a genome-wide survey of the soybean F-box family, and their expression analysis in response to salinity via in silico analysis of online RNA-sequencing (RNA-seq) data and quantitative reverse-transcription polymerase chain reaction (qRT-PCR) to predict their potential functions. A total of 725 potential F-box proteins encoded by 509 genes were identified and classified into 9 subfamilies. The gene structures, conserved domains and chromosomal distributions were characterized. There are 76 pairs of duplicate genes identified, including genome-wide segmental and tandem duplication events, which lead to the expansion of the number of F-box genes. The in silico expression analysis showed that these genes would be involved in diverse developmental functions and play an important role in salt response. Our qRT-PCR analysis confirmed 12 salt-responding F-box genes. Overall, our results provide useful information on soybean F-box genes, especially their potential roles in salt tolerance. View Full-Text
Keywords: soybean; F-box gene family; expression patterns; salt stress soybean; F-box gene family; expression patterns; salt stress

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Jia, Q.; Xiao, Z.-X.; Wong, F.-L.; Sun, S.; Liang, K.-J.; Lam, H.-M. Genome-Wide Analyses of the Soybean F-Box Gene Family in Response to Salt Stress. Int. J. Mol. Sci. 2017, 18, 818.

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