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Genome-Wide Identification of the Ginkgo (Ginkgo biloba L.) LBD Transcription Factor Gene and Characterization of Its Expression

Co-Innovation Center for Sustainable Forestry in Southern China, Key Laboratory of Forest Genetics and Biotechnology of Ministry of Education, Nanjing Forestry University, Nanjing 210037, China
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Academic Editor: Frank M. You
Int. J. Mol. Sci. 2022, 23(10), 5474; https://doi.org/10.3390/ijms23105474
Received: 31 March 2022 / Revised: 24 April 2022 / Accepted: 10 May 2022 / Published: 13 May 2022
(This article belongs to the Special Issue Plant Genomics and Genome Editing 2.0)
Lateral organ boundaries domain (LBD) proteins are plant-specific transcription factors involved in various transcriptional regulation processes. We identified a total of 37 GbLBD genes in ginkgo, and based on gene structure and phylogenetic analysis, the GbLBD gene family was classified into class I (33, with the largest number of Id genes (16)) and class II (4). The ginkgo LBD gene was also analyzed regarding its chromosomal distributions, gene duplications, promoters, and introns/exons. In addition, gene expression profiling and real-time quantitative PCR analysis showed that the expression of 14 GbLBD genes differed in six different tissues and three developmental stages. The GbLBD gene of class II were highly expressed relative to the class I gene in all tissues and developmental stages, while class Id gene were generally at low levels or were not expressed, especially in seed developmental stages. The expression pattern analysis of cold/drought treatment and IAA/ABA hormone treatment showed that abiotic stress treatment could significantly induce the expression of GbLBD gene, of which class II genes played a key role in stress treatment. Our study provides a solid foundation for further evolutionary and functional analysis of the ginkgo LBD gene family. View Full-Text
Keywords: Ginkgo biloba; LBD gene family; expression pattern; stress physiology Ginkgo biloba; LBD gene family; expression pattern; stress physiology
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MDPI and ACS Style

Tian, Y.; Han, X.; Qu, Y.; Zhang, Y.; Rong, H.; Wu, K.; Xu, L. Genome-Wide Identification of the Ginkgo (Ginkgo biloba L.) LBD Transcription Factor Gene and Characterization of Its Expression. Int. J. Mol. Sci. 2022, 23, 5474. https://doi.org/10.3390/ijms23105474

AMA Style

Tian Y, Han X, Qu Y, Zhang Y, Rong H, Wu K, Xu L. Genome-Wide Identification of the Ginkgo (Ginkgo biloba L.) LBD Transcription Factor Gene and Characterization of Its Expression. International Journal of Molecular Sciences. 2022; 23(10):5474. https://doi.org/10.3390/ijms23105474

Chicago/Turabian Style

Tian, Yating, Xin Han, Yanshu Qu, Yifan Zhang, Hao Rong, Kai Wu, and Li’an Xu. 2022. "Genome-Wide Identification of the Ginkgo (Ginkgo biloba L.) LBD Transcription Factor Gene and Characterization of Its Expression" International Journal of Molecular Sciences 23, no. 10: 5474. https://doi.org/10.3390/ijms23105474

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