Identification and expression analysis under abiotic stress of the R2R3-MYB genes in Ginkgo biloba L.

Identification and expression analysis under abiotic stress of the R2R3-MYB genes in Ginkgo... The R2R3-MYB gene family is the largest MYB subfamily in plants and is involved in the regulation of plant secondary metabolism and specific morphogenesis, as well as the response to biotic and abiotic stress. However, a systematic identification and characterization of this gene family has not been carried out in Ginkgo biloba. In this study, we performed a transcriptome-wide survey from four tissues of G. biloba to determine the genetic variation and expression pattern of the R2R3-MYB genes. We analyzed 45 GbMYBs and identified 42 with a complete coding sequence via conserved motif searches. The MYB domain and other motifs in GbMYBs are highly conserved with Arabidopsis thaliana AtMYBs. Phylogenetic analysis of the GbMYBs and AtMYBs categorized the R2R3-MYBs into 26 subgroups, of which 11 subgroups included proteins from both G. biloba and Arabidopsis, and 1 subgroup was specific to G. biloba. Moreover, the GbMYBs expression patterns were analyzed in different tissues and abiotic stress conditions. The results revealed that GbMYBs were differentially expressed in various tissues and following abiotic stresses and phytohormone treatments, indicating their possible roles in biological processes and abiotic stress tolerance and adaptation. Our study demonstrated the functional diversity of the GbMYBs and will provide a foundation for future research into their biological and molecular functions. Physiology and Molecular Biology of Plants Springer Journals

Identification and expression analysis under abiotic stress of the R2R3-MYB genes in Ginkgo biloba L.

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Springer India
Copyright © 2017 by Prof. H.S. Srivastava Foundation for Science and Society
Life Sciences; Plant Sciences; Plant Physiology; Biological and Medical Physics, Biophysics; Cell Biology
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