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Identification and Characterization of the Expansin Genes in Triticum urartu in Response to Various Phytohormones

  • PLANT GENETICS
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Abstract

Expansins are ancient proteins involved in cell wall loosening during diverse biological processes in plants. They may participate inplant developmental processes and in responses to multiple external stresses. Triticum urartu is a diploid wheat, which is the A genome donor in hexaploid wheat (AABBDD). Wheat is an important agricultural crop. In this study, a total of 39 expansin (EXP) genes in T. urartu were identified and categorised into three subfamilies according to their phylogenetic relationship, consisting of 19 EXPA genes, 18 EXPB genes and 2 EXLA genes, but no EXLB genes. The structures of T. urartu EXP (TuEXP) genes were conserved. Expression analysis and transcript profiling revealed differential expression of TuEXPs in different tissues and developmental stages. Expression patterns of TuEXPs genes were also investigated in different tissues under different phytohormone treatments at the three leafstage. The expression of most of the analyzed genes were either up-or down-regulated, which could help research on expansin-related mechanisms.

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ACKONWLEDGMENTS

This research was funded by Capability improving and scientific research training project in the talent training fund of national natural science fund (J1210069). Thank the National Crop Germplasm Bank for providing seeds.

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Authors and Affiliations

  1. College of Life Science, Northeast Agricultural Univerisity, Xiangfang District, 150030, Harbin, Heilongjiang, China

    L. Peng, Yo. Xu, X. Feng, Ju. Zhang, Ji. Dong, Sh. Yao, Zh. Feng, Q. Zhao, Sh. Feng, F. Li & B. Hu

  2. Harbin University, Nangang District, 150086, Harbin, Heilongjiang, China

    B. Hu

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  1. L. Peng
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Peng, L., Xu, Y., Feng, X. et al. Identification and Characterization of the Expansin Genes in Triticum urartu in Response to Various Phytohormones. Russ J Genet 56, 441–453 (2020). https://doi.org/10.1134/S1022795420040109

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