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Turkish Journal of Agriculture and Forestry

Author ORCID Identifier

FATMA NUR AVCI: 0009-0007-1903-5878

TARIK KIRLIOĞLU: 0000-0003-1494-0581

AYBÜKE OKAY: 0000-0002-6772-4316

EMİNE SÜMER ARAS: 0000-0003-3474-9493

İLKER BÜUYÜK: 0000-0002-0843-8299

DOI

10.55730/1300-011X.3230

Abstract

Drought represents a major global threat to the environment, thus leading to food insecurity. Transcription factors (TFs) have a significant role in regulating the expression of stress-related genes. TALE genes, a type of TF, are known to regulate important biological processes like the maintenance of shoot apical meristems and root formation in plants. In this study, 35 TALE genes were identified and they were found to be categorized into KNOX-like homeodomain (KNOX) and BLH/BELL-like subfamilies in Phaseolus vulgaris according to the phylogenetic analysis. The detailed characterization of PvTALE genes using in silico analyzes further showed that segmental duplications predominate in the evolution of TALE subfamilies and greatly contribute to the large-scale amplification of the gene family. Gene duplications, syntenic relationships, and Ka/Ks ratio suggest an intense purifying selection pressure during evolution of PvTALEs. Furthermore, it was discovered that PvTALEs are regulated by a number miRNAs and cis-elements which are playing important roles in stress response signaling pathways in plants. PvTALE genes showed tissue specific expression patterns and were found to be differentially expressed in response to drought stress conditions. Proline levels were measured in different tissues of P. vulgaris and were found to be accumulated under drought stress. Based on the obtained findings, it could be concluded that PvTALE genes may contribute to plant growth and drought stress resistance. The basis of the roles and resistance mechanisms of the PvTALE gene family were clarified with this first complete genome-wide study of its kind in P. vulgaris.

Keywords

Common bean (P. vulgaris L.), expression profiling, genome-wide analysis, TALE gene family, transcriptomic analysis

First Page

911

Last Page

926

Creative Commons License

Creative Commons Attribution 4.0 International License
This work is licensed under a Creative Commons Attribution 4.0 International License.

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