PJB-2021-645
Bioinformatics analysis and gene expression patterns of YABBY gene in poplar under heat, osmotic, and salt stress
Shenmeng Wang, Qingxin Dong and Chengjun Yang
Abstract
YABBY is a plant-specific and widely distributed transcription factor involved in the regulation of plant growth and development and plays an important role in plant response to environmental stress. In this study, 33 genes encoding YABBY family transcription factors were identified from Populus trichocarpa, and these YABBY genes were divided into 4 subfamilies. The physicochemical properties showed that the YABBY protein family members were between 133aa-244aa in length, rich in acidic amino acids, and had high thermal stability and localization in the nucleus. The genes are unevenly distributed on 9 chromosomes, and there is a phenomenon of aggregate distribution on the chromosomes. During the evolution of genes, homologous recombination and tandem replication events occurred, including three significant tandem repeat regions and four defined chromosome homologous recombinations. Expression of YABBY gene in mature leaves, young leaves, roots, xylem, female flowers, male flowers, and seeds during germination of P. trichocarpa. Most of the YABBY gene is expressed in young leaves and seedlings. It is speculated that these genes mainly function in these two parts, and there are some differences in the expression levels of each member in each tissue and growth process. The expression of three abiotic stresses (heat, salt, and infiltration) in 10 selected genes of Populus simonii×P. nigra was further studied by real-time quantitative PCR to better understand the function and regulation mechanism of YABBY family transcription factors
To Cite this article:
Wang, S., Q. Dong and C. Yang. 2023. Bioinformatics analysis and gene expression patterns of YABBY gene in poplar under heat, osmotic, and salt stress. Pak. J. Bot., 55(2): DOI: http://dx.doi.org/10.30848/PJB2023-2(20)
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