Comparative proteomic analysis provides new insights into regulation of microspore embryogenesis induction in winter triticale (x Triticosecale Wittm.) after 5-azacytidine treatment

0553335 - ÚEB 2022 RIV GB eng J - Journal Article
Krzewska, M. - Dubas, E. - Gołębiowska, G. - Nowicka, Anna - Janas, A. - Zieliński, K. - Surówka, E. - Kopeć, P. - Mielczarek, K. - Żur, I.
Comparative proteomic analysis provides new insights into regulation of microspore embryogenesis induction in winter triticale (x Triticosecale Wittm.) after 5-azacytidine treatment.
Scientific Reports. Roč. 11, č. 1 (2021), č. článku 22215. ISSN 2045-2322. E-ISSN 2045-2322
Institutional support: RVO:61389030
Keywords : gene-expression * stress * subfamily * patterns * anthers * androgenesis * barley * wheat
OECD category: Plant sciences, botany
Impact factor: 4.997, year: 2021
Method of publishing: Open access
http://doi.org/10.1038/s41598-021-01671-y

Effective microspore embryogenesis (ME) requires substantial modifications in gene expression pattern, followed by changes in the cell proteome and its metabolism. Recent studies have awakened also interest in the role of epigenetic factors in microspore de-differentiation and reprogramming. Therefore, demethylating agent (2.5-10 mu M 5-azacytidine, AC) together with low temperature (3 weeks at 4 degrees C) were used as ME-inducing tiller treatment in two doubled haploid (DH) lines of triticale and its effect was analyzed in respect of anther protein profiles, expression of selected genes (TAPETUM DETERMINANT1 (TaTPD1-like), SOMATIC EMBRYOGENESIS RECEPTOR KINASE 2 (SERK2) and GLUTATHIONE S-TRANSFERASE (GSTF2)) and ME efficiency. Tiller treatment with 5.0 mu M AC was the most effective in ME induction, it was associated with (1) suppression of intensive anabolic processes-mainly photosynthesis and light-dependent reactions, (2) transition to effective catabolism and mobilization of carbohydrate reserve to meet the high energy demand of cells during microspore reprograming and (3) effective defense against stress-inducing treatment, i.e. protection of proper folding during protein biosynthesis and effective degradation of dysfunctional or damaged proteins. Additionally, 5.0 mu M AC enhanced the expression of all genes previously identified as being associated with embryogenic potential of microspores (TaTPD1-like, SERK and GSTF2).
Permanent Link: http://hdl.handle.net/11104/0328292