Version 1
: Received: 13 May 2023 / Approved: 15 May 2023 / Online: 15 May 2023 (09:02:05 CEST)
Version 2
: Received: 9 July 2023 / Approved: 10 July 2023 / Online: 10 July 2023 (10:50:02 CEST)
Lomin, S.N.; Kolachevskaya, O.O.; Arkhipov, D.V.; Romanov, G.A. Canonical and Alternative Auxin Signaling Systems in Mono-, Di-, and Tetraploid Potatoes. Int. J. Mol. Sci.2023, 24, 11408.
Lomin, S.N.; Kolachevskaya, O.O.; Arkhipov, D.V.; Romanov, G.A. Canonical and Alternative Auxin Signaling Systems in Mono-, Di-, and Tetraploid Potatoes. Int. J. Mol. Sci. 2023, 24, 11408.
Lomin, S.N.; Kolachevskaya, O.O.; Arkhipov, D.V.; Romanov, G.A. Canonical and Alternative Auxin Signaling Systems in Mono-, Di-, and Tetraploid Potatoes. Int. J. Mol. Sci.2023, 24, 11408.
Lomin, S.N.; Kolachevskaya, O.O.; Arkhipov, D.V.; Romanov, G.A. Canonical and Alternative Auxin Signaling Systems in Mono-, Di-, and Tetraploid Potatoes. Int. J. Mol. Sci. 2023, 24, 11408.
Abstract
It has long been known that auxins play a promoting role in tuber formation and stress tolerance in potatoes. Our study aimed to identify and characterize the complete sets of auxin-related genes that presumably constitute the entire auxin signaling system in potato (Solanum tuberosum L.). The corresponding genes were retrieved from sequenced genomes of the doubled monoploid S. tuberosum DM1-3-516-R44 (DM) of the Phureja group, the heterozygous diploid line RH89-039-16 (RH), and the autotetraploid cultivar Otava. Both canonical and noncanonical auxin signaling pathways were considered. Phylogenetic and domain analyzes of deduced proteins were supplemented by their expression profiling and 3D molecular modeling. Total number of potato genes/proteins involved in canonical auxin signaling is 43and 100 for monoploid DM and tetraploid Otava, respectively. Among studied potatoes, spectra of expressed genes associated with auxin signaling were partly cultivar-specific and quite different from analogous spectrum in Arabidopsis. Orthologs of noncanonical auxin signaling genes have also been identified and characterized in detail. Results show that some known noncanonical pathways are low probable in potato. Thus, according to cumulative data, potatoes use a variety of pathways for auxin signaling, where some important features of these pathways may be variable and even species-specific.
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