Phenotypic variation and correlations between monoploids and doubled monoploids of Solanum phureja

M'Ribu, H. Kaburu; Veilleux, Richard E.

doi:10.1007/bf00023004

Cited by 4 publications

(2 citation statements)

References 22 publications

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“…Its PB1 domain is followed by two additional domains, Prefoldin_2 (PF01920.23) and TatA_B_E (PF02416. 19). We performed a special investigation, which has shown that the emergence of such a complex gene may be associated with the fusion of the StIAA3 gene with two neighboring genes, LOC102582738 (probable prefoldin subunit 4) and LOC102583072 (sec-independent translocase protein TATA, chloroplastic).…”

Section: Genes/proteins Related To Canonical Auxin Signaling In Potatomentioning

confidence: 99%

“…Many varieties of Phureja are heterozygous 2 of 32 diploids, but for breeding purposes, the generation of haploid lines was often followed by homozygous double monoploids (DMs) [18]. Comparison of Phureja haploid lines with cognate DM showed considerable similarity in most phenotypic traits (number and size of flowers and number of tubers) in each pair, although the main organs in DM were somewhat larger [19]. The tubers in DM R44 are strongly elongated spindle-shaped, although the commercial Phureja cultivars have traditional rounded tubers.…”

Section: Introductionmentioning

confidence: 99%

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Canonical and Alternative Auxin Signaling Systems in Mono-, Di-, and Tetraploid Potatoes

Lomin

Kolachevskaya

Arkhipov

et al. 2023

IJMS

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It has long been known that the phytohormone auxin plays 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 analyses of deduced proteins were supplemented by expression profiling and 3D molecular modeling. The canonical and ABP1-mediated pathways of auxin signaling appeared to be well conserved. The total number of potato genes/proteins presumably involved in canonical auxin signaling is 46 and 108 in monoploid DM and tetraploid Otava, respectively. Among the studied potatoes, spectra of expressed genes obviously associated with auxin signaling were partly cultivar-specific and quite different from analogous spectrum in Arabidopsis. Most of the noncanonical pathways found in Arabidopsis appeared to have low probability in potato. This was equally true for all cultivars used irrespective of their ploidy. Thus, some important features of the (noncanonical) auxin signaling pathways may be variable and species-specific.

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Section: Genes/proteins Related To Canonical Auxin Signaling In Potatomentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%