Table 1.
Comparison of the 23 top‐ranking drought‐related genes in S. tuberosum and their homologues in Arabidopsis thaliana and Oryza sativa and the direction of the expression change during drought stress
| No. | Names of the cultivars | Potato gene | Arabidopsis gene | Rice gene | Common drought‐related genes | |
|---|---|---|---|---|---|---|
| Potato vs. Arabidopsis | Potato vs. rice | |||||
| 1 | Gwiazda/Oberon | PGSC0003DMG400001621 | AT4G38690 | LOC_Os09g36520 | ↗ | ↗ |
| 2 | PGSC0003DMG400012174 | AT1G64110 | LOC_Os01g12660 | – | ↗ | |
| 3 | PGSC0003DMG400014293* | AT5G52300 | LOC_Os10g36180 | – | ↗ | |
| 4 | PGSC0003DMG400015019 | AT5G55090 | LOC_Os02g21700 | – | nd | |
| 5 | PGSC0003DMG400024849 | AT1G77120 | LOC_Os11g10480 | – | ↗ | |
| 6 | PGSC0003DMG401015935 | AT4G33150 | LOC_Os02g54254 | – | ↗ | |
| 7 | PGSC0003DMG400000723 | AT4G34490 | LOC_Os03g51250 | – | nd | |
| 8 | PGSC0003DMG400002943 | AT3G11170 | No homologue | – | nd | |
| 9 | PGSC0003DMG400020629 | AT1G22170 | LOC_Os02g51590 | – | nd | |
| 10 | Tajfun/Owacja | PGSC0003DMG400001771 | AT3G09720 | LOC_Os07g45360 | – | ≠ |
| 11 | PGSC0003DMG400003688 | AT1G19530 | LOC_Os03g61150 | ↗ | ↗ | |
| 12 | PGSC0003DMG400005731 | AT3G18280 | LOC_Os05g47700 | ↗ | ↗ | |
| 13 | PGSC0003DMG400005917 | AT3G49400 | LOC_Os01g50690 | ↗ | nd | |
| 14 | PGSC0003DMG400008497 | AT3G51810 | LOC_Os05g28210 | – | ↗ | |
| 15 | PGSC0003DMG400019233 | AT3G20660 | LOC_Os04g53930 | ↗ | ↗ | |
| 16 | PGSC0003DMG400024093 | No homologue | LOC_Os02g33820 | nd | ↗ | |
| 17 | PGSC0003DMG400039484 | AT1G59860 | LOC_Os03g16030 | – | ↗ | |
| 18 | PGSC0003DMG400006913 | AT5G14570 | LOC_Os01g50820 | – | ↘ | |
| 19 | PGSC0003DMG400007427 | AT3G05410 | LOC_Os01g70820 | ↘ | ↘ | |
| 20 | PGSC0003DMG400008018 | AT5G09640 | LOC_Os11g27264 | – | nd | |
| 21 | PGSC0003DMG400014954 | AT4G31940 | No homologue | – | nd | |
| 22 | PGSC0003DMG400022225 | AT4G27030 | LOC_Os08g08850 | ↘ | ↘ | |
| 23 | PGSC0003DMG400023602 | AT4G16490 | LOC_Os07g39590 | ≠ | ↘ | |
Homologues were identified using Orcan software in the ComBio platform for Arabidopsis and the UniProt database for rice (http://bar.utoronto.ca/efp2/Arabidopsis/Arabidopsis_eFPBrowser2.html; http://www.combio.pl/orcan; http://www.ebi.ac.uk/gxa/home), with the potato protein as a blastp query (The UniProt Consortium, 2017; Zielezinski et al., 2017). *—transcripts found to be affected in both pairs of potato cultivars; ↗—genes up‐regulated in the three compared plant species; ↘—genes down‐regulated in the three compared plant species; nd—no data available;–—no significant changes in Arabidopsis; ≠—different directions of change in the compared plant species.