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  Unravelling Differences in Candidate Genes for Drought Tolerance in Potato (Solanum tuberosum L.) by Use of New Functional Microsatellite Markers

Schumacher, C., Krannich, C. T., Maletzki, L., Koehl, K. I., Kopka, J., Sprenger, H., et al. (2021). Unravelling Differences in Candidate Genes for Drought Tolerance in Potato (Solanum tuberosum L.) by Use of New Functional Microsatellite Markers. Genes, 12(4): 494. doi:10.3390/genes12040494.

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Schumacher, Christina1, Autor
Krannich, Christoph Tim1, Autor
Maletzki, Lisa1, Autor
Koehl, K. I.2, Autor           
Kopka, J.3, Autor           
Sprenger, H.4, Autor           
Hincha, D. K.4, Autor           
Seddig, Sylvia1, Autor
Peters, Rolf1, Autor
Hamera, Sadia1, Autor
Zuther, E.4, Autor           
Haas, M.2, Autor           
Horn, Renate1, Autor
Affiliations:
1External Organizations, ou_persistent22              
2Plant Cultivation and Transformation, Infrastructure Groups and Service Units, Max Planck Institute of Molecular Plant Physiology, Max Planck Society, ou_1753305              
3Applied Metabolome Analysis, Department Willmitzer, Max Planck Institute of Molecular Plant Physiology, Max Planck Society, ou_1753338              
4Transcript Profiling, Infrastructure Groups and Service Units, Max Planck Institute of Molecular Plant Physiology, Max Planck Society, ou_1753306              

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 Zusammenfassung: Potato is regarded as drought sensitive and most vulnerable to climate changes. Its cultivation in drought prone regions or under conditions of more frequent drought periods, especially in subtropical areas, requires intensive research to improve drought tolerance in order to guarantee high yields under limited water supplies. A candidate gene approach was used to develop functional simple sequence repeat (SSR) markers for association studies in potato with the aim to enhance breeding for drought tolerance. SSR primer combinations, mostly surrounding interrupted complex and compound repeats, were derived from 103 candidate genes for drought tolerance. Validation of the SSRs was performed in an association panel representing 34 mainly starch potato cultivars. Seventy-five out of 154 SSR primer combinations (49) resulted in polymorphic, highly reproducible banding patterns with polymorphic information content (PIC) values between 0.11 and 0.90. Five SSR markers identified allelic differences between the potato cultivars that showed significant associations with drought sensitivity. In all cases, the group of drought-sensitive cultivars showed predominantly an additional allele, indicating that selection against these alleles by marker-assisted breeding might confer drought tolerance. Further studies of these differences in the candidate genes will elucidate their role for an improved performance of potatoes under water-limited conditions.

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Sprache(n): eng - English
 Datum: 2021
 Publikationsstatus: Erschienen
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 Ort, Verlag, Ausgabe: -
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 Art der Begutachtung: -
 Identifikatoren: DOI: 10.3390/genes12040494
BibTex Citekey: genes12040494
 Art des Abschluß: -

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Titel: Genes
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: Basel, Switzerland : MDPI AG
Seiten: - Band / Heft: 12 (4) Artikelnummer: 494 Start- / Endseite: - Identifikator: ISSN: 2073-4425
CoNE: https://pure.mpg.de/cone/journals/resource/2073-4425