Epigenetic Modifications Related to Potato Skin Russeting
Potato tuber skin is a protective corky tissue consisting of suberized phellem cells. Smooth-skinned varieties are characterized by a clean, shiny appearance compared to the darker hue of russeted potatoes. The rough skin of russeted cultivars is a desired, genetically inherited characteristic; howe...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-05-01
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| Series: | Plants |
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| Online Access: | https://www.mdpi.com/2223-7747/12/10/2057 |
| _version_ | 1797598501214879744 |
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| author | Pawan Kumar Yulia Kaplan Jeffrey B. Endelman Idit Ginzberg |
| author_facet | Pawan Kumar Yulia Kaplan Jeffrey B. Endelman Idit Ginzberg |
| author_sort | Pawan Kumar |
| collection | DOAJ |
| description | Potato tuber skin is a protective corky tissue consisting of suberized phellem cells. Smooth-skinned varieties are characterized by a clean, shiny appearance compared to the darker hue of russeted potatoes. The rough skin of russeted cultivars is a desired, genetically inherited characteristic; however, unwanted russeting of smooth-skinned cultivars often occurs under suboptimal growth conditions. The involvement of epigenetic modifiers in regulating the smooth skin russeting disorder was tested. We used smooth-skin commercial cultivars with and without the russeting disorder and three lines from a breeding population segregating for russeting. Anatomically, the russet skin showed similar characteristics, whether the cause was environmentally triggered or genetically determined. The old outer layers of the corky phellem remain attached to the newly formed phellem layers instead of being sloughed off. Global DNA methylation analysis indicated a significant reduction in the percentage of 5-methylcytosine in mature vs. immature skin and russet vs. smooth skin. This was true for both the smooth-skin commercial cultivars and the russeted lines. The expression level of selected DNA methyltransferases was reduced in accordance. DNA demethylase expression did not change between the skin types and age. Hence, the reduced DNA methylation in mature and russet skin is more likely to be achieved through passive DNA demethylation and loss of methyltransferase activity. |
| first_indexed | 2024-03-11T03:23:01Z |
| format | Article |
| id | doaj.art-03183bd5d2fa47619747dfe2b69e760e |
| institution | Directory Open Access Journal |
| issn | 2223-7747 |
| language | English |
| last_indexed | 2024-03-11T03:23:01Z |
| publishDate | 2023-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Plants |
| spelling | doaj.art-03183bd5d2fa47619747dfe2b69e760e2023-11-18T02:57:01ZengMDPI AGPlants2223-77472023-05-011210205710.3390/plants12102057Epigenetic Modifications Related to Potato Skin RussetingPawan Kumar0Yulia Kaplan1Jeffrey B. Endelman2Idit Ginzberg3Institute of Plant Sciences, Agricultural Research Organization, Volcani Institute, 68 HaMacabim Road, P.O. Box 15159, Rishon LeZion 7505101, IsraelInstitute of Plant Sciences, Agricultural Research Organization, Volcani Institute, 68 HaMacabim Road, P.O. Box 15159, Rishon LeZion 7505101, IsraelDepartment of Horticulture, University of Wisconsin-Madison, Madison, WI 53706, USAInstitute of Plant Sciences, Agricultural Research Organization, Volcani Institute, 68 HaMacabim Road, P.O. Box 15159, Rishon LeZion 7505101, IsraelPotato tuber skin is a protective corky tissue consisting of suberized phellem cells. Smooth-skinned varieties are characterized by a clean, shiny appearance compared to the darker hue of russeted potatoes. The rough skin of russeted cultivars is a desired, genetically inherited characteristic; however, unwanted russeting of smooth-skinned cultivars often occurs under suboptimal growth conditions. The involvement of epigenetic modifiers in regulating the smooth skin russeting disorder was tested. We used smooth-skin commercial cultivars with and without the russeting disorder and three lines from a breeding population segregating for russeting. Anatomically, the russet skin showed similar characteristics, whether the cause was environmentally triggered or genetically determined. The old outer layers of the corky phellem remain attached to the newly formed phellem layers instead of being sloughed off. Global DNA methylation analysis indicated a significant reduction in the percentage of 5-methylcytosine in mature vs. immature skin and russet vs. smooth skin. This was true for both the smooth-skin commercial cultivars and the russeted lines. The expression level of selected DNA methyltransferases was reduced in accordance. DNA demethylase expression did not change between the skin types and age. Hence, the reduced DNA methylation in mature and russet skin is more likely to be achieved through passive DNA demethylation and loss of methyltransferase activity.https://www.mdpi.com/2223-7747/12/10/2057corkDNA methylationepigenetic regulationperidermphellemphellogen |
| spellingShingle | Pawan Kumar Yulia Kaplan Jeffrey B. Endelman Idit Ginzberg Epigenetic Modifications Related to Potato Skin Russeting Plants cork DNA methylation epigenetic regulation periderm phellem phellogen |
| title | Epigenetic Modifications Related to Potato Skin Russeting |
| title_full | Epigenetic Modifications Related to Potato Skin Russeting |
| title_fullStr | Epigenetic Modifications Related to Potato Skin Russeting |
| title_full_unstemmed | Epigenetic Modifications Related to Potato Skin Russeting |
| title_short | Epigenetic Modifications Related to Potato Skin Russeting |
| title_sort | epigenetic modifications related to potato skin russeting |
| topic | cork DNA methylation epigenetic regulation periderm phellem phellogen |
| url | https://www.mdpi.com/2223-7747/12/10/2057 |
| work_keys_str_mv | AT pawankumar epigeneticmodificationsrelatedtopotatoskinrusseting AT yuliakaplan epigeneticmodificationsrelatedtopotatoskinrusseting AT jeffreybendelman epigeneticmodificationsrelatedtopotatoskinrusseting AT iditginzberg epigeneticmodificationsrelatedtopotatoskinrusseting |