Tolerance Even to Lethal Strain of Potato Spindle Tuber Viroid Found in Wild Tomato Species Can Be Introduced by Crossing
To date, natural resistance or tolerance, which can be introduced into crops by crossing, to potato spindle tuber viroid (PSTVd) has not been reported. Additionally, responses to PSTVd infection in many wild tomato species, including some species that can be crossed with PSTVd-susceptible cultivated...
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MDPI AG
2021-03-01
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| Series: | Plants |
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| Online Access: | https://www.mdpi.com/2223-7747/10/3/575 |
| _version_ | 1797540894561271808 |
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| author | Takashi Naoi Tatsuji Hataya |
| author_facet | Takashi Naoi Tatsuji Hataya |
| author_sort | Takashi Naoi |
| collection | DOAJ |
| description | To date, natural resistance or tolerance, which can be introduced into crops by crossing, to potato spindle tuber viroid (PSTVd) has not been reported. Additionally, responses to PSTVd infection in many wild tomato species, including some species that can be crossed with PSTVd-susceptible cultivated tomatoes (<i>Solanum lycopersicum</i> var. <i>lycoperaicum</i>), have not been ascertained. The aim of this study was to evaluate responses to PSTVd infection including resistance and tolerance. Accordingly, we inoculated several cultivated and wild tomato species with intermediate and lethal strains of PSTVd. None of the host plants exhibited sufficient resistance to PSTVd to render systemic infection impossible; however, these plants displayed other responses, including tolerance. Further analysis of PSTVd accumulation revealed low accumulation of PSTVd in two wild species, exhibiting high tolerance, even to the lethal strain. Additionally, F1 hybrids generated by crossing a PSTVd-sensitive wild tomato (<i>Solanum lycopersicum</i> var. <i>cerasiforme</i>) with these wild relatives also exhibited tolerance to the lethal PSTVd strain, which is accompanied by low PSTVd accumulation during early infection. These results indicate that the tolerance toward PSTVd in wild species is a dominant trait and can be utilized for tomato breeding by crossing. |
| first_indexed | 2024-03-10T13:07:33Z |
| format | Article |
| id | doaj.art-35ea6ca143d445c8a27cf9960fe0562e |
| institution | Directory Open Access Journal |
| issn | 2223-7747 |
| language | English |
| last_indexed | 2024-03-10T13:07:33Z |
| publishDate | 2021-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Plants |
| spelling | doaj.art-35ea6ca143d445c8a27cf9960fe0562e2023-11-21T11:00:18ZengMDPI AGPlants2223-77472021-03-0110357510.3390/plants10030575Tolerance Even to Lethal Strain of Potato Spindle Tuber Viroid Found in Wild Tomato Species Can Be Introduced by CrossingTakashi Naoi0Tatsuji Hataya1Pathogen-Plant Interactions, Graduate School of Agriculture, Hokkaido University, Kita 9, Nishi 9, Kita-ku, Sapporo 060-8589, JapanPathogen-Plant Interactions, Research Faculty of Agriculture, Hokkaido University, Kita 9, Nishi 9, Kita-ku, Sapporo 060-8589, JapanTo date, natural resistance or tolerance, which can be introduced into crops by crossing, to potato spindle tuber viroid (PSTVd) has not been reported. Additionally, responses to PSTVd infection in many wild tomato species, including some species that can be crossed with PSTVd-susceptible cultivated tomatoes (<i>Solanum lycopersicum</i> var. <i>lycoperaicum</i>), have not been ascertained. The aim of this study was to evaluate responses to PSTVd infection including resistance and tolerance. Accordingly, we inoculated several cultivated and wild tomato species with intermediate and lethal strains of PSTVd. None of the host plants exhibited sufficient resistance to PSTVd to render systemic infection impossible; however, these plants displayed other responses, including tolerance. Further analysis of PSTVd accumulation revealed low accumulation of PSTVd in two wild species, exhibiting high tolerance, even to the lethal strain. Additionally, F1 hybrids generated by crossing a PSTVd-sensitive wild tomato (<i>Solanum lycopersicum</i> var. <i>cerasiforme</i>) with these wild relatives also exhibited tolerance to the lethal PSTVd strain, which is accompanied by low PSTVd accumulation during early infection. These results indicate that the tolerance toward PSTVd in wild species is a dominant trait and can be utilized for tomato breeding by crossing.https://www.mdpi.com/2223-7747/10/3/575potato spindle tuber viroidtomatowild tomato speciestoleranceF1 hybridcrossing and breeding |
| spellingShingle | Takashi Naoi Tatsuji Hataya Tolerance Even to Lethal Strain of Potato Spindle Tuber Viroid Found in Wild Tomato Species Can Be Introduced by Crossing Plants potato spindle tuber viroid tomato wild tomato species tolerance F1 hybrid crossing and breeding |
| title | Tolerance Even to Lethal Strain of Potato Spindle Tuber Viroid Found in Wild Tomato Species Can Be Introduced by Crossing |
| title_full | Tolerance Even to Lethal Strain of Potato Spindle Tuber Viroid Found in Wild Tomato Species Can Be Introduced by Crossing |
| title_fullStr | Tolerance Even to Lethal Strain of Potato Spindle Tuber Viroid Found in Wild Tomato Species Can Be Introduced by Crossing |
| title_full_unstemmed | Tolerance Even to Lethal Strain of Potato Spindle Tuber Viroid Found in Wild Tomato Species Can Be Introduced by Crossing |
| title_short | Tolerance Even to Lethal Strain of Potato Spindle Tuber Viroid Found in Wild Tomato Species Can Be Introduced by Crossing |
| title_sort | tolerance even to lethal strain of potato spindle tuber viroid found in wild tomato species can be introduced by crossing |
| topic | potato spindle tuber viroid tomato wild tomato species tolerance F1 hybrid crossing and breeding |
| url | https://www.mdpi.com/2223-7747/10/3/575 |
| work_keys_str_mv | AT takashinaoi toleranceeventolethalstrainofpotatospindletuberviroidfoundinwildtomatospeciescanbeintroducedbycrossing AT tatsujihataya toleranceeventolethalstrainofpotatospindletuberviroidfoundinwildtomatospeciescanbeintroducedbycrossing |