Increased epigenetic diversity and transient epigenetic memory in response to salinity stress in Thlaspi arvense
Abstract Epigenetic diversity could play an important role in adaptive evolution of organisms, especially for plant species occurring in new and stressful environments. Thlaspi arvense (field pennycress), a valuable oilseed crop, is widespread in temperate regions of the northern hemisphere. In this...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2020-10-01
|
| Series: | Ecology and Evolution |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/ece3.6795 |
| _version_ | 1798013790071029760 |
|---|---|
| author | Yupeng Geng Na Chang Yuewan Zhao Xiaoying Qin Shugang Lu M. James C. Crabbe Yabin Guan Ticao Zhang |
| author_facet | Yupeng Geng Na Chang Yuewan Zhao Xiaoying Qin Shugang Lu M. James C. Crabbe Yabin Guan Ticao Zhang |
| author_sort | Yupeng Geng |
| collection | DOAJ |
| description | Abstract Epigenetic diversity could play an important role in adaptive evolution of organisms, especially for plant species occurring in new and stressful environments. Thlaspi arvense (field pennycress), a valuable oilseed crop, is widespread in temperate regions of the northern hemisphere. In this study, we investigated the effect of salinity stress on the epigenetic variation of DNA methylation and epigenetic stress memory in pennycress using methylation‐sensitive amplification polymorphism (MSAP) markers. We examined how the status of DNA methylation changes across individuals in response to salinity stress and whether such an effect of maternal stress could be transferred to offspring for one or two generations in nonstressed environments. Our results based on 306 epiloci indicated no consistent change of DNA methylation status in specific epiloci across individuals within the same conditions. In contrast, we found that the epigenetic diversity at population level increased significantly in response to the stimulation of salinity stress; and this “stimulation effect” could be transferred partially in the form of stress memory to at least two generations of offspring in nonstressed environments. In addition, we observed a parallel change in functionally important traits, that is, phenotypic variation was significantly higher in plants grown under salinity stress compared with those of control groups. Taken together, our results provide novel clues for the increased spontaneous epimutation rate in response to stress in plants, of potential adaptive significance. |
| first_indexed | 2024-04-11T15:08:28Z |
| format | Article |
| id | doaj.art-68f021d282844342af6ce59aa8b5f643 |
| institution | Directory Open Access Journal |
| issn | 2045-7758 |
| language | English |
| last_indexed | 2024-04-11T15:08:28Z |
| publishDate | 2020-10-01 |
| publisher | Wiley |
| record_format | Article |
| series | Ecology and Evolution |
| spelling | doaj.art-68f021d282844342af6ce59aa8b5f6432022-12-22T04:16:44ZengWileyEcology and Evolution2045-77582020-10-011020116221163010.1002/ece3.6795Increased epigenetic diversity and transient epigenetic memory in response to salinity stress in Thlaspi arvenseYupeng Geng0Na Chang1Yuewan Zhao2Xiaoying Qin3Shugang Lu4M. James C. Crabbe5Yabin Guan6Ticao Zhang7Institute of Ecology and Geobotany School of Ecology and Environmental Sciences Yunnan University Kunming ChinaInstitute of Ecology and Geobotany School of Ecology and Environmental Sciences Yunnan University Kunming ChinaInstitute of Ecology and Geobotany School of Ecology and Environmental Sciences Yunnan University Kunming ChinaInstitute of Ecology and Geobotany School of Ecology and Environmental Sciences Yunnan University Kunming ChinaSchool of Life Sciences Yunnan University Kunming ChinaWolfson College Oxford University UKInstitute of Ecology and Geobotany School of Ecology and Environmental Sciences Yunnan University Kunming ChinaCollege of Chinese Material Medica Yunnan University of Chinese Medicine Kunming ChinaAbstract Epigenetic diversity could play an important role in adaptive evolution of organisms, especially for plant species occurring in new and stressful environments. Thlaspi arvense (field pennycress), a valuable oilseed crop, is widespread in temperate regions of the northern hemisphere. In this study, we investigated the effect of salinity stress on the epigenetic variation of DNA methylation and epigenetic stress memory in pennycress using methylation‐sensitive amplification polymorphism (MSAP) markers. We examined how the status of DNA methylation changes across individuals in response to salinity stress and whether such an effect of maternal stress could be transferred to offspring for one or two generations in nonstressed environments. Our results based on 306 epiloci indicated no consistent change of DNA methylation status in specific epiloci across individuals within the same conditions. In contrast, we found that the epigenetic diversity at population level increased significantly in response to the stimulation of salinity stress; and this “stimulation effect” could be transferred partially in the form of stress memory to at least two generations of offspring in nonstressed environments. In addition, we observed a parallel change in functionally important traits, that is, phenotypic variation was significantly higher in plants grown under salinity stress compared with those of control groups. Taken together, our results provide novel clues for the increased spontaneous epimutation rate in response to stress in plants, of potential adaptive significance.https://doi.org/10.1002/ece3.6795adaptive evolutionDNA methylationepigenetic diversityfield pennycresssalinity stress |
| spellingShingle | Yupeng Geng Na Chang Yuewan Zhao Xiaoying Qin Shugang Lu M. James C. Crabbe Yabin Guan Ticao Zhang Increased epigenetic diversity and transient epigenetic memory in response to salinity stress in Thlaspi arvense Ecology and Evolution adaptive evolution DNA methylation epigenetic diversity field pennycress salinity stress |
| title | Increased epigenetic diversity and transient epigenetic memory in response to salinity stress in Thlaspi arvense |
| title_full | Increased epigenetic diversity and transient epigenetic memory in response to salinity stress in Thlaspi arvense |
| title_fullStr | Increased epigenetic diversity and transient epigenetic memory in response to salinity stress in Thlaspi arvense |
| title_full_unstemmed | Increased epigenetic diversity and transient epigenetic memory in response to salinity stress in Thlaspi arvense |
| title_short | Increased epigenetic diversity and transient epigenetic memory in response to salinity stress in Thlaspi arvense |
| title_sort | increased epigenetic diversity and transient epigenetic memory in response to salinity stress in thlaspi arvense |
| topic | adaptive evolution DNA methylation epigenetic diversity field pennycress salinity stress |
| url | https://doi.org/10.1002/ece3.6795 |
| work_keys_str_mv | AT yupenggeng increasedepigeneticdiversityandtransientepigeneticmemoryinresponsetosalinitystressinthlaspiarvense AT nachang increasedepigeneticdiversityandtransientepigeneticmemoryinresponsetosalinitystressinthlaspiarvense AT yuewanzhao increasedepigeneticdiversityandtransientepigeneticmemoryinresponsetosalinitystressinthlaspiarvense AT xiaoyingqin increasedepigeneticdiversityandtransientepigeneticmemoryinresponsetosalinitystressinthlaspiarvense AT shuganglu increasedepigeneticdiversityandtransientepigeneticmemoryinresponsetosalinitystressinthlaspiarvense AT mjamesccrabbe increasedepigeneticdiversityandtransientepigeneticmemoryinresponsetosalinitystressinthlaspiarvense AT yabinguan increasedepigeneticdiversityandtransientepigeneticmemoryinresponsetosalinitystressinthlaspiarvense AT ticaozhang increasedepigeneticdiversityandtransientepigeneticmemoryinresponsetosalinitystressinthlaspiarvense |