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- Title
Increased population epigenetic diversity of the clonal invasive species Alternanthera philoxeroides in response to salinity stress.
- Authors
Wen Shi; Xia Hu; Xiaojie Chen; Xiaokun Ou; Ji Yang; Yupeng Geng
- Abstract
Epigenetic modification can change the pattern of gene expression without altering the underlying DNA sequence, which may be adaptive in clonal plant species. In this study, we used MSAP (methylation-sensitive amplification polymorphism) to examine epigenetic variation in Alternanthera philoxeroides, a clonal invasive species, in response to salinity stress. We found that salinity stress could significantly increase the level of epigenetic diversity within a population. This effect increased with increasing stress duration and was specific to particular genotypes. In addition, the epigenetic modification of young plants seems less sensitive to salinity than that of mature plants. This elevated epigenetic diversity in response to environmental stress may compensate for genetic impoverishment and contribute to evolutionary potential in clonal species.
- Subjects
EPIGENETICS; ALTERNANTHERA; INTRODUCED species; GENE expression in plants; GENETIC regulation in plants; NUCLEOTIDE sequence
- Publication
Genes & Genetic Systems, 2018, Vol 93, Issue 6, p259
- ISSN
1341-7568
- Publication type
Article
- DOI
10.1266/ggs.18-00039