Global 5-methylcytosine alterations in DNA during ageing of seeds

This study finds that DNA methylation and 5-methylcytosine play key roles in determining the ageing and viability of stored recalcitrant seeds.
Global 5-methylcytosine alterations in DNA during ageing of seeds
Global 5-methylcytosine alterations in DNA during ageing of seeds

Epigenetic regulation plays an important role in the management of plant growth and development, and several reports have indicated that DNA methylation plays a critical role in seed development and viability. Michalak et al. study mature seeds of oak, Quercus robur, and find that an ageing-related decrease in total 5-methylcytosine during storage of recalcitrant seeds is highly and significantly correlated with a decrease in seed viability. Moreover, a significant difference is demonstrated between DNA methylation dynamics in orthodox and recalcitrant seeds. These findings advance our understanding of the mechanisms underlying the differences between the viability of recalcitrant and orthodox seeds during storage.

Further reading

Marcin Michalak, Beata P. Plitta-Michalak, Mirosława Naskręt-Barciszewska, Jan Barciszewski, Barbara Bujarska-Borkowska, Paweł Chmielarz, 2015, ' Global 5-methylcytosine alterations in DNA during ageing of Quercus robur seeds ', Annals of Botany, vol. 116, no. 3, pp. 369-376 http://dx.doi.org/10.1093/aob/mcv104