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RSS FeedsIJMS, Vol. 19, Pages 3542: DNA Methylation Analysis of Dormancy Release in Almond (Prunus dulcis) Flower Buds Using Epi-Genotyping by Sequencing (International Journal of Molecular Sciences)

 
 

10 november 2018 15:02:02

 
IJMS, Vol. 19, Pages 3542: DNA Methylation Analysis of Dormancy Release in Almond (Prunus dulcis) Flower Buds Using Epi-Genotyping by Sequencing (International Journal of Molecular Sciences)
 




DNA methylation and histone post-translational modifications have been described as epigenetic regulation mechanisms involved in developmental transitions in plants, including seasonal changes in fruit trees. In species like almond (Prunus dulcis (Mill.) D.A: Webb), prolonged exposure to cold temperatures is required for dormancy release and flowering. Aiming to identify genomic regions with differential methylation states in response to chill accumulation, we carried out Illumina reduced-representation genome sequencing on bisulfite-treated DNA from floral buds. To do this, we analyzed almond genotypes with different chilling requirements and flowering times both before and after dormancy release for two consecutive years. The study was performed using epi-Genotyping by Sequencing (epi-GBS). A total of 7317 fragments were sequenced and the samples compared. Out of these fragments, 677 were identified as differentially methylated between the almond genotypes. Mapping these fragments using the Prunus persica (L.) Batsch v.2 genome as reference provided information about coding regions linked to early and late flowering methylation markers. Additionally, the methylation state of ten gene-coding sequences was found to be linked to the dormancy release process.


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14 viewsCategory: Biochemistry, Biophysics, Molecular Biology
 
IJMS, Vol. 19, Pages 3543: Inhibition of Microglia-Derived Oxidative Stress by Ciliary Neurotrophic Factor Protects Dopamine Neurons In Vivo from MPP+ Neurotoxicity (International Journal of Molecular Sciences)
IJMS, Vol. 19, Pages 3541: Retraction: Yang, C., et al. miR-126 Functions as a Tumor Suppressor in Osteosarcoma by Targeting Sox2. Int. J. Mol. Sci. 2014, 15, 423-437, doi:10.3390/ijms15010423 (International Journal of Molecular Sciences)
 
 
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