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"VERNALIZATION PATHWAYS in different plants converge on related flowering time genes, in particular, the broadly conserved promoter of the floral transition, FLOWERING LOCUS T (FT). FT activity is countered by the related gene TERMINAL FLOWER1 (TFL1) that maintains indeterminate meristems." https://lnkd.in/duazcMZ View in LinkedIn

REPRESSOR. "The downregulation of a floral repressor by an extended chilling period is a shared feature and at least in some tree taxa and perennial herbaceous plants such as leafy spurge, DAM could have an analogous role in bud dormancy." https://lnkd.in/duazcMZ View in LinkedIn

INDEPENDENT ORIGINS. "Evolutionarily diverse herbaceous plants employ unrelated genes in the vernalization response, indicating that this signaling pathway has evolved independently multiple times." https://lnkd.in/duazcMZ View in LinkedIn

"EPIGENETIC STATES are altered in dormant versus non-dormant buds. Deletion within the locus containing tandemly repeated DORMANCY ASSOCIATED MADS-BOX (DAM) genes has been linked to the evergrowing peach locus that prevents dormancy. DAM6 is upregulated during dormancy and its repression during dormancy release correlates with changes in histone modifications." https://lnkd.in/duazcMZ View in LinkedIn

EPIGENETIC HALLMARKS. "The global levels of genomic DNA methylation and acetylated histone 4 (H4) show cyclic and opposite variations during the seasonal development of chestnut (Castanea sativa), with higher DNA methylation ratios and lower H4 acetylation levels in dormant buds with respect to actively growing tissues." https://lnkd.in/duD22Cw View in LinkedIn

FRAGMENT FROM NATURE continues and concludes from last weekend on plant dormancy, with a focus on the biochemical and genetic aspects. This fascinating topic has enthralled botanists for a long time, and has very practical applications in agriculture. It is the confluence of epigenetics and biochemistry, for the environmental triggers vary in timing, and it is critical that the sleeping plants trigger development in a coordinated way across time and space in order to hit reproductive windows synchronously. View in LinkedIn

EPIGENETIC CIRCADIAN CLOCK. "Pieces of an Epigenetic “Alarm Clock” for Bud Dormancy and Awakening. Several reviews postulate the participation of different epigenetic mechanisms involving histone modification, DNA methylation, and the synthesis of small non-coding RNAs in regulating bud dormancy events, based on evident similarities between the environmental and molecular control of dormancy in buds and other well-known processes, such as flowering initiation, vernalization, and seed development." https://lnkd.in/duD22Cw View in LinkedIn

BIG LIFE. "There’s no doubt this is a living organism,” says Jean-Michel Claverie, a virologist at the the CNRS UPR laboratories in Marseilles, part of France’s basic-research agency. “The fact that it can get sick makes it more alive.” https://lnkd.in/dihxig3 View in LinkedIn

SUPPRESSOR GENES. "The overexpression of the birch (Betula pendula) FRUITFULL (FUL)-like gene BpMADS4 delays senescence and winter dormancy in Populus tremula, and the presence of different allelic variants in a SUPPRESSOR OF OVEREXPRESSION OF CONSTANS (CO) 1 (SOC1)-like gene in apricot is found associated with different chilling requirements for dormancy break." https://lnkd.in/duD22Cw View in LinkedIn

BUT A WORK IN PROCESS. “The recent discovery of a whole diversity of giant viruses in quick succession demonstrated that biology is still a scientific area where some of the most established concepts might be proven wrong, or seriously misleading.” https://lnkd.in/dMhm-ht View in LinkedIn