Table S1 –Gene ontology analysis of genes nearest H3K27me3 peaks. Each portion of H3K27me3 depicted in the Venn diagram in Fig. 3b was analyzed for enriched biological process categories (by hypergeometric test adjusted for multiple measurements, p<0.01). Intersection of WT and KO GO ID GO:0033555 GO:0031644 GO:0050804 GO:0051969 GO:0007268 GO:0044057 GO:0019226 GO:0035637 GO Term multicellular organismal response to stress regulation of neurological system process regulation of synaptic transmission regulation of transmission of nerve impulse synaptic transmission regulation of system process transmission of nerve impulse GO:0000902 multicellular organismal signaling cell projection morphogenesis cell part morphogenesis cell morphogenesis GO:0022610 biological adhesion GO:0007155 cell adhesion GO:0048858 GO:0032990 GO:0032989 GO:0030182 GO:0048699 GO:0022008 WT Only GO ID GO:0031644 GO:0050804 GO:0051969 GO:0030155 GO:0045860 GO:0044057 GO:0007268 GO:0048858 GO:0019226 cellular component morphogenesis neuron differentiation generation of neurons neurogenesis GO Term regulation of neurological system process regulation of synaptic transmission regulation of transmission of nerve impulse regulation of cell adhesion positive regulation of protein kinase activity regulation of system process synaptic transmission cell projection morphogenesis transmission of nerve impulse Definition Any process that results in a change in state or activity of a multicellular organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a stimulus indicating the organism is under stress. The stress is usually, but not necessarily, exogenous (e.g. temperature, humidity, ionizing radiation). Any process that modulates the frequency, rate or extent of a neurophysiological process, an organ system process carried out by any of the organs or tissues of neurological system. Any process that modulates the frequency or rate of synaptic transmission, the process of communication from a neuron to a target (neuron, muscle, or secretory cell) across a synapse. Any process that modulates the frequency, rate or extent of transmission of a nerve impulse, the sequential electrochemical polarization and depolarization that travels across the membrane of a neuron in response to stimulation. The process of communication from a neuron to a target (neuron, muscle, or secretory cell) across a synapse. Any process that modulates the frequency, rate or extent of a system process, a multicellular organismal process carried out by any of the organs or tissues in an organ system. The neurological system process in which a signal is transmitted through the nervous system by synaptic transmission and the sequential electrochemical polarization and depolarization that travels across the membrane of a nerve cell (neuron) in response to stimulation. The transfer of information occurring at the level of a multicellular organism. The process in which the anatomical structures of a cell projection are generated and organized. The process in which the anatomical structures of a cell part are generated and organized. The developmental process in which the size or shape of a cell is generated and organized. The attachment of a cell or organism to a substrate or other organism. The attachment of a cell, either to another cell or to an underlying substrate such as the extracellular matrix, via cell adhesion molecules. The process in which cellular structures, including whole cells or cell parts, are generated and organized. The process in which a relatively unspecialized cell acquires specialized features of a neuron. The process in which nerve cells are generated. This includes the production of neuroblasts and their differentiation into neurons. Generation of cells within the nervous system. Definition Any process that modulates the frequency, rate or extent of a neurophysiological process, an organ system process carried out by any of the organs or tissues of neurological system. Any process that modulates the frequency or rate of synaptic transmission, the process of communication from a neuron to a target (neuron, muscle, or secretory cell) across a synapse. Any process that modulates the frequency, rate or extent of transmission of a nerve impulse, the sequential electrochemical polarization and depolarization that travels across the membrane of a neuron in response to stimulation. Any process that modulates the frequency, rate or extent of attachment of a cell to another cell or to the extracellular matrix. Any process that activates or increases the frequency, rate or extent of protein kinase activity. Any process that modulates the frequency, rate or extent of a system process, a multicellular organismal process carried out by any of the organs or tissues in an organ system. The process of communication from a neuron to a target (neuron, muscle, or secretory cell) across a synapse. The process in which the anatomical structures of a cell projection are generated and organized. The neurological system process in which a signal is transmitted through the nervous system by synaptic transmission and the sequential electrochemical polarization and depolarization that travels across the membrane of a nerve cell (neuron) in response to stimulation. p-value Count in dataset Count in Genome Enrichm ent Total term in dataset Total term in genome BH adjusted p-value 1.34E-05 20 50 40.0% 106639 718880 0.00587 2.38E-07 63 224 28.1% 106639 718880 0.001052 3.72E-06 53 192 27.6% 106639 718880 0.002281 2.11E-06 57 208 27.4% 106639 718880 0.001762 1.55E-06 95 399 23.8% 106639 718880 0.001581 2.81E-06 94 399 23.6% 106639 718880 0.001915 1.43E-06 110 478 23.0% 106639 718880 0.001581 1.43E-06 110 478 23.0% 106639 718880 0.001581 1.72E-05 91 400 22.8% 106639 718880 0.007053 2.72E-05 92 410 22.4% 106639 718880 0.009817 2.30E-06 131 597 21.9% 106639 718880 0.001762 3.43E-07 161 741 21.7% 106639 718880 0.001052 5.31E-07 159 735 21.6% 106639 718880 0.001087 1.08E-05 136 643 21.2% 106639 718880 0.005243 7.62E-06 151 723 20.9% 106639 718880 0.004248 1.11E-05 164 802 20.4% 106639 718880 0.005243 1.94E-05 172 856 20.1% 106639 718880 0.00742 p-value Count in dataset Count in Genome Enrichm ent Total term in dataset Total term in genome BH adjusted p-value 2.28E-07 63 224 28.1% 106521 718880 0.000627 3.60E-06 53 192 27.6% 106521 718880 0.002769 2.04E-06 57 208 27.4% 106521 718880 0.002656 2.71E-05 53 205 25.9% 106521 718880 0.009196 2.21E-05 66 270 24.4% 106521 718880 0.009012 2.68E-06 94 399 23.6% 106521 718880 0.002734 4.82E-06 93 399 23.3% 106521 718880 0.002946 1.65E-05 91 400 22.8% 106521 718880 0.007221 4.07E-06 108 478 22.6% 106521 718880 0.002769 GO:0035637 GO:0000902 multicellular organismal signaling cell part morphogenesis cell morphogenesis GO:0022610 biological adhesion GO:0007155 cell adhesion GO:0032990 GO:0032989 GO:0030182 GO:0048699 GO:0022008 KO Only GO ID GO:0033555 GO:0031644 GO:0050804 GO:0051969 GO:0007268 GO:0044057 GO:0019226 GO:0035637 cellular component morphogenesis neuron differentiation generation of neurons neurogenesis GO Term multicellular organismal response to stress regulation of neurological system process regulation of synaptic transmission regulation of transmission of nerve impulse synaptic transmission regulation of system process transmission of nerve impulse GO:0000902 multicellular organismal signaling cell morphogenesis GO:0022610 biological adhesion GO:0007155 cell adhesion GO:0032989 GO:0030182 GO:0048699 GO:0022008 cellular component morphogenesis neuron differentiation generation of neurons neurogenesis The transfer of information occurring at the level of a multicellular organism. The process in which the anatomical structures of a cell part are generated and organized. The developmental process in which the size or shape of a cell is generated and organized. The attachment of a cell or organism to a substrate or other organism. The attachment of a cell, either to another cell or to an underlying substrate such as the extracellular matrix, via cell adhesion molecules. The process in which cellular structures, including whole cells or cell parts, are generated and organized. The process in which a relatively unspecialized cell acquires specialized features of a neuron. The process in which nerve cells are generated. This includes the production of neuroblasts and their differentiation into neurons. Generation of cells within the nervous system. Definition Any process that results in a change in state or activity of a multicellular organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a stimulus indicating the organism is under stress. The stress is usually, but not necessarily, exogenous (e.g. temperature, humidity, ionizing radiation). Any process that modulates the frequency, rate or extent of a neurophysiological process, an organ system process carried out by any of the organs or tissues of neurological system. Any process that modulates the frequency or rate of synaptic transmission, the process of communication from a neuron to a target (neuron, muscle, or secretory cell) across a synapse. Any process that modulates the frequency, rate or extent of transmission of a nerve impulse, the sequential electrochemical polarization and depolarization that travels across the membrane of a neuron in response to stimulation. The process of communication from a neuron to a target (neuron, muscle, or secretory cell) across a synapse. Any process that modulates the frequency, rate or extent of a system process, a multicellular organismal process carried out by any of the organs or tissues in an organ system. The neurological system process in which a signal is transmitted through the nervous system by synaptic transmission and the sequential electrochemical polarization and depolarization that travels across the membrane of a nerve cell (neuron) in response to stimulation. The transfer of information occurring at the level of a multicellular organism. The developmental process in which the size or shape of a cell is generated and organized. The attachment of a cell or organism to a substrate or other organism. The attachment of a cell, either to another cell or to an underlying substrate such as the extracellular matrix, via cell adhesion molecules. The process in which cellular structures, including whole cells or cell parts, are generated and organized. The process in which a relatively unspecialized cell acquires specialized features of a neuron. The process in which nerve cells are generated. This includes the production of neuroblasts and their differentiation into neurons. Generation of cells within the nervous system. 4.07E-06 108 478 22.6% 106521 718880 0.002769 2.61E-05 92 410 22.4% 106521 718880 0.009196 2.17E-06 131 597 21.9% 106521 718880 0.002656 1.97E-07 162 741 21.9% 106521 718880 0.000627 3.07E-07 160 735 21.8% 106521 718880 0.000627 1.02E-05 136 643 21.2% 106521 718880 0.005224 7.18E-06 151 723 20.9% 106521 718880 0.003993 1.57E-05 163 802 20.3% 106521 718880 0.007221 2.67E-05 171 856 20.0% 106521 718880 0.009196 p-value Count in dataset Count in Genome Enrichm ent Total term in dataset Total term in genome BH adjusted p-value 1.27E-05 20 50 40.0% 106290 718880 0.0063 2.11E-07 63 224 28.1% 106290 718880 0.000856 3.37E-06 53 192 27.6% 106290 718880 0.002064 1.90E-06 57 208 27.4% 106290 718880 0.001665 1.34E-06 95 399 23.8% 106290 718880 0.001367 2.45E-06 94 399 23.6% 106290 718880 0.001871 1.23E-06 110 478 23.0% 106290 718880 0.001367 1.23E-06 110 478 23.0% 106290 718880 0.001367 3.18E-06 130 597 21.8% 106290 718880 0.002064 2.80E-07 161 741 21.7% 106290 718880 0.000856 4.35E-07 159 735 21.6% 106290 718880 0.000888 1.44E-05 135 643 21.0% 106290 718880 0.0063 9.85E-06 150 723 20.7% 106290 718880 0.005479 1.39E-05 163 802 20.3% 106290 718880 0.0063 2.37E-05 171 856 20.0% 106290 718880 0.009669