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|Title:||Control of reproduction by Polycomb Group complexes in animals and plants|
|Source:||Guitton, A.-E., Berger, F. (2005). Control of reproduction by Polycomb Group complexes in animals and plants. International Journal of Developmental Biology 49 (5-6) : 707-716. ScholarBank@NUS Repository. https://doi.org/10.1387/ijdb.051990ag|
|Abstract:||In both mammals and plants, Polycomb Repressive Complexes 2 (PRC2) are conserved and appear to be involved in the transition between vegetative or somatic and reproductive state in plants and mammals. In plants at least three different PRC2 control temporal aspects of development, and mutations in PcG cause heterochronies. Such heterochronic mutations affect the transition to flowering. During gametogenesis the Fertilization-Independent Endosperm-MEDEA-PRC2 (FIE-MEA PRC2) complex controls gametogenesis in synergy with a Retinoblastoma-dependent pathway. Several genes of the FIE-MEA pathway are imprinted as shown by their uniparental allele expression in the endosperm, the interface controlling maternal nutrition of the embryo in the seed. Imprinting is also a major feature for genes expressed in the placenta in mammals. Recent data have shown that imprinting in both placenta and endosperm likely share similar mechanisms involving cooperation between the PRC2 complexes and DNA methylation.|
|Source Title:||International Journal of Developmental Biology|
|Appears in Collections:||Staff Publications|
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