TY - JOUR TI - A SET/MYND chromatin re-modelling protein regulates Dictyostelium prespore patterning AU - Nuñez-Corcuera, Beatriz AU - Birch, Joanna AU - Williams, JeffreyG. T2 - The International Journal of Developmental Biology AB - SmdA is a Dictyostelium orthologue of the SET/MYND chromatin re-modelling proteins. In developing structures derived from a null mutant for smdA (a smdA- strain), prestalk patterning is normal, but using a prespore lacZ reporter fusion, there is ectopic accumulation of beta-galactosidase in the prestalk region. As wild type slugs migrate, there is continual forward movement and re-differentiation of prespore cells into prestalk cells. Thus, a potential explanation for the ectopic reporter localization in smdA null prestalk cells is an increased rate of re-differentiation and anterior movement of prespore cells. In support of this notion, analysis of an unstable lacZ reporter, driven by the prespore promoter, reveals a normal staining pattern in the smdA- strain. We suggest that one or more genes regulated by SmdA acts to repress prespore re-specification. PY - 2011 DO - 10.1387/ijdb.113309bn VL - 55 IS - 2 SP - 205 EP - 208 J2 - Int. J. Dev. Biol. LA - en SN - 0214-6282 SN - 1696-3547 UR - https://ijdb.ehu.eus/article/113309bn Y2 - 2024/05/05/06:52:25 ER -