TY - JOUR AB - Potato tuber bud dormancy break followed by premature sprouting is a major commercial problem which results in quality losses and decreased tuber marketability. An approach to controlling premature tuber sprouting is to develop potato cultivars with a longer dormancy period and/or reduced rate of sprout growth. Our recent studies using a potato diploid population have identified several QTLs that are associated with tuber sprout growth. In the current study we aim to characterise a candidate gene associated with one of the largest effect QTL for rapid tuber sprout growth on potato chromosome 3. Underlying this QTL is a gene encoding a TERMINAL FLOWER 1/ CENTRORADIALIS homologue (PGSC0003DMG400014322). Here we use a transgenic approach to manipulate the expression level of the CEN family member in a potato tetraploid genotype (cv. Désirée). We demonstrate a clear effect of StCEN expression manipulation, with decreased expression levels associated with an increased rate of sprout growth, and over-expressing lines showing a lower rate of sprout growth than controls. Associated with different levels of StCEN expression were different levels of ABA and cytokinins implying a role in controlling the levels of plant growth regulators in the apical meristem. AU - Morris,WL AU - Alamar,MC AU - Lopez-Cobollo,RM AU - Castillo,JC AU - Bennett,M AU - Van,der Kaay J AU - Stevens,J AU - Kumar,Sharma S AU - McLean,K AU - Thompson,AJ AU - Terry,LA AU - Turnbull,CGN AU - Bryan,GJ AU - Taylor,MA DO - jxb/ery387 EP - 843 PY - 2019/// SN - 0022-0957 SP - 835 TI - A member of the TERMINAL FLOWER1/CENTRORADIALIS gene family controls sprout growth in potato tubers T2 - Journal of Experimental Botany UR - http://dx.doi.org/10.1093/jxb/ery387 UR - https://www.ncbi.nlm.nih.gov/pubmed/30395257 UR - http://hdl.handle.net/10044/1/64904 VL - 70 ER -