2019年8月23日 · In maize, tb1 regulates aerial branching by targeting genes that alter branch fates, such as the BTB POZ domain gene tassels replace upper ears1 (tru1) 16.

2017年9月27日 · Branch suppression in maize was achieved through selection for overexpression of the teosinte branched1 (tb1) transcription factor that acts as a repressor of axillary branching. Here, we show a molecular mechanism for how TB1 transformed teosinte into a viable crop plant.

2019年2月11日 · This review addresses the molecular identity of BRC1, its involvement in shoot branching, and its regulation in response to endogenous inputs (hormones and nutrients) and exogenous cues (light). We also discuss how BRC1 can mechanistically govern bud outgrowth, and raise a few questions about future investigations.

2020年5月25日 · TB1/BRC1 of maize, rice, wheat, barley, tomato, pea, Arabidopsis, switchgrass, and cucumber have conserved roles in regulating outgrowth of lateral branches, with loss-of-function mutations increasing lateral branch number and length, while gain-of-function alleles suppress their growth (Doebley et al., 1997; Takeda et al., 2003; Aguilar ...

2013年4月23日 · Genetic and gene expression analyses suggest that BRC1 interferes with florigen (FT and TSF) function in the AMs. Consistent with this, BRC1 ectopically expressed in the shoot apical meristem delays the floral transition in the main shoot.

2024年11月10日 · We found that overexpression of the strigolactone (SL) biosynthesis gene CAROTENOID CLEAVAGE DIOXYGENASE 8 (CCD8) resulted in greater ear diameter and enhanced sucrose and amino acid accumulation in maize kernels. Loss of ZmCCD8 function reduced kernel growth with lower sugar and amino acid concentrations.

近年来的研究发现，TCP（TEOSINTE BRANCHED1，CYCLOIDEA，PCF）转录因子家族成员BRC1/TB1可响应并整合多种信号来调控植物的分枝。 本文总结了BRC1/TB1对光照、营养及不同激素的响应特征，及其在调控植物分枝过程中发挥的核心作用等研究成果，并重点对BRC1/TB1基因上下游调控网络的相关研究进行综述，且对未来的研究方向进行了展望，旨在为后续分枝调控方面的研究提供信息，也为今后创制符合人们期望的优良种质提供参考依据。

Loss of BRC1 function leads to accelerated AM initiation, precocious progression of bud development and excess of shoot branching. BRC1 transcription is affected by endogenous and environmental signals controlling branching and we have shown that BRC1 function mediates the response to these stimuli.

2020年11月1日 · In maize, BRC1 can directly bind to the promoter of the TRU1 gene [114] (Figure 1 E). In arabidopsis, BRC1 can increase ABA accumulation in buds by binding to and upregulating the expression of the three HB genes HB21, HB40, and HB53 to subsequently increase the expression of NCED3, which codes for the …

2016年1月19日 · To further explore the regulation of tillering by tb1, we characterized the development of tiller buds and response to supplemental FR in a maize stiff stalk variety with few branches (B73), a sweet corn variety with many branches (P39) that carries a mutation in a starch biosynthesis gene 20 and freely branching teosinte.