Interdisciplinary Research Organization, University of Miyazaki, 1-1, Gakuen Kibanadai-Nishi, Miyazaki 889-2192, Japan.
J Plant Physiol. 2013 Nov 1;170(16):1466-8. doi: 10.1016/j.jplph.2013.05.013. Epub 2013 Jun 21.
CAPRICE (CPC) and CAPRICE-like (CPL) myeloblastosis (MYB) family members [including TRYPTICHON (TRY) and ENHANCER OF TRYPTICHON AND CAPRICE (ETC)] of Arabidopsis thaliana encode R3-type MYB transcription factors that promote root hair differentiation and inhibit trichome formation in a redundant manner. Previously, we reported that the CPL3 gene affects flowering. The cpl3 mutant plants flower earlier and with fewer leaves than the wild type. In this study, we show that mutations in CPC or TRY delay flowering of cpl3 plants. A mutation in ETC1 did not further delay flowering but reduced plant size. Our study provides insight into the regulation of flowering time by the CPC-like MYB gene family.
拟南芥 CAPRICE (CPC) 和 CAPRICE-like (CPL) 髓细胞瘤 (MYB) 家族成员 [包括 TRYPTICHON (TRY) 和 CAPRICE 和 TRYPTICHON 的增强子 (ETC)] 编码 R3 型 MYB 转录因子，以冗余方式促进根毛分化并抑制毛状体形成。以前，我们报道了 CPL3 基因影响开花。cpl3 突变体植物比野生型开花更早，叶片更少。在这项研究中，我们表明 CPC 或 TRY 的突变会延迟 cpl3 植物的开花时间。ETC1 的突变不会进一步延迟开花，但会减小植株大小。我们的研究提供了对 CPC-like MYB 基因家族调控开花时间的深入了解。
