Department of Biology, University of Washington, Seattle, WA 98195, USA.
Genetics. 2013 Jun;194(2):523-8. doi: 10.1534/genetics.113.151225. Epub 2013 Apr 5.
The genetic and developmental basis of many ecologically important floral traits (e.g., carotenoid pigmentation, corolla tube structure, nectar volume, pistil and stamen length) remains poorly understood. Here we analyze a chemically induced floral mutant of Mimulus lewisii through bulk segregant analysis and transgenic experiments and identify a MIXTA-like R2R3 MYB gene that controls nectar guide formation in M. lewisii flowers, which involves epidermal cell development and carotenoid pigmentation.
许多生态重要的花部性状（例如，类胡萝卜素着色、花瓣管结构、花蜜量、雌蕊和雄蕊长度）的遗传和发育基础仍知之甚少。在这里，我们通过大量分离群体分析和转基因实验分析了拟南芥的一个化学诱导花突变体，并鉴定出一个控制拟南芥花中蜜腺导形成的 MIXTA 样 R2R3 MYB 基因，该基因涉及表皮细胞发育和类胡萝卜素着色。
