Zhang Changqing, Barthelson Roger A, Lambert Georgina M, Galbraith David W
Department of Plant Sciences , The University of Arizona, Tucson, AZ 85721, USA.
Plant Physiol. 2008 May;147(1):30-40. doi: 10.1104/pp.107.115246. Epub 2008 Mar 19.
We describe a simple and highly effective means for global identification of genes that are expressed within specific cell types within complex tissues. It involves transgenic expression of nuclear-targeted green fluorescent protein in a cell-type-specific manner. The fluorescent nuclei are then purified from homogenates by fluorescence-activated sorting, and the RNAs employed as targets for microarray hybridization. We demonstrate the validity of the approach through the identification of 12 genes that are selectively expressed in phloem.
我们描述了一种简单且高效的方法,用于全面鉴定复杂组织中特定细胞类型内表达的基因。该方法涉及以细胞类型特异性方式进行核靶向绿色荧光蛋白的转基因表达。然后通过荧光激活分选从匀浆中纯化荧光细胞核,并将RNA用作微阵列杂交的靶标。我们通过鉴定在韧皮部中选择性表达的12个基因来证明该方法的有效性。