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Three sea urchin actin genes show different patterns of expression: muscle specific, embryo specific, and constitutive.

机译:三种海胆肌动蛋白基因显示不同的表达方式:肌肉特异性,胚胎特异性和组成型。

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The expression of three different actin genes in the sea urchin, Strongylocentrotus purpuratus, was monitored in embryos and adult tissues by using untranslated mRNA sequences as specific hybridization probes. Three distinct patterns of expression were found: muscle specific, embryo specific, and constitutive (i.e., present in all tissues examined). The actin genes encoding the muscle-specific and constitutively expressed genes were each found to be present once in the haploid genome. The embryo-specific probe could derive from either a single gene or a small subset of actin genes. These data demonstrate that at least three members of the sea urchin actin gene family are expressed in distinct ways and thus are probably associated with different regulatory programs of gene expression necessary for development of this metazoan.
机译:使用未翻译的mRNA序列作为特异性杂交探针,可监测胚胎和成年组织中海胆中的三种不同肌动蛋白基因的表达。发现三种不同的表达模式:肌肉特异性,胚胎特异性和组成型(即,存在于所有检查的组织中)。发现编码肌特异性和组成性表达的基因的肌动蛋白基因在单倍体基因组中都存在一次。胚胎特异性探针可以来自单个基因或肌动蛋白基因的一小部分。这些数据表明,海胆肌动蛋白基因家族的至少三个成员以不同的方式表达,因此可能与后生动物发育所必需的基因表达的不同调控程序有关。

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