作者介绍了褪黑激素受体1b的结构和功能，褪黑激素受体1b基因的克隆及基因结构、发育性表达与作用、定位与多态性，并讨论了该基因与繁殖季节性的关系。
This review introduced the structure and function of melatonin receptor 1b, the cloning and structure, developmental expression, mapping and polymorphism of melatonin receptor 1b gene.
但同细胞核转基因一样，叶绿体转基因也存在抗生素标记的生物安全性和外源基因的过量表达对植物正常生长发育的影响的问题。
But the same as nuclear transformation, plastid transformation also has the problems of bio-safety of antibiotic markers and development obstacles due to the overexpression of foreign gene.
方法取11~36周人胎肺组织常规石蜡包埋切片，HE染色观察胚肺各个发育阶段的成熟度，免疫组化检测SP-D时相性表达特征。
Methods Human fetal lung tissues from 11- to 36-week-old fetuses were assayed for lung maturity with HE staining and SP-D expression by means of immunohistochemistry.
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