眼虫(Euglena gracilis)叶绿体核糖体 DNA 基因座结构组织和冗余的种内变异。

Intraspecific variation in the structural organization and redundancy of chloroplast ribosomal DNA cistrons in Euglena gracilis.

机构信息

Department of Physiology and Biophysics, University of Illinois, 61801, Urbana, Illinois, USA.

出版信息

Curr Genet. 1981 Jul;3(3):181-7. doi: 10.1007/BF00429820.

PMID:24190130

Abstract

Chloroplast DNAs from six different laboratory collections of Euglena gracilis "strain Z" and var. bacillaris were analyzed with restriction endonucleases EcoRI and Bam HI. The most variable portion of the organelle genome is the region containing the ribosomal cistrons. Intraspecific differences occur in both ribosomal DNA cistron number (one or three) and structural organization among those strains designated as "strain Z" and bacillaris. One culture previously designated as "Z" is most likely bacillaris.

摘要

采用 EcoRI 和 BamHI 两种限制内切酶，对取自六个不同实验室的六种衣藻“Z 型”和变种杆状藻的叶绿体 DNA 进行分析。细胞器基因组中最易变的部分是含有核糖体基因的区域。在那些被指定为“Z 型”和杆状藻的菌株中，核糖体 DNA 基因座数量（一个或三个）和结构组织在种内均存在差异。以前被指定为“Z”的一个培养物很可能是杆状藻。