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三种海洋甲藻（甲藻门）：夜光藻属和两个有毒属，原甲藻属的卫星 DNA 特征。

Characterization of Satellite DNA from Three Marine Dinoflagellates (Dinophyceae): Glenodinium sp. and Two Members of the Toxic Genus, Protogonyaulax.

机构信息

Department of Botany KB-15, University of Washington, Seattle, WA 98195.

出版信息

Plant Physiol. 1991 Oct;97(2):613-8. doi: 10.1104/pp.97.2.613.

DOI:10.1104/pp.97.2.613
PMID:16668443
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC1081051/
Abstract

Using CsCl-Hoechst dye or CsCl-ethidium bromide gradients, satellite and nuclear DNAs were separated and characterized in three marine dinoflagellates: Glenodinium sp., and two toxic dinoflagellates, Protogonyaulax tamarensis and Protogonyaulax catenella. In all three dinoflagellates, the lowest density fraction, satellite DNA(1), hybridized to chloroplast genes derived from terrestrial plants and/or other algae. Dinoflagellate chloroplast DNAs exhibited molecular sizes of 114 to 125 kilobase pairs, which is consistent with plastid sizes determined for other chromophytic algae (120-150 kilobase pairs). Mitochondrial DNA was not resolved from nuclear DNA in this system. Two additional satellite DNAs, satellite DNA(2) and satellite DNA(3), recovered from P. tamarensis and P. catenella were similar to one another, both within and between species, when characterized by restriction enzyme analysis. These satellites were 85 to 95 kilobase pairs in size, and exhibited restriction fragments that hybridized to yeast nuclear ribosomal RNA genes. Restriction enzyme analyses and DNA hybridization studies of cpDNA document that the two Protogonyaulax isolates are not evolutionarily identical.

摘要

使用氯化铯- Hoechst 染料或氯化铯-溴化乙锭梯度，在三种海洋甲藻中分离和鉴定了卫星 DNA 和核 DNA：Glenodinium sp.，以及两种有毒甲藻，原甲藻和拟甲藻。在这三种甲藻中，密度最低的卫星 DNA（1）与来自陆地植物和/或其他藻类的叶绿体基因杂交。甲藻叶绿体 DNA 的分子大小为 114 到 125 千碱基对，与其他色素藻类（120-150 千碱基对）确定的质体大小一致。在该系统中，线粒体 DNA 与核 DNA 没有分离。从原甲藻和拟甲藻中回收的另外两种卫星 DNA（2）和卫星 DNA（3），在物种内和物种间的特征是通过限制性内切酶分析相似的。这些卫星 DNA 的大小为 85 到 95 千碱基对，并且显示出与酵母核核糖体 RNA 基因杂交的限制片段。cpDNA 的限制性内切酶分析和 DNA 杂交研究表明，这两个原甲藻分离株在进化上并不相同。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ec5b/1081051/79391a991a14/plntphys00697-0151-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ec5b/1081051/46f2448a2264/plntphys00697-0150-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ec5b/1081051/6e5981a45b1c/plntphys00697-0150-b.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ec5b/1081051/4d3760438df7/plntphys00697-0150-c.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ec5b/1081051/79391a991a14/plntphys00697-0151-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ec5b/1081051/46f2448a2264/plntphys00697-0150-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ec5b/1081051/6e5981a45b1c/plntphys00697-0150-b.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ec5b/1081051/4d3760438df7/plntphys00697-0150-c.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ec5b/1081051/79391a991a14/plntphys00697-0151-a.jpg

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本文引用的文献

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Size of the Chloroplast Genome in Codium fragile.脆弱刚毛藻叶绿体基因组的大小。
Science. 1981 Jul 24;213(4506):445-7. doi: 10.1126/science.213.4506.445.
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Mol Gen Genet. 1987 Sep;209(2):343-51. doi: 10.1007/BF00329664.
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Isolation and Characterization of Chloroplast DNA from the Marine Chromophyte, Olisthodiscus luteus: Electron Microscopic Visualization of Isomeric Molecular Forms.从海洋藻类黄藻中分离和鉴定叶绿体 DNA：同型分子形式的电子显微镜可视化。
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Sequence arrangement of a highly methylated satellite DNA of a plant, Scilla: A tandemly repeated inverted repeat.植物菝葜高度甲基化卫星 DNA 的序列排列：串联重复的反向重复。
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Inverted repeat of Olisthodiscus luteus chloroplast DNA contains genes for both subunits of ribulose-1,5-bisphosphate carboxylase and the 32,000-dalton Q(B) protein: Phylogenetic implications.黄杆菌属叶绿体 DNA 反向重复序列含有核酮糖-1,5-二磷酸羧化酶大亚基和小亚基以及 32000 道尔顿的 Q(B)蛋白基因：系统发育意义。
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Studies of marine planktonic diatoms. I. Cyclotella nana Hustedt, and Detonula confervacea (cleve) Gran.海洋浮游硅藻的研究。I. 微小环藻（Hustedt），以及脆杆藻（Cleve）格兰变种
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The Zea mays mitochondrial gene coding cytochrome oxidase subunit II has an intervening sequence and does not contain TGA codons.玉米线粒体中编码细胞色素氧化酶亚基II的基因含有一个间隔序列，且不包含TGA密码子。
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Species distribution and properties of nuclear satellite DNA in higher plants.高等植物中核卫星DNA的物种分布及特性
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