Rubisco genes indicate a close phylogenetic relation between the plastids of Chromophyta and Rhodophyta
Rubisco genes indicate a close phylogenetic relation between the plastids of Chromophyta and Rhodophyta
复制标题
Rubisco 基因表明有色植物门和红藻门的质体之间存在密切的系统发育关系
作者：
K. Valentin;K. Zetsche
Rubisco 的两个亚基（rbcL、rbcS）的基因位于褐藻 Ectocarpus siliculosus（有色植物门、褐藻纲）的质体上。这些基因以操纵子的形式组织与在红绿体、蓝细菌和引藻 Φ 质体中发现的相似。完整操纵子的序列分析揭示了与两种红藻的相应基因的高度同源性和巨大的结构相似性。相比之下，叶绿体和蓝细菌的 Rubisco 基因的序列同源性要低得多。这清楚地表明红藻门和色藻门的质体之间存在密切的系统发育关系，它们似乎是独立于叶绿体进化的（多系起源）。我们的数据表明，有色植物门和隐植物门的质体起源于内共生单细胞红藻。令人惊讶的是，红藻和褐藻 Rubiscos 与氢细菌的同源性明显高于与蓝藻细菌的同源性。
The genes for both subunits of Rubisco (rbcL, rbcS) are located on the plastome of the brown alga Ectocarpus siliculosus (Chromophyta, Phaeophyceae). The organization of these genes in the form of an operon was similar to that found in rhodoplasts, cyanobacteria and the plastids of Cryptomonas Φ. Sequence analysis of the complete operon revealed a high degree of homology and great structural similarities to corresponding genes from two red algae. In contrast, sequence homology to Rubisco genes from chloroplasts and cyanobacteria was much lower. This clearly indicated a close phylogenetic relationship between the plastids of Rhodophyta and Chromophyta which seem to have evolved independently from the chloroplasts (polyphyletic origin). Our data suggest that the plastids of Chromophyta and Cryptophyta have originated from endosymbiotic unicellular red algae. Surprisingly, red and brown algal Rubiscos show a significantly higher degree of homology to that from a hydrogen bacterium than to those from cyanobacteria.
含有化学计量的大亚基和小亚基的活性蓝藻核酮糖-1,5-二磷酸羧化酶/加氧酶在大肠杆菌中的表达和组装。
DOI：
10.1073/pnas.82.18.6100
发表时间：
1985
影响因子：
11.1
作者：
Tabita,FR;Small,CL
通讯作者：
Small,CL
细小眼虫叶绿体核酮糖-1,5-二磷酸羧化酶基因。
DOI：
--
发表时间：
1985
期刊：
The Journal of biological chemistry
影响因子：
--
作者：
Gingrich,JC;Hallick,RB
通讯作者：
Hallick,RB
蓝藻鱼腥藻 7120 中编码核酮糖-1,5-二磷酸羧化酶小亚基和大亚基的基因的共转录。
DOI：
10.1073/pnas.81.19.5961
发表时间：
1984
影响因子：
11.1
作者：
Nierzwicki-Bauer,SA;Curtis,SE;Haselkorn,R
通讯作者：
Haselkorn,R