BACTERIAL ORIGIN OF A CHLOROPLAST INTRON - CONSERVED SELF-SPLICING GROUP-I INTRONS IN CYANOBACTERIA

被引：198

作者：

XU, MQ

KATHE, SD

GOODRICHBLAIR, H

NIERZWICKIBAUER, SA

SHUB, DA

机构：

[1] SUNY ALBANY,DEPT BIOL SCI,ALBANY,NY 12222

[2] SUNY ALBANY,CTR MOLEC GENET,ALBANY,NY 12222

[3] RENSSELAER POLYTECH INST,DEPT BIOL,PLANT RES GRP,TROY,NY 12181

来源：

SCIENCE | 1990年 / 250卷 / 4987期

关键词：

D O I：

10.1126/science.2125747

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

A self-splicing group I intron has been found in the gene for a leucine transfer RNA in two species of Anabaena, a filamentous nitrogen-fixing cyanobacterium. The intron is similar to one that is found at the identical position in the same transfer RNA gene of chloroplasts of land plants. Because cyanobacteria were the progenitors of chloroplasts, it is likely that group I introns predated the endosymbiotic association of these eubacteria with eukaryotic cells.

引用

页码：1566 / 1570

页数：5

共 41 条

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