title: [Detection of linear chromosomes and plasmids among 15 genera in the Actinomycetales].
abstract: Bacterial chromosomes and plasmids are commonly circular, however, linear chromosomes and plasmids were discovered among 5 genera of the Actinomycetales. Here, we use pulsed field gel electrophoresis to study the genomes of 19 species which belong to 15 genera in the Actinomycetales. All chromosomes of 19 species are linear DNA, and linear plasmids with different sizes and copy numbers are detected among 5 species. This work provide basis for investigating the possible novel functions of linear replicons beyond Streptomyces and also helps to develop Actinomycetales artificial linear chromosome.
authors.affiliation: Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China. nma@iris.sipp.ac.cn
authors.forename: Ning
authors.initials: N
authors.lastname: Ma
authors.forename: Wei
authors.initials: W
authors.lastname: Ma
authors.forename: Chenglin
authors.initials: C
authors.lastname: Jiang
authors.forename: Ping
authors.initials: P
authors.lastname: Fang
authors.forename: Zhongjun
authors.initials: Z
authors.lastname: Qin
mesh_terms: D000192:Actinomycetales / Q000737:chemistry / Q000235:genetics*; D002876:Chromosomes, Bacterial / Q000235:genetics*; D018628:Gene Dosage; D010957:Plasmids / Q000737:chemistry / Q000235:genetics*