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Genomic DNA shuffling in archaebacteria -: Comparison of the genomes of two Pyrococcus species

被引：5
作者：
Suckow, JM
Suzuki, M
机构：
[1] CREST Ctr Struct Biol, NIBHT, AIST, Tsukuba, Ibaraki 3050046, Japan
[2] Univ Tokyo, Grad Sch Human & Environm Sci, Meguro Ku, Tokyo 1530041, Japan
来源：
PROCEEDINGS OF THE JAPAN ACADEMY SERIES B-PHYSICAL AND BIOLOGICAL SCIENCES | 1999年 / 75卷 / 01期
关键词：
archaea; genome comparison; evolution of genomes; translocation of DNA segment;
D O I：
10.2183/pjab.75.10
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：
The complete genomic DNA sequence of a hyperthermophilic archaebacterium, Pyrococcus sp. OT3, of the length of 1,738,505 bp (Kawarabayasi et al., 1998, DNA Res. 5, 55-57) has been compared with the nearly complete genomic DNA sequence of a related species, Pyrococcus furiosus, of the length of 1,744,644 bp (deposited in the Utah genome center database, http://www.genome.utah.edu). Approximately 60 segments of the lengths close to 20 kbp on average are identified to be shared by the two genomes but in different orders. Approximately half of the segments are oriented in the opposite directions in the two genomes. Approximately two thirds of the segments are found relatively shifted in the two genomes only by 200 kbp or shorter. It is likely that translocation of DNA segments has been one of the important mechanisms to drive the evolution of archaebacterial genomes.
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页码：10 / 15
页数：6
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