B1SINEs in different rodent families

被引：41

作者：

Veniaminova, Natalia A. ^{[1
]}

Vassetzky, Nikita S. ^{[1
]}

Kramerov, Dmitri A. ^{[1
]}

机构：

[1] Russian Acad Sci, VA Engelhardt Mol Biol Inst, Moscow 119991, Russia

来源：

GENOMICS | 2007年 / 89卷 / 06期

基金：

俄罗斯基础研究基金会;

关键词：

retroposon; rodentia; evolution; phylogeny; 7SL RNA;

D O I：

10.1016/j.ygeno.2007.02.007

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

B1 SINEs were studied in 22 families covering all major rodent lineages. The number of B1 copies considerably varies, from 1 X 10(4) in Geomyidae to 1 X 10(6) in Myodonta. B1 sequences can be divided into three main structural variants: B 1 with a 20-by tandem duplication (found in Gliridae, Sciuridae, and Aplodontidae), B1 with a 29-by duplication (found in other families), and proto-B1 without duplication (pB1). These variants can be further subdivided according to their characters, including specific 7-, 9-, or 10-by deletions. Different B1 subfamilies predominate in different rodent families. The analysis of B1 variants allowed us to propose possible pathways for the evolution of this SINE in the context of rodent evolution. (c) 2007 Elsevier Inc. All rights reserved.

引用

页码：678 / 686

页数：9

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