RAPID EVOLUTION OF HORSE SATELLITE DNA

被引：34

作者：

WIJERS, ER

ZIJLSTRA, C

LENSTRA, JA

机构：

[1] UNIV UTRECHT,FAC VET MED,INST INFECT DIS & IMMUNOL,POB 80165,3508 TD UTRECHT,NETHERLANDS

[2] UNIV UTRECHT,FAC VET MED,DEPT FUNCT MORPHOL,3508 TD UTRECHT,NETHERLANDS

来源：

GENOMICS | 1993年 / 18卷 / 01期

关键词：

D O I：

10.1006/geno.1993.1433

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：

The major satellite of the horse genome consists of about 1 million copies of a 221-bp tandem repeat unit. By fluorescence in situ hybridization it has been localized in the centromeres of 58 of the 64 horse chromosomes. The donkey genome contains a similar but not identical satellite. Strikingly, the equine repeat did not hybridize to DNA of the Grevy zebra, despite the divergence of the horse and zebra only 3 to 5 million years ago and the ability of these species to crossbreed. The evolution of satellite DNA in the Equidae is more rapid than that in other mammalian families, which may be explained by their rapid karyotypic evolution. © 1993 Academic Press, Inc.

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页码：113 / 117

页数：5

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