E-dispar strain:: Analysis of polymorphism as a tool for study of geographic distribution

被引：23

作者：

Ramos, F

García, G

Valadez, A

Morán, P

González, E

Gómez, A

Melendro, EI

Valenzuela, O

Ximénez, C

机构：

[1] Natl Autonomous Univ Mexico, Fac Med, Dept Expt Med, Mexico City 06726, DF, Mexico

[2] Inst Mexicano Seguro Social, Coodinac Invest Salud, Mexico City 06726, DF, Mexico

来源：

MOLECULAR AND BIOCHEMICAL PARASITOLOGY | 2005年 / 141卷 / 02期

关键词：

E; dispar; histolytica; intra-species polymorphism; chitinase gene; geographic mobility;

D O I：

10.1016/j.molbiopara.2005.02.010

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

The intra-species polymorphism of E. histolytica and E. dispar species in endemic area is an important tool for geographic distribution and spread mechanism studies. Since E. dispar and E. histolytica shears ecological niche, cell cycle, and transmission mechanism for human host, we studied the intra-specie variation and distribution of E. dispar strains obtained from cyst passers, in two neighbor rural communities in Morelos Mexico. We analyzed the polymorphic region of the quitinase protein gene in isolates of E. dispar. In 45 isolates from one community we identified 12 different CHI patterns while in 15 isolates from the other community we identified 5 different patterns. However both communities share 4 patterns. This finding suggests the presence of strains with different geographic mobility. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：175 / 177

页数：3

共 9 条

[1] ENTAMOEBA-HISTOLYTICA EXTRACHROMOSOMAL CIRCULAR RIBOSOMAL DNA - ANALYSIS OF CLONAL VARIATION IN A HYPERVARIABLE REGION [J].