Skin-scale genetic structure of Sarcoptes scabiei populations from individual hosts: empirical evidence from Iberian ibex-derived mites

被引：31

作者：

Alasaad, S. ^{[1
,2
]}

Soglia, D. ^{[1
]}

Sarasa, M. ^{[2
]}

Soriguer, R. C. ^{[3
]}

Perez, J. M. ^{[2
]}

Granados, J. E. ^{[4
]}

Rasero, R. ^{[1
]}

Zhu, X. Q. ^{[5
]}

Rossi, L. ^{[1
]}

机构：

[1] Univ Turin, Dipartimento Prod Anim Epidemiol & Ecol, I-10095 Grugliasco, Italy

[2] Univ Jaen, Dept Biol Anim Biol Vegetal & Ecol, Jaen 23071, Spain

[3] CSIC, Estac Biol Donana, E-41080 Seville, Spain

[4] Carretera Antigua Sierra Nevada, Espacio Nat Sierra Nevada, E-18071 Granada, Spain

[5] S China Agr Univ, Coll Vet Med, Guangzhou 510642, Guangdong, Peoples R China

来源：

PARASITOLOGY RESEARCH | 2008年 / 104卷 / 01期

关键词：

D O I：

10.1007/s00436-008-1165-3

中图分类号：

R38 [医学寄生虫学]; Q [生物科学];

学科分类号：

07 ; 0710 ; 09 ; 100103 ;

摘要：

The objective of the present study was to examine the extent of genetic diversity among Sarcoptes scabiei individuals belonging to different skin subunits of the body from individual mangy hosts. Ten microsatellite primers were applied on 44 individual S. scabiei mites from three mangy Iberian ibexes from Sierra Nevada Mountain in Spain. Dendrograms of the mites from the individual Iberian ibexes, showing the proportion of shared alleles between pairs of individual mites representing three skin subpopulations (head, back, and abdomen subunits), allowed the clustering of some mite samples up to their skin subunits. This genetic diversity of S. scabiei at skin-scale did not have the same pattern in all considered hosts: for the first Iberian ibex (Cp1), only mites from the head subunit were grouped together; in the second individual (Cp2), the clustering was detected only for mites from the abdomen subunit; and for the third one (Cp3), only mites from the back subunit were clustered together. Our results suggest that the local colonization dynamics of S. scabiei would have influenced the nonrandom distribution of this ectoparasite, after a single infestation. Another presumable explanation to this skin-scale genetic structure could be the repeated infestations. To our knowledge, this is the first documentation of genetic structuring among S. scabiei at individual host skin-scale. Further studies are warranted to highlight determining factors of such trend, but the pattern underlined in the present study should be taken into account in diagnosis and monitoring protocols for studying the population genetic structure and life cycle of this neglected but important ectoparasite.

引用

页码：101 / 105

页数：5

共 38 条

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