Morphometric similarity among populations of Rhipicephalus microplus (Acari: Ixodidae) in the north-western region of Colombia

Rhipicephalus microplus is one of the most widely distributed and economically important ticks able to transmit pathogens to vertebrate hosts which cause major constraints to public and livestock health. A better understanding of their population structure is crucial for the development of more effe...

Full description

Autores:
Durango Manrique, Yésica Sidney
Gutiérrez Builes, Lina Andrea
Gómez García, Giovan Fernando
Tipo de recurso:
Article of investigation
Fecha de publicación:
2020
Institución:
Tecnológico de Antioquia
Repositorio:
Repositorio Tdea
Idioma:
eng
OAI Identifier:
oai:dspace.tdea.edu.co:tdea/3035
Acceso en línea:
https://dspace.tdea.edu.co/handle/tdea/3035
Palabra clave:
Rhipicephalus microplus
Morfometría
Morphometrics
Morphométrie
Organismos patógenos
Pathogens
Agent pathogène
Agente patogénio
Ganado
Livestock
Bétail
Gado
Estructuras anatómicas
Anatomical structures
Structure anatomique
Garrapatas
Ticks
Carrapatos
Tiques
Riesgo a la Salud
Health Risk
Risco à Saúde Humana
Risque de Santé
Personas
Persons
Pessoas
Personnes
Rights
closedAccess
License
http://purl.org/coar/access_right/c_14cb
Description
Summary:Rhipicephalus microplus is one of the most widely distributed and economically important ticks able to transmit pathogens to vertebrate hosts which cause major constraints to public and livestock health. A better understanding of their population structure is crucial for the development of more effective control strategies. Modern morphometrics has enabled the quantification of size and shape variations to investigate population differences in anatomical structures. We therefore applied landmark-based and outline-based geometric morphometric approaches to study 85 field-collected adult females of three R. microplus Colombian populations along a distance of 28–67 km using the scutum and the basis capituli. Although size differences were found between some populations, mean shape and metric disparity of the analyzed structures were very similar, resulting in low classification scores (<41%). Thus, both structures support a metapopulation of R. microplus at a microgeographic level. The variance of shape between structures does not co-vary, likely indicating morphological modularity. These data provide first clues to understand the metric variation of R. microplus among natural populations from north-western Colombia.