Temperature effect on the phenotypic expression of characters of costal spots Nyssorhynchus triannulatus (Diptera: Culicidae: Anophelinae).

In this study, the effect of temperature on the phenotypic expression of size, elongation (length/width) and costal wing spots among families, progenies and sexes was evaluated through traditional morphometry in populations of Nyssorhynchus triannulatus from southern Colombia. In the progenies of 11...

Full description

Autores:
González Obando, Ranulfo
Cárdenas Henao, Heiber
Marín Londoño, Omar Alejandro
Tipo de recurso:
Article of journal
Fecha de publicación:
2021
Institución:
Universidad del Valle
Repositorio:
Repositorio Digital Univalle
Idioma:
spa
OAI Identifier:
oai:bibliotecadigital.univalle.edu.co:10893/20844
Acceso en línea:
https://hdl.handle.net/10893/20844
Palabra clave:
Genética
Morfología
Mosquitos
Morfometría tradicional
Nyssorhynchus triannulatus
Anophelinae
Genetics
Morphology
Mosquitoes
Traditional morphometry
Colombia
Rights
openAccess
License
http://purl.org/coar/access_right/c_abf2
Description
Summary:In this study, the effect of temperature on the phenotypic expression of size, elongation (length/width) and costal wing spots among families, progenies and sexes was evaluated through traditional morphometry in populations of Nyssorhynchus triannulatus from southern Colombia. In the progenies of 11 families, obtained at 20, 24 and 28 °C the wings showed four costal spots patterns. Pattern I was present in all three breeding temperatures with the highest frequency. Within families, the average length/width of wing ratio was significantly higher in males than females, while the variation by sex of this character was similar. Among the families, the temperature had variable influence on the sizes of wings and costal spots. Within the components of phenotypic variation, the breeding temperature had no significant detectable effect on the length of the wing and several of the analyzed characters; however, the proportion of the subcostal pale spot length over the length of the distal sector dark spot (SCP/DSD) was the most sensitive to temperature changes. The genetic contribution of the wing size and the measured characters length, as well as the effect of the families (origin) on the phenotypic variation, was significant for almost all the characters analyzed. The effect of the sexes on the phenotypic variation of the studied characters was significant only for some characters, while there were few significant interactions between the three factors analyzed (temperature, family and sex) with a low effect on the phenotypic variation.