Artículos de revistas
Patterns of asymmetry in body traits and genitalia in two distant populations of a Neotropical scorpion
Fecha
2014-01Registro en:
Mattoni, Camilo Ivan; Peretti, Alfredo Vicente; Vrech, David Eduardo; Olivero, Paola Andrea; Patterns of asymmetry in body traits and genitalia in two distant populations of a Neotropical scorpion; Taylor & Francis; Journal of Natural History; 49; 15-16; 1-2014; 853-872
0022-2933
CONICET Digital
CONICET
Autor
Olivero, Paola Andrea
Vrech, David Eduardo
Peretti, Alfredo Vicente
Mattoni, Camilo Ivan
Resumen
The ability of a genotype to control the stable development of a phenotype under different environmental conditions may explain the level of developmental instability. An indicator to developmental instability is Fluctuating Asymmetry. Traits under pressures of sexual selection exhibit greater values of asymmetry that others. These traits have more physiological requirements during morphogenesis and a more complex development. The aims of this work are to analyze asymmetry patterns of genitalic and somatic traits in the scorpion Bothriurus bonariensis (Bothriuridae) and to compare these values between central and peripheral populations of its distribution. We observed that types of asymmetry in genitalic traits differed in both populations. Also, traits of the hemispermatophores (two halves that constitute the spermatophore) showed the highest levels of fluctuating asymmetry, particularly in those characteristics with important role for insemination success. This work offers fundamental baseline knowledge for further works focused on asymmetry of genitalia and mating success in scorpions.