Alary polymorphism in Triatoma spinolai and its possible relationship with demographic strategy
Author
dc.contributor.author
Schofield, C. J.
Author
dc.contributor.author
Apt Baruch, Werner
Author
dc.contributor.author
Sagua, H.
Author
dc.contributor.author
Panzera, F.
Author
dc.contributor.author
Dujardin, J. P.
Admission date
dc.date.accessioned
2019-01-29T15:32:14Z
Available date
dc.date.available
2019-01-29T15:32:14Z
Publication date
dc.date.issued
1998
Cita de ítem
dc.identifier.citation
Medical and Veterinary Entomology, Volumen 12, Issue 1, 2018, Pages 30-38
Identifier
dc.identifier.issn
0269283X
Identifier
dc.identifier.other
10.1046/j.1365-2915.1998.00074.x
Identifier
dc.identifier.uri
https://repositorio.uchile.cl/handle/2250/161593
Abstract
dc.description.abstract
Among collections of Triatoma spinolai from various sites in northern Chile, adults from coastal populations are invariably wingless, whereas inland populations show balanced alary polymorphism between wingless females and males that are either winged or wingless. Laboratory crosses showed that male offspring from normal-winged parents were always winged (88% long-winged) and those from long-winged male parents were all long-winged. The male offspring from wingless males always included winged males: 11/33 = 33%, of which 8/11 = 73% were long-winged. An X-linked mutation is proposed to inhibit wing development. Field studies of population demography indicate that male alary polymorphism is advantageous in the desert environment of northern Chile.