TY - JOUR
T1 - Biological parameters of two triatoma rubida subspecies (hemiptera: reduviidae) and their laboratory hybrids
AU - Martínez-Ibarra, José Alejandro
AU - Nogueda-Torres, Benjamín
AU - Montañez-Valdez, Oziel Dante
AU - Michel-Parra, J. Guadalupe
AU - Valenzuela-Campos, Ricardo
N1 - Publisher Copyright:
© 2020 The Author(s).
PY - 2020/9/1
Y1 - 2020/9/1
N2 - Chagas disease is one of the most important vector-borne diseases in Latin America, including Mexico. Recently, autochthonous cases have also been detected in the United States of America. It is suspected that two subspecies of Triatoma rubida (Uhler), T. r. sonoriana (Usinger) and T. r. uhleri (Usinger), considered efficient vectors of Trypanosoma cruzi Chagas in Mexico, could interbreed and potentially generate offspring with superior biological characteristics. In this study, the biological parameters of T. r. sonoriana, T. r. uhleri and their laboratory hybrids were evaluated. Hybrids of the two subspecies surpassed both parental subspecies, T. r. sonoriana and T. r. uhleri, in three (numbers of required blood meals to molt [16-20], feeding [10.5-17 min] and defecation times [.1 min post-feeding]) of nine studied biological parameters. Moreover, the hybrids surpassed T. r. uhleri in two additional parameters, development time (298 d) and mortality (39-42%). Both the hybrid and the two parental cohorts had comparable results in the remaining four (onset of feeding, number of obtained females, number of eggs laid, and eclosion rate) of nine studied parameters. Thus, we conclude that hybrid vigor could result in an increased risk of T. cruzi transmission to humans and animals.
AB - Chagas disease is one of the most important vector-borne diseases in Latin America, including Mexico. Recently, autochthonous cases have also been detected in the United States of America. It is suspected that two subspecies of Triatoma rubida (Uhler), T. r. sonoriana (Usinger) and T. r. uhleri (Usinger), considered efficient vectors of Trypanosoma cruzi Chagas in Mexico, could interbreed and potentially generate offspring with superior biological characteristics. In this study, the biological parameters of T. r. sonoriana, T. r. uhleri and their laboratory hybrids were evaluated. Hybrids of the two subspecies surpassed both parental subspecies, T. r. sonoriana and T. r. uhleri, in three (numbers of required blood meals to molt [16-20], feeding [10.5-17 min] and defecation times [.1 min post-feeding]) of nine studied biological parameters. Moreover, the hybrids surpassed T. r. uhleri in two additional parameters, development time (298 d) and mortality (39-42%). Both the hybrid and the two parental cohorts had comparable results in the remaining four (onset of feeding, number of obtained females, number of eggs laid, and eclosion rate) of nine studied parameters. Thus, we conclude that hybrid vigor could result in an increased risk of T. cruzi transmission to humans and animals.
KW - Biology
KW - Chagas disease
KW - North America
KW - Vector
UR - http://www.scopus.com/inward/record.url?scp=85090506144&partnerID=8YFLogxK
U2 - 10.1093/jme/tjaa069
DO - 10.1093/jme/tjaa069
M3 - Artículo
C2 - 32307539
AN - SCOPUS:85090506144
SN - 0022-2585
VL - 57
SP - 1390
EP - 1398
JO - Journal of Medical Entomology
JF - Journal of Medical Entomology
IS - 5
ER -