TY - JOUR
T1 - Enhancing fitness in offspring of crosses between two triatomine species
AU - Meraz-Medina, Tzintli
AU - Nogueda-Torres, Benjamín
AU - Ceballos-Rodríguez, René Salvador
AU - Godínez-Aceves, Karla Cytlalli
AU - Martínez-Ibarra, José Alejandro
N1 - Publisher Copyright:
© 2019 The Society for Vector Ecology
PY - 2019/6
Y1 - 2019/6
N2 - Chagas disease is one of the main vector-borne diseases in Latin America, including Mexico. Understanding the biological parameters of the triatomine species is a crucial first step in estimating the epidemiologic importance of each group. The aim of this study was to compare the biological fitness of Meccus pallidipennis (Stål), M. bassolsae (Alejandre, Nogueda, Cortez, Jurberg, Galvão, Carcavallo) (Hemiptera: Reduviidae: Triatominae) and their laboratory hybrids, by estimating six biological parameters in order to increase the knowledge of the potential role of triatomine hybrids in the transmission of Trypanosoma cruzi to reservoir hosts. Biological parameters related to lifespan, number of blood meals to molt, mortality for each instar, percentage of females at the end of the cycle, number of eggs laid, and hatching of eggs in four cohorts of 100 specimens of M. pallidipennis, M. bassolsae, and their laboratory hybrids were evaluated and compared. In four of the six studied parameters (accumulative mortality, the percentage of females, mean number of laid eggs, and egg hatching), the hybrid cohorts had better fitness results than the parental cohorts. The increase in hybrid fitness found in our study could lead to an increase in the epidemiologic risks caused by transmission of T. cruzi to humans.
AB - Chagas disease is one of the main vector-borne diseases in Latin America, including Mexico. Understanding the biological parameters of the triatomine species is a crucial first step in estimating the epidemiologic importance of each group. The aim of this study was to compare the biological fitness of Meccus pallidipennis (Stål), M. bassolsae (Alejandre, Nogueda, Cortez, Jurberg, Galvão, Carcavallo) (Hemiptera: Reduviidae: Triatominae) and their laboratory hybrids, by estimating six biological parameters in order to increase the knowledge of the potential role of triatomine hybrids in the transmission of Trypanosoma cruzi to reservoir hosts. Biological parameters related to lifespan, number of blood meals to molt, mortality for each instar, percentage of females at the end of the cycle, number of eggs laid, and hatching of eggs in four cohorts of 100 specimens of M. pallidipennis, M. bassolsae, and their laboratory hybrids were evaluated and compared. In four of the six studied parameters (accumulative mortality, the percentage of females, mean number of laid eggs, and egg hatching), the hybrid cohorts had better fitness results than the parental cohorts. The increase in hybrid fitness found in our study could lead to an increase in the epidemiologic risks caused by transmission of T. cruzi to humans.
KW - Chagas disease
KW - Mexico
KW - Triatominae
KW - biology
KW - hybrids
KW - laboratory conditions
UR - http://www.scopus.com/inward/record.url?scp=85066138588&partnerID=8YFLogxK
U2 - 10.1111/jvec.12341
DO - 10.1111/jvec.12341
M3 - Artículo
C2 - 31124236
AN - SCOPUS:85066138588
SN - 1081-1710
VL - 44
SP - 173
EP - 178
JO - Journal of Vector Ecology
JF - Journal of Vector Ecology
IS - 1
ER -