Comparison of biological fitness in crosses between subspecies of Meccus phyllosomus （Hemiptera： Reduviidae： Triatominae） in southern Mexico  

作　　者：Jose Alejandro Martinez-Ibarra Benjamin Nogueda-Torres Luis Fernando Salazar-Montano Juan Carlos Garcia-Lino Demver Arroyo-Reyes Juan Angel Hernandez-Navarro 

机构地区：[1]Area de Entomologia Medica, Universidad de Guadalajara, Ciudad Guzman, Jalisco, Mexico [2]Becario de COFAA, Escuela Nacional de Ciencias Biologicas, Instituto Politecnico Nacional, D.F., Mexico [3]Carrera de Medicina, Departamento de Salud y Bienestar, Centro Universitario del Sur, Universidad de Guadalajara, Ciudad Guzman, Jalisco, Mexico

出　　处：《Insect Science》2017年第1期114-121,共8页昆虫科学（英文版）

摘　　要：Understanding the biological parameters of some triatomine subspecies of Meccus phyllosomus （Burmeister） is a crucial first step in estimating the epidemiologie importance of this group. Biological parameters related to hatching, lifetime, number of blood meals to molt, percentage of females at the end of the cycle, number of laid eggs, and mortality for each instar of 3 M. phyllosomus subspecies [M. p. mazzottii （Usinger）, M. p. pallidipennis （Stal）, and M. p. phyllosomus] and their laboratory hybrids were evaluated and compared. No significant differences （P 〉 0.05） were found among the experimental hybrids （MaPa, MaPhy, PaPhy） and reciprocal cohorts. In 5 （hatching, number of blood meals to molt, accumulative mortality, percentage of females, and mean number of laid eggs） of the 6 studied parameters （with the exception of development time）, the hybrid cohorts had better fitness results than the parental cohorts involved in each set of crosses. The increase in hybrid fitness found in our study could lead to an increase in the epidemiologic risks caused by transmission of Trypanosoma cruzi to humans.Understanding the biological parameters of some triatomine subspecies of Meccus phyllosomus （Burmeister） is a crucial first step in estimating the epidemiologie importance of this group. Biological parameters related to hatching, lifetime, number of blood meals to molt, percentage of females at the end of the cycle, number of laid eggs, and mortality for each instar of 3 M. phyllosomus subspecies [M. p. mazzottii （Usinger）, M. p. pallidipennis （Stal）, and M. p. phyllosomus] and their laboratory hybrids were evaluated and compared. No significant differences （P 〉 0.05） were found among the experimental hybrids （MaPa, MaPhy, PaPhy） and reciprocal cohorts. In 5 （hatching, number of blood meals to molt, accumulative mortality, percentage of females, and mean number of laid eggs） of the 6 studied parameters （with the exception of development time）, the hybrid cohorts had better fitness results than the parental cohorts involved in each set of crosses. The increase in hybrid fitness found in our study could lead to an increase in the epidemiologic risks caused by transmission of Trypanosoma cruzi to humans.

关 键 词：biological parameters Chagas disease Meccus subspecies Mexico tri- atomines Trypanosoma cruzi transmission 

分 类 号：S513[农业科学—作物学] S54