TY - JOUR
T1 - Biological and genetic aspects of crosses between phylogenetically close species of Mexican triatomines (Hemiptera: Reduviidae)
AU - Martínez-Ibarra, J. A.
AU - Grant-Guillén, Y.
AU - Delgadillo-Aceves, I. N.
AU - Zumaya-Estrada, F. A.
AU - Rocha-Chávez, G.
AU - Salazar-Schettino, P. M.
AU - Alejandre-Aguilar, R.
AU - Villalobos, G.
AU - Nogueda-Torres, B.
PY - 2011/5
Y1 - 2011/5
N2 - Reproductive isolation between Triatoma mexicana (Herrich-Scaeffer) and the six species of the Phyllosoma complex, belonging to the genus Meccus, was examined by analyzing the fertility of experimental hybrids. The percentage of couples with offspring was highest in the set of crosses between Meccus phyllosomus (Burmeister) and T. mexicana, and lowest in those between Meccus pallidipennis (Stål) and Meccus bassolsae (Alejandre-Aguilar, Nogueda-Torres, Cortés-Jimé nez, Jurberg, Galvão, and Carcavallo) with respect to T. mexicana. Crosses between Meccus mazzottii (Usinger), Meccus picturatus (Usinger), and Meccus longipennis (Usinger) and T. mexicana had scarce offspring, whereas offspring from crosses between M. phyllosomus and T. mexicana were abundant. However, all F1 nymphs died in different instars before reaching sexual maturity. The biological evidence in this study suggests that different degrees of reproductive isolation exist between T. mexicana and the different species of Meccus. Our data also support the current status of T. mexicana as a separate species.
AB - Reproductive isolation between Triatoma mexicana (Herrich-Scaeffer) and the six species of the Phyllosoma complex, belonging to the genus Meccus, was examined by analyzing the fertility of experimental hybrids. The percentage of couples with offspring was highest in the set of crosses between Meccus phyllosomus (Burmeister) and T. mexicana, and lowest in those between Meccus pallidipennis (Stål) and Meccus bassolsae (Alejandre-Aguilar, Nogueda-Torres, Cortés-Jimé nez, Jurberg, Galvão, and Carcavallo) with respect to T. mexicana. Crosses between Meccus mazzottii (Usinger), Meccus picturatus (Usinger), and Meccus longipennis (Usinger) and T. mexicana had scarce offspring, whereas offspring from crosses between M. phyllosomus and T. mexicana were abundant. However, all F1 nymphs died in different instars before reaching sexual maturity. The biological evidence in this study suggests that different degrees of reproductive isolation exist between T. mexicana and the different species of Meccus. Our data also support the current status of T. mexicana as a separate species.
KW - Phyllosoma complex
KW - experimental hybrids
KW - reproductive isolation
KW - triatomines
UR - http://www.scopus.com/inward/record.url?scp=79955965794&partnerID=8YFLogxK
U2 - 10.1603/ME10159
DO - 10.1603/ME10159
M3 - Artículo
C2 - 21661335
AN - SCOPUS:79955965794
SN - 0022-2585
VL - 48
SP - 705
EP - 707
JO - Journal of Medical Entomology
JF - Journal of Medical Entomology
IS - 3
ER -
