Open AccessBiological aspects of crosses between Triatoma recurva (Stål), 1868 (Hemiptera: Reduviidae: Triatominae) and other members of the Phyllosoma complex
Author(s) -
MartínezIbarra José Alejandro,
NoguedaTorres Benjamín,
LicónTrillo Ángel,
AlejandreAguilar Ricardo,
SalazarSchettino Paz María,
VencesBlanco Mauro Omar
Publication year - 2015
Publication title -
journal of vector ecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.688
H-Index - 51
eISSN - 1948-7134
pISSN - 1081-1710
DOI - 10.1111/jvec.12139
Subject(s) - reduviidae , triatominae , biology , hemiptera , zoology , reproductive isolation , triatoma , population , demography , sociology
The degree of reproductive isolation between Triatoma recurva (Stål) (Hemiptera: Reduviidae: Triatominae) and the six species of the genus Meccus plus T. mexicana (Herrich‐Schaeffer) (Hemiptera: Reduviidae) was examined. Fertility and the segregation of morphological characteristics were examined in two generations of hybrids from crosses between these species. The percentage of couples with offspring (fertile) was low in the vast majority of sets of crosses, with the exception of that between T. recurva female and M. phyllosomus male. In all studied sets of crosses, no first‐ (F1) or second‐ (F2) generation individuals were morphologically similar to T. recurva but instead shared the morphology of the other parental species. A similar phenomenon was observed in the three successful sets of backcrosses. These results indicated that different recorded levels of reproductive fitness among T. recurva and the species of Meccus involved in this study, plus T. mexicana , are present and that they were apparently influenced by differing mechanisms of isolation. The presence of some degree of reproductive compatibility between studied triatomines of distinct genera ( Meccus spp. and Triatoma spp.) reinforces the need for generic revision of the tribe Triatomini.