TY - JOUR
T1 - Two sisters in the same dress
T2 - Heliconius cryptic species
AU - Giraldo, Nathalia
AU - Salazar, Camilo
AU - Jiggins, Chris D.
AU - Bermingham, Eldredge
AU - Linares, Mauricio
N1 - Copyright:
Copyright 2018 Elsevier B.V., All rights reserved.
PY - 2008
Y1 - 2008
N2 - Background. Sister species divergence and reproductive isolation commonly results from ecological adaptation. In mimetic Heliconius butterflies, shifts in colour pattern contribute to pre- and post-mating reproductive isolation and are commonly correlated with speciation. Closely related mimetic species are therefore not expected, as they should lack several important sources of reproductive isolation. Results. Here we present phenotypic, behavioral and genetic evidence for the coexistence of two sympatric 'cryptic' species near Florencia in the eastern Andes of Colombia that share the same orange rayed colour pattern. These represent H. melpomene malleti and a novel taxon in the H. cydno group, here designated as novel race of Heliconius timareta, Heliconius timareta florencia. No-choice mating experiments show that these sympatric forms have strong assortative mating (≈96%) despite great similarity in colour pattern, implying enhanced divergence in pheromonal signals. Conclusion. We hypothesize that these species might have resulted from recent convergence in colour pattern, perhaps facilitated by hybrid introgression of wing pattern genes.
AB - Background. Sister species divergence and reproductive isolation commonly results from ecological adaptation. In mimetic Heliconius butterflies, shifts in colour pattern contribute to pre- and post-mating reproductive isolation and are commonly correlated with speciation. Closely related mimetic species are therefore not expected, as they should lack several important sources of reproductive isolation. Results. Here we present phenotypic, behavioral and genetic evidence for the coexistence of two sympatric 'cryptic' species near Florencia in the eastern Andes of Colombia that share the same orange rayed colour pattern. These represent H. melpomene malleti and a novel taxon in the H. cydno group, here designated as novel race of Heliconius timareta, Heliconius timareta florencia. No-choice mating experiments show that these sympatric forms have strong assortative mating (≈96%) despite great similarity in colour pattern, implying enhanced divergence in pheromonal signals. Conclusion. We hypothesize that these species might have resulted from recent convergence in colour pattern, perhaps facilitated by hybrid introgression of wing pattern genes.
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U2 - 10.1186/1471-2148-8-324
DO - 10.1186/1471-2148-8-324
M3 - Article
C2 - 19040737
AN - SCOPUS:60049084178
SN - 1471-2148
VL - 8
JO - BMC Evolutionary Biology
JF - BMC Evolutionary Biology
IS - 1
M1 - 324
ER -